State physical quantity represented by the gradient of a displacement - time graph

The difference between a red shift and a blue shift has to do with wavelength frequency. t or f

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.

Often called simply "velocity," this is the velocity of an object at a particular moment in time.