**Metabolism **is the chemical process by which your body **breaks down **the nutrients in foods to release energy for the cells in your body (Option 3).

The term **Metabolism **makes reference to all chemical reactions by which the body can obtain energy from foods by breaking them down into smaller elements. The breakdown of chemical bonds releases energy, which is used to generate **Adenosine triphosphate**, the energy coin of the cells.

Therefore, we can conclude that **metabolism **refers to the groups of pathways by which an organism breaks down nutrients such as proteins or carbohydrates in order to obtain energy for cells and perform diverse activities (e.g. growth, differentiation, etc)

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The energy diagram shows the changes in energy during a chemical reaction.

Which statement best describes the total energy change of the system?

Potential energy

Reaction progress

• A. The reactants have higher potential energy, and energy is released.

absorbed.

• B. The reactants have higher potential energy, and energy is

absorbed.

C. The products have higher potential energy, and energy is

D. The products have higher potential energy, and energy 1S released.

B. The **reactants **have higher** potential energy**, and energy is absorbed is the statement that best describes the **total energy** change of the system.

The difference in the amounts of **chemical energy** that are stored in the products and reactants accounts for the energy change in a chemical reaction. **Enthalpy** refers to the system’s heat content or stored chemical energy.

Potential energy can be described as the energy which a body possess because of its position. The **potential energy** can also be said as stored energy. The energy diagram that shows the changes in energy is called as a **chemical reaction. **

Potential energy and the **Reaction progress** are shown in the problem and from this the reactants are seen as the substance which reacts and form one or more than one product.

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The table shows the mass of and acceleration due to gravity for several

planets in the solar system. If air resistance is ignored, on which planet would

a space probe with a mass of 250 kg a have the highest speed after falling 25

m?

Planet

Mass, 1024 kg

Acceleration due to gravity,

m/s-

Venus

4.87

8.9

Earth

5.97

9.8

Uranus

86.8

8.7

Saturn

568

A. Earth

• B. Venus

• C. Saturn

O D. Uranus

Mass does not affect the speed of falling objects, As there is only **gravity **acting on them.

The **mass **of Uranus exists: 8.681 × 10²⁵kg

The **radius **of **Uranus **exists: 15,759.2 miles

Acceleration due to gravity exists as the **acceleration **gained by an object due to **gravitational force**.

Its **SI unit** exists m/s2. It contains both **magnitude **and **direction**.

The planet would be a space probe with a mass of 250Kg

The distance is 25m.

Mass does not affect the speed of falling objects, As there is only gravity acting on them.

The **mass **of Uranus exists m = 8.681 × 10²⁵kg

The **radius **of Uranus exists: 15,759.2 miles

Therefore, the correct answer is option D. Uranus

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Certain iguanas have been observed to run as fast as 10.0m/s.Suppose an iguana runs in a straight line at this speed for 5.00 s. The direction of motion makes an angle of 30.0° to the east of north. Find the value of the iguana’s northward displacement.

The value of the iguana’s** northward displacement **is 1 meter.

The **velocity V** of iguana is 10m/s.

The time for which iguana runs is 5 seconds.

The angle it is making with the north is 30°.

The velocity of** iguana **will have two components now,

One along east and one along north.

The component along east is** Vcos(30°).**

And the component along north is** Vsin(30°).**

The horizontal displacement of the iguana is,

Northward displacement = **northward velocity × time.**

The northward velocity is 10sin(30°).

Time is 5 seconds no matter where the iguana moves.

So,

**Northwards displacement** = 10sin(30°)/5

Northwards displacement = 10/10 = 1m

The **displacement **in north is 1 meter.

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calculate the force exerted between two charged objects seperated by a distance of 0.6 m. one object has a charge of -5 C and the other has a charge of +2.0 C

The **electrostatic force** of **repulsion** between the **two charges** is equal to **0.25 x 10¹¹ N.**

What is the formula to calculate the force between 2 point charges?

