What is heat?

describe how you could made a sound wave have a higher pitch.

describe how you could make a sound wave have a higher volume.

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.

Where do magnetic lines of force enter earth?

If an electric circuit is not grounded it is best to reach out and touch it to provide the ground a. true or b. false