Part (a)  Calculate the Earth's average speed relative to the Sun in meters per second. Avg Speed of Earth = ______ Part (b)  What is the Earth's average velocity relative to the Sun over a period of one year in meters per second? v = ______

If an average-size man jumps from an airplane with an open parachute, his downward velocity t seconds into the fall is v(t) = 20(10.2) feet per second. (a) Use functional notation to express the velocity 3 seconds into the fall. Calculate it. ft per sec (b) Explain how the velocity increases with time. Include in your explanation the average rate of change from the beginning of the fall to the end of the first second and the average rate of " change from the fourth second to the fifth second of the fall. This answer has not been graded yet. (c)-Find the terminal velocity. ft per sec (d) Compare the time it takes to reach 99% of terminal velocity here with the 25 seconds it took a skydiver with his parachute closed to reach 99% of terminal velocity in Example 2.1. On the basis of the information we have, which would you expect to reach 99% of terminal velocity first, O feather feather or a cannonball? O cannonball Need Help? Read It

Tectonic plates are large segments of the Earth’s crust that move slowly. Suppose that one such plate has an average speed of 3.8 cm/yr.Assuming the plate maintains the given speed for 1.0 s, how far, in meters, does it move?  and what is its average speed in kilometers per million years?

A piece of wood moves at a velocity (measured in millimeters per year) of v(1) = r² – 3t – 4 where 1 = 1 would be the end of the first year. If a is the displacement of the wood in the first 5 years and b is the distance traveled in the first 5 years, what is a- b? None of the listed answers