The measure of the amount of matter an object contains is called

What was Copernicus's model of the solar system?

A yellow ball with a mass of 2 kg is rolling across the floor at 3 mis. A red ball with a mass of 3 kg is rolling across th same floor at 3 mis.

Two teams of nine members each engage in a tug of war. Each of the first team's members has an average mass of 68 kg and exerts an average force of 1350 N horizontally.

The air is less dense at higher elevations, so skydivers reach a high terminal speed. The highest recorded speed for a skydiver was achieved in a jump from a height of 39,000 m. At this elevation, the density of the air is only 4.

2. A 4.5 kg model rocket is launched, expelling 152 grams of burned fuel from its exhaust at a speed of 786 m/s. What is the speed of the rocket after the fuel has burned? Ignore the forces of gravity and air resistance.

A book with a. mass of 1 kg is sliding to the left of a table. If the frictional force on the book is 5 N, calculate the book's acceleration. Is it speeding up or slowing down?

Blocks with masses of 3.0 kg, 4.0 kg, and 5.0 kg are lined up in a row on a frictionless table. All three are pushed forward by a 16 N force applied to the 3.0 kg block. How much force does the 4.0 kg block exert on the 5.0 kg block?

Objects falling through air experience a type of friction called a. terminal velocity. b. air resistance. c. inertia. d. rolling frictio

Between which pair of objects would the largest gravitational attraction be found

Which of these items are made of cells? Check all that apply