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frozen [14]
3 years ago
7

Which processes cause rocks to be exposed at Earth's surface? SC.7..6.2

Physics
1 answer:
seropon [69]3 years ago
5 0

Answer:

weathering

Explanation:

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A car starts from rest and after 10 seconds is traveling at 20 m/s. Assuming that it continues to accelerate at the same rate it
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Assuming that it continues to accelerate at the same rate it will take another 10 seconds to reach 40 m/s.

Answer:

Explanation:

Since the first question states that there is a change in the velocity from rest to 20 m/s in 10 seconds time interval. So the acceleration experienced by the car during this 10 seconds should be determined first as follows:

Acceleration = (final velocity-initial velocity)/Time

Acceleration = (20-0)/10 = 2 m/s².

So this means the car is traveling with an acceleration of 2 m/s².

As it is stated that the car continues to move with same acceleration, then in the second case, the acceleration is fixed as 2 m/s², initial velocity as 20 m/s and final velocity as 40 m/s. So the time taken for the car to reach this velocity with the constant acceleration value will be as follows:

Time = Change in velocity/Acceleration

Time = (40-20)/2 = 20/2=10 s

So again in another 10 seconds by the car to reach 40 m/s from 20 m/s. Similarly the car will take a total of 20 seconds to reach from rest to 40 m/s value for velocity.

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3 years ago
How does a flood change the land
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Flood can cause erosion, which is the process of wearing down, and the land can be changed.
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What is the momentum of a child and a bicycle if the total mass of th
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2 years ago
If the tension in a rope is increased, what will happen to the speed of a wave traveling through the rope?
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