In the case of a swinging pendulum, potential energy is greatest when

a. the pendulum ball is at its highest points away from a surface.

b. the pendulum ball is at its lowest point closest to a surface.

c. the pendulum ball is midway between its highest and lowest points from the surface.

d. none of the above

Starting with only the balmer series light (visible light), how could we ensure that the solar panels generate a current that mark can use for his power station? a)by gradually increasing the brightness (amount) of light that we shine on it. b)by gradually increasing the frequency of the light we shine on it. c)by gradually increasing the wavelength of the light that we shine on it.

When using the scientist method, which step comes last?

The pilot of a helicopter hovers at an altitude of 1200 feet over a park. the angle of depression to the base of a statue is 17 degrees. the angle of depression to the nearest park exit, in line with the statue, is 14 degrees. to the nearest foot, what is the distance from the statue to the exit?