The** coulomb's law** is used to find the **force** between two** point charges**. The** force** can be calculated using the** formula **-

**F = 1/4πε₀ |Q₁||Q₂|/r²**

Given is two** charged objects **separated by a distance of** 0.6 m** such that one object has a charge of **-5 C **and the other has a charge of **+2C.**

The **electrostatic force** of **repulsion** between the **two charges** is given by-

**F = 1/4πε₀ |Q₁||Q₂|/r²**

F = 9 x 10⁹ x (5 x 2)/(0.6)²

F = 90 x 10⁹/0.36

F = 9 x 10¹¹/36

**F = 0.25 x 10¹¹ N**

Therefore, the **electrostatic force** of **repulsion** between the **two charges** is equal to **0.25 x 10¹¹ N.**

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The diagram represents a ball being kicked by a foot and rising at an angle of 30 degrees from the horizontal. The ball has a velocity of 5.0 meters per second. (Neglect Friction) If the angle between the horizontal and the direction of the 5.0 meters per second decreases from 30 degrees to 20 degrees, what is the magnitude of the horizontal component of the balls initial velocity

The **magnitude of the horizontal component** of the balls initial velocity if the angle between the horizontal and the direction of the 5.0 meters per second decreases from 30 degrees to 20 degrees is 4.7 m / s

**cos θ = Adjacent side / Hypotenuse**

θ = 20°

V = 5 m / s

Since the direction of ball makes a right angled triangle with the horizontal,

cos θ = [tex]V_{x}[/tex] / V

[tex]V_{x}[/tex] = cos 20° * 5

[tex]V_{x}[/tex] = 0.94 * 5

[tex]V_{x}[/tex] = 4.7 m / s

The formula used to solve is called as **trigonometric ratios formulas**. The basic formulae are:

sin θ = Perpendicular/Hypotenuse

cos θ = Base/Hypotenuse

tan θ = Perpendicular/Base

Therefore, the magnitude of the horizontal component of the balls initial velocity is **4.7 m / s**

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the diagram at right shows a person sitting in a chair riding on a ferris wheel. the chair is attached to the wheel by a rod. the ferris wheel turns with constant speed the mass of the person is two times that of the chair

The ranking of the boy's location in the **ferris wheel** ridding motion above comparing his felt weight from the **highest** to the lowest is 1, 2 and 4 tie, 3.

The correct answer choice is option c.

The correct image is **attached**.

In motion above by the boy, the boy feels he weighs the greatest at **location 3** among all the location simply because there is a force known as **centripetal force** which technically acts **upward** at that point which makes more weight be felt among all.

However, at the locations 2 and 4, the force actually was acting **side ways**, which would still not affect the weight from 3 in the circular movement. And at location, the weight felt feels the lowest among all.

In conclusion, the **locations** of the boy on a ferris wheel ridding from the greatest is highest to the lowest is 1, 2 and 4 tie, 3.

**Complete question**:

The diagram above represents a Ferris wheel-a circular ride that rotates in a vertical circle with seats where people sit. The numbers correspond to a seat in four difference places as the Ferris wheel rotates.

Imagine a boy sitting in this seat riding the ride with the Ferris wheel rotating in the direction shown (at constant speed). Rank the locations according to how much the boy would feel like he weighs,greatest first.

a. 1, 2, 3, 4

b. 1 and 3 tie, 2 and 4 tie.

c. 1, 2 and 4 tie, 3

d. 4, 3, 2, 1.

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A group of physics students launched a rocket in a field at their school. They recorded the time it took for the rocket to launch into the air and come back to the ground. They calculated their average time for their rocket to land to be 12.74 seconds.

1. How long did the rocket take to reach max height?

2. What is the velocity of the rocket at max height?

3. What is the initial velocity of the rocket?

4. What was the maximum height of the rocket?

The **time taken by the rocket** to reach maximum height is 6.37 s. The velocity of the rocket at maximum height is 62.43 m/s. The initial velocity of the rocket is 0. The maximum height of the rocket is 198.8 m.

