he Earth has a radius of 6370 km. A satellite is orbiting near the surface of the Earth (just above the atmosphere) at a constant speed. How much time (in minutes) does it need to finish a revolution around the Earth

Which of the following is the best name for mgcl2

Ultraviolet radiation is dangerous because it has a high enough energy to damage skin cells. what is the best explanation of the relationship between wavelength and wave energy? a) wave energy is related only to frequency, not wavelength. b) longer wavelengths have lower frequencies but higher energy. c) the shorter the wavelength, the lower the frequency and the higher the energy. d) the shorter the wavelength, the higher the frequency and the higher the energy.

Acircuit is built based on this circuit diagram what is the equivalent resistance of the circuit? a.0.61 b.1.6 c.7.5 d.18