What force is supplied by a jet's engines when 7 x 106 Joules of work is required to move the plane down a 450 meter runway?

What term refers to the measure of how much matter is in an object? a. gravity b. mass c. force d. weight?

A clear echo is heard within 0.2 seconds when a person shouts by sitting at the ridge of a hill. Calculate the velocity of sound in air. The distance between the person and the hill is 33.2 m

How does destructive interference affect the amplitude of a wave?

A body moving with a velocity of 20m/s begins to accelerate at 3 m/s 2. How far does the body move in 3 seconds

How many kilometers per liter will a car obtain if its engine is 25percent efficient and it encounters and average force of 1000newtons? Assume the energy content of gasoline is 40,000,000 joulesper liter (J/L).

Which term identifies the dark smooth areas on the surface of the moon? craters terrae maria regolith

1. work is a transfer of 2. a small 20-killogram canoe is floating downriver at a speed of 2 m/s. what is the caanoes kinetic energy?

If you are asked to determine an objects speed, what information must you have? A: distance and period of time B: distance and direction C: period of time and direction D: distance and change in position

What is the kinetic energy of a 1150 kg sports car traveling down the road with a speed of 29 m/s?

3. A 2,000-kilogram railroad car moving at 5 m/sec to the east collides with a 6,000-kilogram railroad car moving at 3 m/sec to the west. If the cars couple together, what is their velocity after the collision?