if v is equal to 3 * 10 raise to power 8 metre per second then H is equal to 6 * 10 raise to power - 7 m what is f​

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.

Astone is thrown into a pond. what happens to the amplitude of the resulting waves as they get farther from the point where the stone hit the water? explain.

Aman throws a football straight into the air. as it rises, it slows down. which type of energy is the football gaining?