Is O2 classified as a compound?

According to the tide table below what time of day will the highest tide occur?

Question part points submissions used suppose that 2 j of work is needed to stretch a spring from its natural length of 26 cm to a length of 36 cm. (a) how much work is needed to stretch the spring from 28 cm to 32 cm? (round your answer to two decimal places.)

The amount of potential energy possessed by an elevated object is equal to what?