Tom d. spends his spare time running a bungee jumping service off the henley street bridge. he has a 153 ft long bungee cord (unstretched) that has a spring stiffness of 22 lb/ft. to test his bungee, he ties the bungee cord to the bridge railing, ties the other end to an unnamed person weighing 135 pounds, and then gently nudges the person off of the bridge. determine the professor's speed when the bungee cord starts to stretch.

Bob camina 200 m sur, luego trota 400 m suroeste, luego camina 200 m en una dirección 30? norte del este. a. dibuje una gráfica de los movimientos de bob. use una regla y transportador. b. use método gráfico y analíitico para hallar el desplazamiento total que bob recorrió. (magnitud y dirección) c. compare los resultados obtenidos por el método gráfico y analítico. (por ciento de diferencia).

Suppose that two tanks, 1 and 2, each with a large opening at the top, contain different liquids. a small hole is made in the side of each tank at the same depth 1.57 m below the liquid surface, but the hole in tank 2 has 2.49 times the cross-sectional area of the hole in tank 1. (a) what is the ratio ρ1/ρ2 of the densities of the liquids if the mass flow rate is the same for the two holes? (b) what is the ratio rv1/rv2 of the volume flow rates from the two tanks? (c) at one instant, the liquid in tank 1 is 14.9 cm above the hole. if the tanks are to have equal volume flow rates, what height above the hole must the liquid in tank 2 be just then?

Aman throws a football straight into the air. as it rises, it slows down. which type of energy is the football gaining?