Use the graph of speed versus time to answer the questions about acceleration. a) which of the cars is speeding up? b) which of the cars is slowing down? c) which of the cars is maintaining a constant speed? (these are questions)

In the given graph, car A is speeding up, Car C is slowing down and car B is maintaining a constant speed with time.

From the given graph we can deduce the following about the change in the speed of the cars with time.

Thus, we can conclude the following from the given graph, car A is speeding up, Car C is slowing down and car B is maintaining a constant speed with time.

Learn more here:link

The height of a point on the graph corresponds to a speed on the y-axis.

-- As time goes on, the line for Car-A gets higher. Car-A is speeding up.

-- As time goes on, the line for Car-C gets lower. Car-C is slowing down.

-- As time goes on, the height of the line for Car-B doesn't change. Car-B is maintaining a constant speed.

answer: the metamorphic rocks are formed when they are exposed to high pressure and high temperatures. this happens when one of the earth's plates comes in contact with the other plate by traveling in opposite directions, straight into each other or slipping under one another. the friction that is caused by this activity results in   melting of rocks and when it cools they are known as metamorphic rocks. this process needs a controlled amount of pressure and temperature otherwise it may turn into magma.