Ihave a few questions. how would density change if volume is not calculated correctly?
#2. a golf pall and ping pong ball are almost the same volume. however, a golf ball has much more mass. which ball is denser?

Three point charges, two positive and one negative, each having a magnitude of 20 μc are placed at the vertices of an equilateral triangle (30 cm on a side). what is the magnitude of the electrostatic force on the negative charge

Why don't you see your reflection in water with waves or repples

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.