1 ) Total time taken = 12.74 s

Time taken to reach maximum height = Time taken to reach the ground from the maximum height

Time taken to reach maximum height = 12.74 / 2

Time taken to reach maximum height = 6.37 s

2 ) a = g = 9.8 m / s²

**v = u + a t**

v = 0 + ( 9.8 * 6.37 )

v = 62.43 m / s

3 ) The initial velocity of the rocket is zero

4 ) According to equations of motion,

**s = u t + 1 / 2 a t²**

s = 0 + ( 1 / 2 * 9.8 * 6.37² )

s = 198.8 m

Therefore,

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Find the resultant of the following vectors:

ASAPPPPP!!!!!

The **resultant vector** is middle line which is the longest line representing the single effect of the two **vectors** at both ends.

A** resultant vector** is defined as a single vector that produces the same effect as the two or more vectors combined together.

A **resultant vector** is usually, drawn to join the head of the first vector to the tail of the second in a triangle method of vector addition.

Also, a **resultant vector** can be determined by applying parallelogram law of vector addition.

Mathematically, a resultant vector can be determined using this formula,

R² = a² + b² - 2ab cosθ

where;

a is the first vectorb is the second vectorθ is the angle between vector a and vector bA** resultant vector** is always bigger than the two vectors acting together.

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ANSWER IN PHOTO, NO LINK!

3. Draw additional masses to show how the block can be made to move toward point A. Be sure to draw the

string and label the mass of the block. For full credit, draw the minimum number of blocks required to make

the block move toward point A.

Answer:

Any **mass **greater than 150g attached to 100g will make the block move towards point A. Thus, there can be any number of blocks attached to it, but the total **mass **of the attached blocks must add up to 150g.

The newton, abbreviated N, is the SI unit of force. These are base units that are **pertinent **to force.

The symbol for the length unit of a meter is m. the kilogram (kg), a unit of mass. s stands for the second, a unit of time.

How do you determine a seesaw's balance?Seesaws are regulated by a **straightforward equation** that states that for balance to occur, the force applied to one end of the seesaw multiplied by the distance from the **pivot **should equal the force applied to the other side of the seesaw multiplied by the distance from the pivot.

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a boat traveling at 22.0 m/s when the driver see'sa log in the river ahead. The driver backs off on the throttle and slows the boat to 8.00 m/s in a time of 5.00 seconds What is the acceleration of the boat?

The **acceleration **of the boat is 2.8 m/s².

**Acceleration **is the fee of trade of the rate of an object with admire to time. Accelerations are vector quantities. The orientation of an item's acceleration is given by means of the orientation of the internet pressure appearing on that object.

The **acceleration **is the rate of change of **displacement**. Acceleration is the price of an alternative to speed. velocity is a vector amount as it consists of each magnitude and path. Acceleration is also a vector amount as it's far just the rate of alternate speed. **Newton s 2nd law **of movement additionally referred to as the law of force and Acceleration, a pressure upon an item causes it to accelerate consistent with the method internet force = mass x acceleration.

So the **acceleration **of the object is at once proportional to the pressure and inversely proportional to the mass.

Calculation:-

v = u - at

8 = 22 - a×5

a = (22 - 8)/5

a = 2.8 m/s²

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Two 1.6 cm-diameter disks face each other, 1.2 mm apart. They are charged to ± 15 nC. What is the electric field strength between the disks?

The **electric field **between the **disks **is 8.43*10^6 N/C

**What is electric field of charged spherical spheres ?**A simple application of Gauss' law will yield the

The **electric field** is observed to be the same as a point charge Q at the **sphere's centre.** A Gaussian surface at r R will encompass no charge because all the charge will be on the conducting surface, and by virtue of its symmetry, can be observed to be zero at all places inside the **sphere**

Diameter of the **disks **= 1.6cm

Radius of the **disks **= 1.6/2= 0.8cm= 0.008m

gap between 2 **disks **d = 1.2mm = 0.0012m

Charge Q = ±15nC

E =σ/ϵ = Q/Aϵ = 15*10^-9/(8.854*10^-12*3.14*(0.008^2))

= 8.43*10^6 N/C

here,

σ (sigma) is surface **charge density **(C/m^2) and

ϵ (epsilon) is permittivity of free space

The **electric field **between the **disks **is 8.43*10^6 N/C

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Not sure how to do part a, b and c

Variables typically consist of **space**, time, and occasionally parts of **momentum**. The bicycle eventually travels at 13.8 m/s.

