Outside temperature over a day can be modeled as a sinusoidal function. Suppose you know the high temperature of 68 degrees occurs at 6 PM and the average temperature for the day is 60 degrees. Find the temperature, to the nearest degree, at 11 AM.

Which of the following correctly describes the early view of catastrophism?

If steel is more dense that lake water, why can a boat float

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.