A race car has a mass of 710kg. It starts from rest and travels 40.0m is 3.0s. The car is uniformly accelerated during this time. What bet force is acting on the car?

A man weighing 750 n and a woman weighing 500 n have the same momentum. what is the ratio of the man's kinetic energy km to that of the woman kw?

A disturbance that transfers energy from place to place is called a

Describe a car's velocity as it goes around a track at a constant speed

In which of the following situations is an object not accelerating? A. An airplane changes course at a constant speed. B. A water-skier gains speed in a straight line as she stands up. C. A man walks in a straight line without changing his speed. D.

A bullet of mass m = 10 gram strikes a ballistic pendulum of mass m=2.0 kg. the center of mass of the pendulum rises a vertical distance of h=12 cm. assuming the bullet remains embedded in the pendulum, calculate its initial speed.

Some lactic acid in the muscles dissipates during.

When two waves undergo complete, constructive interference, which of the following increases? A. speed B. amplitude C. wavelength D. frequency

Pressure = Force Area The formula above shows how pressure relates to force and area. For example, the pressure exerted by a fluid is equal to the force of the fluid divided by the area over which the force is applied.

1. Most waves are caused by vibrations. What motion in a transmitting antenna causes the vibrations that produce radio waves? 2. Name two common household appliances that produce electromagnetic waves other than radio waves.

A 3.70 kg block moving 2.09 m/s right hits a 2.42 kg block moving 3.92 m/s left. Find the total momentum of the system.