Was the Copernican model more accurate than the Ptolemaic model?
a . Yes b. No

Calculate the mass of an object that has a momentum of 100kg x m/sec and velocity of 4 m/sec

The air that we breath is made mostly of which gaseous molecule

Amass weighing 24 pounds, attached to the end of a spring, stretches it 4 inches. initially, the mass is released from rest from a point 8 inches below the equilibrium position. find the equation of motion. (use g = 32 ft/s2 for the acceleration due to gravity.)