L am so confused is it right?

D

Explanation:

First,mg＞fv: It does a download acceleration,and the speed of the object increase.

Second,mg=fv: it hasn't a acceleration.

you can think the f is a constant.

the electric field is a “force field” around a charged object that illustrates the direction the electric force would push an imaginary 

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