3 years ago

Which of the following is a definition of acceleration? *

1 answer:

8 0

Answer:

Acceleration is the rate of change of velocity. Usually, acceleration means the speed is changing, but not always. When an object moves in a circular path at a constant speed, it is still accelerating, because the direction of its velocity is changing.

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What is The distance traveled by a vehicle in 12 minutes,if it’s speed is 35km/h

Delvig [45]

Answer: 7 km

Explanation: 12 minutes is 1/5 of an hour. 35/5=7

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3 years ago

Doubling an object’s height will have what effect on its potential energy due to gravity?

timurjin [86]

Potential energy due to gravity = Ep = mgh [symbols have their usual meaning ]
Evidently, HALVING the mass will make Ep , HALF its previous value. So, It will be halved.

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2 years ago

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A sky diver, mass 90 kg, reaches a terminal velocity of 60 m/s. What is the approximate magnitude of the force of air resistance

Komok [63]

Answer:

The approximate magnitude of the force of air resistance is 540 N.

Explanation:

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2 years ago

The river ______ pieces of ______ rock as it floats along.

kiruha [24]

Answer:

deposited, sedimentation

Explanation:

Rivers pick up pieces of sediments then deposit them elsewhere.

Hope I helped. :)

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2 years ago

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Which of the following temperature readings is the coldest?

djverab [1.8K]

Answer: K

Explanation:

From the temperature readings given, we should note that 0°F is thesame as 32°C. Therefore, 0°C is colder than 0°F.

We should note that at 0K which is written as K, it is the coolest and it is often called the absolute zero because at this degree, there can't be anything that's colder.

Therefore, the answer is K

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3 years ago