A2.0 kg book is lying on a 0.75-m-high table. you pick it up and place it on a bookshelf 2.3 m above the floor. during this process,

The gravitational potential energy gained by the book is 30.4 J

Explanation:

The change in gravitational potential energy of an object is given by

where

m is the mass of the object

g is the acceleration of gravity

is the change in height of the object

For the book in this problem,

m = 2.0 kg

g = 9.8 m/s^2

Substituting into the equation, we find

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