Suppose for an unexplained reason a star near earth started shrinking. at what stage is the gravitational force between earth and the star the greatest? stage 1 stage 2 stage 3 stage 4

Explain in physical terms how a microwave oven works. what would happen when you put a conductor in the microwave oven? explain.

Aball is thrown straight up into the air with a speed of 21 m/s. if the ball has a mass of 0.1 kg, how high does the ball go? acceleration due to gravity is g = 9.8 m/s^2. a. 22.5 m b. 20.0 m c. 25.0 m d. 17.5 m

Based on the concept of the wave-like nature of light, huygens' theory of light postulates that the more light was "bent" by a substance the slower it would move while traversing across that substance. a) deflection b) interference c) refraction d) resonance