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Arisa [49]
3 years ago
15

How far will a car travel in 30 min at 40 m/s? (kilometres)

Physics
1 answer:
kondor19780726 [428]3 years ago
6 0

Answer:

72km

Explanation:

30 mins --> 30 x 60 s = 1800 s

Distance --> Speed x Time

= 40m/s x 1800s

= 72 000 m

= 72 km (1km is 1000m)

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Given:
P = 1000 W, power input
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Let t = time required to raise the temperature f the water.
Then
P*t = m*c*ΔT
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The greater the height of a ramp, the shorter the time it takes for an object to move down the ramp.

The greater the amount of salt, the In addition the larger the longer it takes water to boil.

An increase in volume of water increases the time it takes to boil and vice versa.

Increase in the length of the paper airplane, the farther it will fly.

Jumping Jack increases the heart rate.

<h3>How does the height of a ramp affect the time it takes for an object to move down the ramp?</h3>

A ramp is an inclined plane which is a form of simple machine that is used to lift heavy objects off the floor or to lower heavy objects down.

The greater the height of a ramp, the shorter the time it takes for an object to move down the ramp due to increased acceleration.

<h3>How does the amount of salt affect how long it takes water to boil?</h3>

The addition of solutes to pure solvent raises the boiling point of the solute.

Therefore, the greater the amount of salt, the In addition the larger the longer it takes water to boil.

<h3>How does the volume of water affect how long it will take to boil?</h3>

The mass of water increases with increase in volume of water.

Therefore, an increase in volume of water increases the time it takes to boil and vice versa.

<h3>How does the length of a paper airplane affect how far it will fly?</h3>

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Therefore, an increase in the length of the paper airplane, the farther it will fly.

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Exercise increases the heart rate.

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Learn more about ramp and inclined plane at: brainly.com/question/10352783

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