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3 years ago

7

Explain why it is dangerous to jump from a fast moving train

1 answer:

Sergeu [11.5K]3 years ago

7 0

Answer:

When you jump off a train, you jump off a certain height and your downwards (vertical) velocity is zero. But your forward (horizontal) velocity is not. You will hit the ground on split second with your horizontal velocity practically the same as the train.

Explanation:

you be in serious injury.

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3 years ago

If a soccer ball takes 20 seconds to roll 10 meters, what is the average speed of the soccer ball?

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3 years ago

Samples of different materials, A and B, have the same mass, but the sample

Effectus [21]

Answer:

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3 years ago

A string on the violin has a length of 24.20 cm and a mass of 0.0992 g. The fundamental frequency of the string is 659.3 Hz.

Alexus [3.1K]

Answer:

a. The speed of the wave is 319.1m

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Explanation:

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3 years ago

A force of 150 N is applied to a 25 cm2 piston in a hydraulic machine. What is the area of a larger piston if the force availabl

Colt1911 [192]

Answer:

The answer to your question is 75 cm²

Explanation:

To solve this problem, we need to use the Pascal's principle that states that the pressure in a point is equal to the pressure in a second point.

$\frac{F1}{A1} = \frac{F2}{A1}$

Process

1.- Solve for A2

$A2 = \frac{F2A1}{F1}$

2.- Substitution

$A2 = \frac{450N x 25 cm2}{150 N}$

3.- Simplification and result

$A2 = \frac{11250}{150}$

A2 = 75 cm²

8 0

4 years ago