How many substances/elements are on the periodic table?

Suppose a 78 kg person is bouncing on a bathroom scale which has a force constant of 1.5 * 106 n/m. 50% part (a) what is the maximum velocity of the person, in meters per second, if the amplitude of the bounce is 0.115 cm?

What is energy coupling?

Is an engine-activated booster unit that reduces the effort required to apply the hydraulic brakes

Mr. Roberts drives his car away from his house at a constant speed. Which of the following represents speed?

Consider the train car described in the previous part. Another experiment is conducted in it: A net force of 20N is applied to an object of mass 5kg.

Explain the relationship between motion and frame of reference.

Two students are looking at a brightly lit full Moon, illuminated by the reflected light from the Sun. Consider thefollowing discussion between the two students about what the spectrum of moonlight would look like.

When performing a battery load test, what should the load be set to?

If you push on a wall of a building what will happen

A conductor, with outer surface labelled a, contains a cavity, inner surface b. In this cavity there is a conducting sphere of radius r, and surface c. The sphere carries a charge of 1 C, while the conductor a charge of 2 C.