According to** Newtonian mechanic**s, an object's mass and velocity are combined to form its linear momentum, **translational momentum**, or just momentum. As a vector quantity with both a magnitude and a direction, it has both. When an object's mass (m) and **velocity** (v), another **vector** **quantity**, are known, the object's momentum (p) is also known.

An object's **mass**, velocity, and direction are related by the concept of momentum. Force is produced whenever **momentum** changes. As a result, the **force pushing** against the object is identified by a change in momentum.

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what type of focal length was primarily used in citizen kane?

25mn type of** focal length** was primarily used in **citizen kane**.

The focal lengths and lenses used by 19 notable directors are analyzed in a new video essay by **Wolfcrow**, starting with Orson Welles' use of 25mm for **Citizen Kane** and 18mm for Touch of Evil.

In Orson Welles' Citizen Kane, deep focus was frequently used to provide the audience with insight into Charles Foster Kane's thoughts or to reveal more about his life. With deep focus, the foreground, middle ground, and backdrop are all sharply in** focus** at once.

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Can someone pls help meee

In the **diagram **the numbered **parts **are:

1. Muscle belly

2. Fascicle

3. Epimysium

4. Myofibril

5. Muscle fiber

6. Endomysium

7. single muscle fiber

8. H zone

9. Z disc

10. Sarcolemma

Explain anatomy of muscle?Each muscle is made up of

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When solving projectile problems, you may hear that “motion in the x- and y-directions are independent of each other.” What does this mean, in terms of your problem solving?

x and y directions are the component of **projectile motion**. x represents **horizontal **motion and y represents **vertical **motion.

There are the two **components **of the projectile motion - **horizontal **and **vertical **movement. And on the grounds that perpendicular components of movement are impartial of every other, these components of movement can be mentioned separately.

**Projectile motion** is a form of movement skilled by an object or particle that is projected close to Earth's surface and moves alongside a curved route under the action of **gravity **most effective.

**Projectile motion** is the movement of an item thrown into the air. After the preliminary pressure that launches the item, it only experiences the pressure of gravity. The item is known as a projectile, and its route is known as its **trajectory**.

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Please answer the question on the photo

**Answer:**

*your** **answers** **is** **option** **d** **75** **ohms** *

Complete the following table about metric units

The change in the **speed** of the object is **constant** with constant increment of 5 m/s.

The change in the **speed** of an object is the rate at which the distance covered by the object changes with time.

The change in the **speed** of the object at various time is calculated as follows;

at time, t = 0 second, change in speed (Δv) = 0

at time, t = 1 second, change in speed (Δv) = 5 m/s - 0 m/s = 5 m/s

at time, t = 2 seconds, change in speed (Δv) = 15 m/s - 5 m/s = 10 m/s

at time, t = 3 seconds, change in speed (Δv) = 30 m/s - 15 m/s = 15 m/s

at time, t = 4 seconds, change in speed (Δv) = 50 m/s - 30 m/s = 20 m/s

at time, t = 5 seconds, change in speed (Δv) = 75 m/s - 50 m/s = 25 m/s

Thus, we can conclude that, the data given in the table has time which increased gradually while the **speed** also increase gradually but with a constant increment.

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A car must cover a distance of 300 km in 3 hours. However, for the first 2

hours it only travels 150 km. At what speed must it travel for the rest of the

distance in order to complete the journey on time?

**Answer:**

150 km/h

**Explanation:**

After the first two hours, you have traveled 150km (given) which means that you still have 300km - 150km = 150km left to travel. Since you have already traveled 2 hours, that means you must travel the remaining 150km in 3hours - 2hours = 1hour. Assuming the answer is in km/hour, you will need to travel at a speed of 150km/1h = 150km/h for the remaining of the distance.

