9. A heavy object was dropped from some distance above the ground. When it reached the ground,
it had a speed of 10.0 m/s. From what height
was the object dropped?

h = 5.10 m

Explanation:

v² = 2gh

h = v²/2g

h = 10.0² / (2(9.81))

h = 5.10 m

asthenosphere and convection

find the surface area of the sphere to the nearest square unit. use a calculator.

a. 254 in.2

b. 64 in.2

c. 127 in.2

d. 1,018 in.2