A car of mass 1200 kg traveling westward at 30. m/s is slowed to a stop in a distance of 50. m by the car's brakes. What was the braking force? Select one:

A. 1,800,000 N B. 0.80 N C. 11,000 N D. 2000 N

In ntp, what stratum consists of atomic devices or gps clocks?

A stone with a mass of 10 kg is sitting on the ground, not moving. a) What is the weight of the stone? b) What is the normal force acting on the stone?

Which of the following could be considered a modern government responsibility? A. Governments are responsible for providing equal protection for all people. B. Governments are responsible for protecting due process of law. C.

Temperature measures: A. how much kinetic energy molecules have. B. the potential energy of molecules. C. how heat flows. D. the specific heat of a substance.

If a star is moving away from you how does it affect the wavelength of the light waves that reach you?

Suppose two waves collide and the temporary combined wave that results is smaller than the original waves. What term best describes this interaction? a. diffraction b. destructive interference c. standing wave formation d. constructive interference

Energy that transfers between substances because of a temperature difference between the substances is known as what?

You run 100 meters in 50 seconds. Calculate your speed, label with m/s which means meter per second.

A diagram that shows thermal energy being released by an object is called a blank

A piece of wood is floating in a tub of water. A second piece of wood rests on top of the first piece; it does NOT touch the water.