Justin kicked a football straight up during a game. Assuming all energy is conserved, at what height did the 2.6 kg ball travel id it had a velocity of 6 m/s

What is the frequency of a light wave with a wavelength of 620nm

Apackage of supplies is dropped from a plane, and one second later a second package is dropped. neglecting air resistance, the relative velocity of the 1st package viewed from the second will 56) a) increase. b) be constant. c) be zero. d) depend upon their weight. e) decrease

In a given chemical reaction, the energy of the products is greater than the energy of the reactants. which statement is true for this reaction?