What did Newton imagine on top of his imaginary mountain for his thought experiment on gravity?A. treeB. planeC. birdD. cannon

**D. cannon**

Newton imagined a cannon on top of a mountain. Without gravity, the cannonball should move in a straight line. If gravity is present, then its path will depend on its velocity.( A and B)

If there were no forces of gravitation or air resistance, the body should follow a straight line away from Earth, in the direction that it was projected (E), If a gravitational force acts on the projectile, it will follow a different path depending on its initial velocity.

so, we can conclude the answer is

**D. cannon**

I hope this helps you

An Alaskan rescue plane traveling 43 m/s drops a package of emergency rations from a height of 108 m to a stranded party of explorers. The acceleration of gravity is 9.8 m/s^2. Where does the package strike the ground relative to the point directly below where it was released? What is the horizontal component of the velocity just before it hits? What is the vertical component of the velocity just before it hits? (Choose upward as the positive vertical direction)

**Answer:**

**Explanation:**

Given:

V₀ = 43 m/s

H = 108 m

g = 9.8 m/c²

____________

L - ?

Vₓ - ?

Vy - ?

1)

Fall time:

H = g*t² / 2

t = √ ( 2*H / g) = √ (2*108 / 9.8) ≈ 4.7 s

**L = V*t = 43*4.7 ≈ 200 m**

2)

**Vx = V₀ = 43 m/s**

**Vy = - g*t = - 9.8*4.7 ≈ - 46 m/s**

you have not eaten for four days. when you finally have a candy bar, which is most likely to occur? your ____ will be reduced, but your____ will not.

For a person who has not eaten for four days and then finally has a candy bar, your **food **drive will be reduced, but your **food **need will no.t

**Food **refers to any substance that is taken into the body and which contains nutrients that provide energy for the body and also provide the body with materials required for the growth and repair of body tissues.

There are seven classes of **food **that the body needs and they include:

**Food drive** refers to the urge to eat food and may be easily satiated.

**Food need **on the hand has to do with all the food that the body needs for healthy growth and is not easily met.

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A ray of sunlight moves from the air into the denser medium of a pond. The light ray will? A) Be reflectedB) not be affected C) speed up D) slow down

When a ray of light passes from the rarer medium to the denser medium, it bends towards the normal.

When the ray of sunlight moves from the air into the denser medium of a pound, the light ray will slow down as it passes rarer to denser medium. It bends towards the normal.

Thus, the correct option is** (D)**.

What is TRUE about the rifling of a gun?

O

It produces grooves and lands.

It is another name for the inside of a gun barrel.

O

It only appears in .38 caliber firearms.

O

It can only be seen with a microscope.

**Answer:**

It produces grooves and lands.

A mineral that forms when water evaporates is

a Gold

b Silver

C Halite

d Diamond

**Answer:**

Halite

**Explanation:**

how might you change the number of people to decrease the carriages acceleration?

The rate at which **an object's velocity with respect to time changes is referred to as acceleration in mechanics**. It is a vector quantity to accelerate (in that they have magnitude and direction). The direction of the net force applied on the item determines the object's acceleration.

The definition of** acceleration (symbol: a)** in physics or physical science is the rate of change (or derivative with respect to time) of velocity.

The equation a = v/t denotes acceleration (a), which is the change in velocity (v) over the change in time (t).

What is the velocity in units? The displacement that an object or particle experiences with respect to time is expressed vectorially as velocity. The meter per second (m/s) is the accepted **unit of velocity magnitude (also known as speed).**

When an item is travelling at a constant speed, its **acceleration can be zero.** There won't be any acceleration because the speed is constant, hence there won't be any change in speed. Zero acceleration is shown by the graph above.

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Cody's car accelerates from 0m/s to 45 m/s northward in 15 seconds. What is

the acceleration of the car?

According to the given statement the **acceleration **of the **car** is **3ms².**

Depending on whether an **object** is moving much faster, slower, or in a different direction, its speed may change. Examples of **acceleration** include a falling apple, the moon orbiting the earth and a car which has stopped at a stop sign.

**Uniform** **acceleration**, non-uniform acceleration, and **average** **acceleration** are the three different forms of accelerated motions.

