What is the name of the force with which earth pulls everything towards itself?

 

 

A) Resistance B) Gravity C) Thrust D) Air pressure

The force of ________ is the force at which the earth attracts another object towards itself.

A raindrop of mass 3.35 × 10^-5 kg falls vertically at a constant speed under the influence of gravity and air resistance. As it falls 100-in, what is work (lone on the raindrop) (a) by the gravitational force and (b) by air resistance?

Assume a hole is drilled through the center of the Earth. It can be shown that an object of the mass m at a distance r from the center of the Earth is pulled toward the center only by the material in the shaded portion of Figure P13.73. Assume Earth has a uniform density ρ. Write down Newton's law of gravitation for an object at a distance r from the center of the Earth and show that the force on it is of the form of Hooke's law, F= -kr, with an effective force constant of k = (4/3) πρGm, where G is the gravitational constant.