Compare to visible light, the wavelength of x-rays is ___ and the frequency is ___.

Two people try to lift a heavy box. Jack pulls upward with a 100-newton force. Jill pulls upward with a 50-newton force, but neither person moves the box. Compare the amount of work done on the box by Jack and Jill.

The amount of power has decreased. This is most likely the result of less work being done over a longer period of time. less work being done over a shorter period of time. the same amount of work being done over a longer period of time.

Which device converts electrical energy into kinetic energy? an electric generator an electric motor a step-down transformer a step-up transformer

What happens to the speed of the particles if the size of the particle is increased

Two carts with masses of 17.5 kg and 1.5 kg, respectively, move in opposite directions on a frictionless horizontal track with speeds of 8.0 m/s and 4.0 m/s, respectively. The carts stick together after colliding head-on.

Which car has the most kinetic energy? A car of mass 1500 kg with speed 5 m/s or A car of mass 1300 kg with speed 3 m/s or a car of mass 1200 kg with speed 2 m/s or a car mass 1400 kg with speed 4 m/s

A 500 kg table with 4 legs rests on solid flat ground. I place 3 books on the center of the table with masses of 10 kg, 20 kg and 30 kg respectively. What is the normal force between the ground and one leg of the table?

Fluorine-21 has a half-life of approximately 5 seconds. What percentage of the original nuclei would remain after 20 seconds

Which of these is an example of a totalitarian regime A.) Canada under prime minister Trudeau's rule B.) the Soviet Union under Josef lo

Since 1 pound = 4.45 newton, what is your earth weight in newtons?