Let **acceleration** be 'a'

v = u + at

a = v - u/t

a = 45 - 0 /15

a = 45/15

a = 3 ms²

So, **acceleration** will be **3 m/s² .**

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At a construction site, a 30.0-kg bucket of concrete is

connected over a very light frictionless pulley to a 375-N

box on the roof of a building. (Figure 1) There is no

appreciable friction on the box, since it is on roller

bearings. The box starts from rest.

**Answer:**

What is the full question?

FIGURE 2 shows that a solid, frictionless cylindrical pulley with the radius 0.33 m is used to draw water from a well. A bucket of mass 1.53 kg is attached to a cord that is wrapped around the cylinder. We assume the cord has negligible mass and does not stretch or slip the pulley. Given that the moment of inertia of the pulley is 0.385 kg m².

(a) Calculate the angular acceleration a of the pulley and the linear acceleration a of the bucket.

(b)Determine the tension in the cord.

The **angular acceleration** a of the pulley and the **linear acceleration** a of the bucket are 12.85 rad/s² and 4.24 m/s² respectively.

The **tension** in the cord is 6.49 N.

The **angular acceleration** of an object is the rate of change of angular velocity with time.

Apply the principle conservation **angular momentum** to determine the angular acceleration of the pulley.

τ = Iα

Fr = Iα

mgr = Iα

α = mgr/I

where;

m is mass of the bucketg is acceleration due to gravityr is the radius of the pulleyI is moment of inertia of the pulley.α = (1.53 x 9.8 x 0.33) / (0.385)

α = 12.85 rad/s²

The **linear acceleration** of the pulley is calculated as follows;

a = αr

a = 12.85 rad/s² x 0.33 m

a = 4.24 m/s²

The **tension** in the cord is calculated as follows;

T = ma

T = 1.53 kg x 4.24 m/s²

T = 6.49 N

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(1) If a man lifts a a 20-kg

bucket from a well and does 6

kJ of work, how deep is the

well? Assume the speed o the

bucket remains constant as it is

lifted.

If a man lifts a a 20-kg bucket from a well and does 6 kJ of work, the well will be **30.6 m deep.**

**W = m g h**

W = Work

m = Mass

g = Acceleration due to gravity

h = Height

m = 20 kg

g = 9.8 m / s²

W = 6 KJ

W = 6000 J

h = W / m g

h = 6000 / 20 * 9.8

h = 30.6 m

W = m g h is derived from **W = F * d**. According to Newton's second law of motion, F = m a. Since the object is moving vertically upwards, a = g. Therefore, F = m g and hence W = m g h

Therefore, the well is **30.6 m deep**

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An object is suspended from two cables that meet at a point above the object. One cable pulls with a force modeled by F1 = −78i + 44j. The other cable pulls with a force modeled by F2 = 87i + 80j. What is the angle between the cables? Round to the nearest degree.150°108°104°71°

From the information given, the forces are

F1 = −78i + 44j

F2 = 87i + 80j

We would apply the dot product.

F1F2 = <- 78, 44> * <87i, 80j>

F1F2 = - 78(87) + 44(80) = - 6786 + 3520

F1F2 = - 3266

|F1| = √[(- 78)^2 + 44^2] = √8020

|F2| = √[87^2 + 80^2] = √13969

The angle between them is

θ = Cos^-1[F1F2/(|F1||F2|)

θ = Cos^-1(- 3266/√8020 * √13969

θ = Cos^-1(- 0.30856)

