Calculate the kinetic energy in joules of a 1,500 kg car that is moving at a speed of 42 km/h

The discovery that the universe appears to be expanding led to a widely accepted theory called a.) the big bang theory b.) the doppler effect c.) hubble’s law d.) solar nebular theory e.) the seyfert theory

Suppose that the half-life of an element is 1000 years. how many half-lives will it take before one-eighth of the original sample remains? 8 125 12.5 3

Which of the following is not associated with mechanical energy? a. motion b. position c. density d. shape