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3 years ago

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Physics

1 answer:

Kryger [21]3 years ago

8 0

Answer:

What-is-your-speed-as-you-cross-the-intersection-Assume-that-the-acceleration/ ... Paul-is-driving-at-a-constant-known-velocity-v-when-they-start-their-experiment/ ... /3-We-made-sure-to-keep-the-data-lists-for-each-position-separate-to-avoid/ ... -submarine-Squalus-sank-at-a-point-where-the-depth-of-water-was-730-m/ ...

Explanation:

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A stone is thrown vertically upward with an initial speed of 24.7 m/s. Neglect air resistance. The speed of the stone when it is

fredd [130]

Answer:

The speed of the stone when it is 4.66 m higher is 236.057 m/s.

Explanation:

Given the initial velocity and vertical distance, we can use the fourth kinematic equation ( $v^{2} =v_{o}^{2}+2ay$ ) to find v final, or the v to the left of the equal sign. We know $v_{o}$ (initial velocity) is 24.7 m/s, y (change in vertical distance) is 4.66 m, and a is another way to write g (acceleration due to gravity), or 9.8 $m/s^{2}$ .

From here you could plug in the values and solve for v final, but to make the solving process simpler, we can simplify the given equation, <em>then </em>plug in the known values.

To isolate v final, we can take the square root of $v^{2}$ and do the same to the right side of the equation. Therefore, we can find v final with: $v_{o} \sqrt{2ay}$ , where v initial is outside of the square root because it squared...

If we plug in the known values to the simplified equation, we get: $v=24.7m/s*\sqrt{2(9.8m/s)(4.66 m)}$

The final answer is 236.057 m/s.

4 0

2 years ago

Compare and contrast the energy transfer of a roller coaster to that of a pendulum

Softa [21]

When the pendulum and roller coaster move to the top, its has more potential energy whereas when comes to the bottom has more kinetic energy.

<h3>Compare and contrast the energy transfer of a roller coaster to that of a pendulum:</h3><h3>What is the transfer of energy in a roller coaster?</h3>

The transfer of potential energy to kinetic energy occur when the roller coaster move along the track. As the motor pulls the cars to the top, the body has more potential energy whereas when the body comes to the bottom , it has kinetic energy in the object.

<h3>What is the energy transfer in a pendulum?</h3>

As a pendulum swings, its potential energy changes to kinetic energy and kinetic energy changes into potential energy. At the top more potential energy is present.

So we can conclude that When the pendulum and roller coaster move to the top, its has more potential energy whereas when comes to the bottom has more kinetic energy.

Learn more about energy here: brainly.com/question/13881533

#SPJ1

8 0

2 years ago

a car is moving down the street at 55km/h. a child suddenly runs into the street. If it takes the driver 0.75 seconds to react a

Lelechka [254]

11.46 meters

55 km/h = ? m/s
55 km/h × 1000 (meters per km) = 55,000 m/h
55,000 m/h ÷ 3,600 (seconds in an hour) = 15.28 m/s
15.28 m/s × 0.75 s = 11.46 m

3 0

4 years ago

Hi guys. Im doing a project at school where we have to create a mouse trap powered car. I wanted to know what materials are a mu

natta225 [31]

Depends on how heavy ur car is, u could use a high powered fan to move the can or u could use the motor and wheels from a remote control car

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3 years ago

To understand thermal linear expansion in solid materials. Most materials expand when their temperatures increase. Such thermal

Marat540 [252]

Answer:

Check the explanation

Explanation:

Kindly check the attached image below to see the step by step explanation to the question above.

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3 years ago