How fast would a 106-kg object have to be moving at this height to have zero energy?

What happens to the light rays when they hit the specimen?

Determine the maximum r-value of the polar equation r =3+3 cos 0

Nacidified solution was electrolyzed using copper electrodes. a constant current of 1.18 a caused the anode to lose 0.584 g after 1.52 ✕ 103 s. given that the charge of an electron is 1.6022 ✕ 10−19 c, calculate avogadro's number. assume that copper is oxidized to cu2+ ions.