In a game of football outdoors on a cold day, a player will begin to feel exhausted after using approximately 8.0 × 105 j of internal energy. (a) one player, dressed too lightly for the weather, has to leave the game after losing 6.8 × 105 j of heat. how much work has he done? (b) another player, wearing clothes that offer better protection against heat loss, is able to remain in the game long enough to do 2.4 × 105 j of work. what is the magnitude of the heat that he has lost?

A4.0-cm tall light bulb is placed a distance of 32.0 cm from a concave mirror having a focal length of 16.0 cm. determine the image distance

One hazard of space travel is debris left by previous missions. there are several thousand masses large enough to detect by radar orbiting the earth, but there are far greater numbers of very small masses such as flakes of paint. calculate the force exerted by a 0.110 mg chip of paint that strikes a space shuttle window at a relative speed of 5.00 ✕ 103 m/s and sticks, given the collision lasts 6.00 ✕ 10-8 s. such a collision chipped the window of the ill-fated challenger in june 1983, causing $50,000 of damage.

Can anyone plz answer any of these. even if its one it will