What happens to potential energy when the object starts moving?

A projectile is launched on level ground. At the peak of its trajectory, it is 7.5 m high. It lands 10 m from where it was launched. At what angle was the projectile launched?

After the box comes to rest at position x1, a person starts pushing the box, giving it a speed v1. When the box reaches position x2 (where x2>x1), how much work Wp has the person done on the box

How are conduction, convention, and radiation different? Conduction transfers thermal energy by Convection transfers thermal energy by Radiation transfers thermal energy by A. electromagnetic waves B. the movement of molecules C.

What value is needed to create a motion diagram? a. position c. time interval b. velocity d. both a and c

Which resistors in the circuit must always have the same current?

In which of the following wave types is the particle motion perpendicular to wave motion? a: longitudinal wave b: p wave c: surface wave d: transverse wave

Convert 1.5 radian into milliradians.

Whats the core of electromagnet made of?

Ultraviolet light emits a total of 2.5 * 10^-17 J of light at a wavelength of 9.8 * 10^-7 m. How many photons does this correspond to?

3. A ray of light incident on one face of an equilateral glass prism is refracted in such a way that it emerges from the opposite surface at an angle of 900 to the normal. Calculate the i. angle of incidence. ii.