Find the orbital velocity of an object that is 394 m from the center of the object. The object has a mass of 1 x 10 15 kg. Report your answer to 1 decimal place.

If a clock aboard a space ship traveling at 0.900 c of the speed of light relative to earth chimes once at the beginning of the hour and again when it reads one hour later, how much time would an observer on earth say elapsed between the two chimes?

Explain why the aperture of the spherical mirror should be small compared to the radius of curvature of the mirror.

Infrared radiation has wavelengths that are shorter than visible light is part of the visible light spectrum has wavelengths that are longer than visible light has the same wavelengths as ultraviolet radiation