A car travels at an average speed of 79.2 km/h for 1.00 h and then at an average speed of 43.2 km/h during a second hour. what is the car's average speed during the 2.00 h interval?

Jesse travels 3.0 meters east and then turns and travels 4.0 meters north. What distance did Jesse travel?

1. An object travels 15 m in 3 s. What is the speed of the car? 2. An object travels 20 m in 4 s heading south. What is the velocity of the object?

In a car, 75 percent of the chemical energy of gasoline is lost as thermal energy. If the gasoline contains 1,000 kilojoules of energy, how much of that energy is used to actually move the car? Record your answer in kilojoules.

How does the number of valence electrons affect the reactivity?

Enter the expression 2cos2 (θ) - 1, where θ is the lowercase Greek letter theta.

A 165g arrow is shot straight up into the air with a speed of 16m/s reaches a maximum height of 12.0612m. a. Find the initial kinetic energy. The acceleration of gravity is 9.8m/s^2. b. Find the potential energy at its highest position. c.

The amount of force needed to keep a 0.1kg basketball moving at a constant speed of 6 m/s on frictionless ice is ___ N

What three forms of kinetic energy can a polyatomic molecule have?

A parachutist bails out and freely falls 50 m. Then the parachute opens, and thereafter she deceler - ates at 2.0 m/s2. She reaches the ground with a speed of 3.0 m/s.

Why the weight of a body decreases with increases in distance from the earth's surface