Solar radiation is made up of light energy. light energy can be separated by wavelength and frequency into the electromagnetic spectrum.
which type of light energy found in solar radiation is most likely to reach earth's surface?
a) gamma rays
b) radio waves
c) visible light
d) microwaves

Agas is contained in a vertical, frictionless piston–cylinder device. the piston has a mass of 3.2 kg and a cross-sectional area of 35 cm2. a compressed spring above the piston exerts a force of 190 n on the piston. if the atmospheric pressure is 95 kpa, determine the pressure inside the cylinder.

An object of dimensions 50 cm x 40 cm x 0.20 cm has a mass 60g. find its density in g/cm3 and kg/ m3

What is the energy of a photon of ultraviolet radiation with a frequency of 4.4 × 1015 hz? planck’s constant is 6.63 × 10–34