Answer:
mass of an object
Explanation:
because mass of an object changes it’s force
Answer:
is the rock's speed.
Explanation:
Momentum is defined as motion possessed by the moving body's mass. Mathematically it a product of mas and velocity of the body.

Given : Mass of rock = m = 1.45 kg
Velocity of the rock = v
Momentum of the rock = P =


is the rock's speed.
It is a chemical change and a physical change
Vaporization of a sample of liquid is a phase transition from the liquid phase to the gas phase.
the earth exerts a gravitational force