**θ = 108 degrees**

**the angle between the cables is 108 degrees**

What are some of the major innovations in science and thinking as we move from the Middle Ages to the Renaissance?
reciprocal of b-1/b
What is the meaning of life? oh andEarly humans migrated to the Americas by crossing the _________. Something to do with Siberia and Alaska. Please answer both.
If the bird birds' beak differences mean that each eats different foods, how did the trait become more common in the finches on different islands? ( hint: how does evolution cause different traits to become more or less common amongst a population of organism)
1. After all these years I can picture that old time to myself now, just as it was then.A. an example of Twain's conversational toneB. an example of technical termsC. an example of colloquial languagequad
Identify the missing statement or reason A. Definition of midpoint B. Definition of angle bisector C. Reflexive property D. Alternate interior angles Theo
Based on the analysis of the poem, the family responds to change by "building ________________". One line from the poem that supports this conclusion is: "____________________________________________". This line supports that the family's RESPONSE to change is to "build ________s" because ___________________________________. Another line that supports this is :"_______________________________________". This line illustrates that the family is responding to change in a __________ way.
Sandeep is making fruit dip for a party. His recipe calls for 1/2 of a teaspoon of cinnamon and 3/4 of a cupof yogurt. Using this ratio, how much cinnamon does Sandeep need if he uses 3 cups of yogurt?
In two or three paragraphs, compare and contrast the points of view of Wilson, Clemenceau, and Lloyd George at the ParisPeace Conference. What were the most important goals of each leader, and how did they compare toeach other?
a 18.0-kg child descends a slide 2.20 m high and reaches the bottom with a speed of 1.50 m/s .how much thermal energy due to friction was generated in this process?
PLEASE HELP I WILL MARK BRAINLIEST!!!! A thunderstorm! You see a flash of lightning across the sky. Five seconds later, your hear the thunder. Iflightning and thunder come from the same source, then why don't they occur at the same time?They do! The time difference is due to the way sound waves and light waves travel. Light travelsextremely fast through the air, 300,000,000 m/s. Sound travels much slower, 343 m/s through air.Therefore we can see light in an instant, but it takes a while to hear thunder. The speed of light waves andsound waves depends on the medium through which they travel. Take a look at the data in the imageabove.How do the speeds of sound and light waves compare?1xABCDSound waves travel fastest through a dense medium like the solid ground.Light waves can travel through a vacuum; sound waves cannot.Light waves cannot travel through a dense material like a solid.The denser the medium, the faster sound travels.EThe speeds of light and sound are affected in the same way in different mediums.
A leaky faucet drips 1/4 fluid ounce of water every 20 minutes. How many Gallons of water will leak from this faucet in 1 year? (Round to the nearest gal.)
Complete the sentence below.35 280 is ten times bigger than
June has 72 gallons of punch for a party. June carries the punch in two different full coolers. The bigger cooler is five times as large as the smaller cooler. How many gallons can each cooler hold?
1 point1ABCDpointfollowing questions.The author's main purpose for writing this article is to -Adescribe how America's culture is more enjoyable because of its Native American influenceB argue that America's strength comes from its diverse cultural compositionCshow that America can advance more quickly if it places more value on imaginationD explain why America is so attractive to people from African nations
Maglev Trains: Speeding Into the FutureThere are new trains coming, ones that have no wheels and float on air. No, they are not science fiction. They are Magnetically Levitated Trains, or Maglevs for short. These high-tech trains have no need for wheels because a strong magnetic field suspends them just ten millimeters above the track, or guideway. Changes in the magnetic field propel the floating trains forward. Without any contact between the trains and the guideway to slow them down, Maglevs can reach speeds much greater than normal trains. The Japanese-built MLX-01 Maglev train has reached nearly 350 miles per hourfaster than manysingle-propeller airplanes! Due to high costs and changing technology, there are only a few Maglevs in operation today. However, the speed and efficiency of these amazing machines will simplify transportation in the future.What is the topic, or main idea, of the passage?A.Maglev trains using special wheelsB.the many Maglev trains around the worldC.Maglev trains and how they moveD.single-propeller airplanes replaced by Maglevs
convert -20C to degrees Fahrenheit using the formula F = 9/5C + 32. (F=9/5(-20)+32)
Students are selling raffle tickets for a school fundraiser. They collect $24 for every raffle ticket they sell.Suppose M is the amount of money the students collect for selling R raffle tickets. Write an equation that reflects the relationship between M and R.
Olivia bought snacks for her team's practice. She bought a bag of chips for $2.25 and a 8-pack of juice bottles. The total cost before tax was $11.69. Which equation could be used to determine j, how much each bottle of juice costs?
HELP ME Which of these describes a PERSON/PEOPLE in early Spain/Mexico? (Click all the ones that are a person/people - you will have multiple selections)Question 1 options:VaqueroSurveyPioneerTejanoFriarDowry