A watermelon launching slingshot can impart 30,000 J of kinetic energy to a 9 kilogram watermelon. How much elastic energy is stored up in the stretched rubber band to allow it to impart 30,000 J of kinetic energy to the watermelon?

A110-pound person pulls herself up 4.0 feet. this took her 2.5 seconds. how much power was developed? 0.13 hp 0.32 hp 2.0 hp 3.1 hp

Work = force × a. work b. energy c. distance d. momentum

Atriangle with equal sides of length 10 cm has -2.5-nc charged objects at each corner. part a determine the direction of the electrical force exerted on the object at the top corner due to the two objects at the horizontal base of the triangle. determine the direction of the electrical force exerted on the object at the top corner due to the two objects at the horizontal base of the triangle. horizontally rightward vertically downward vertically upward horizontally leftward