In science, when describing an object, what does volume mean?

a. how much mass of the object exists on each cm^3

b. how loud a sound the object is making

c. how much space in three dimensions the object occupies

d. how large the surface of the object is

An open cart is moving along a straight frictionless horizontal track. when rain starts falling vertically into the cart, what happens to the speed of the cart?

Aplayground merry-go-round has a radius of 4.6 m and a moment of inertia of 200 kg-m2 and turns with negligible friction about a vertical axle through its center. a child applies a 26.0 n force tangentially to the edge of the merry-go-round for 15.0 seconds. if the merry-go-round is initially at rest, how much work did the child do on the merry-go-round?

The mantle is made up of which structural zones?