17. a car traveling initially at 5.5 mis accelerates at a rate of 1.2 m/s's for 23 seconds. what is its velocity at the
end of the acceleration?

33.1 m/s

Explanation:

where v is final velocity of the car   is initial velocity of the car, a is acceleration due to gravity and t is time taken by the car. The final velocity is the velocity at the end of acceleration.

In this question, = =5.5m/s, t=23 seconds, a=

Substituting the above figures into the equation we obtain

v=5.5+(1.2*23)=33.1 m/s

Therefore, the velocity of the car at the end is 33.1m/s

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.