A 154 kg bear runs up a hill that has a slope of 15 degrees. The dude travels 1200 m in 125 seconds. A) How much work did the bear do on itself? B.) How much power did the bear develop?

Which statements did both aristotle and ptolemy assume? check all that apply.

How much hereditary information is contain in a human sex cell

Diego is trying to lift a piano to the second floor of his house. diego uses a pulley system and gives a big lift to the piano. the piano moves upward, then stops, and then it starts to fall to the ground. which list best describes the forces on the piano in the proper order? a. positive force, balanced force, negative force b. negative force, balanced force, positive force c. positive force, unbalanced force, negative force d. negative force, unbalanced force, positive force