Juan pesa 125 lb en la Tierra. Su peso en Kilogramos será . En la luna su peso es 1/6 parte de él que posee en  la Tierra debido a la gravedad.  ¿Cuál será su peso en libras  y en kilogramos en la luna? 1 kg = 2.2 libras Juan weighs 125 lb on Earth. Your weight in Kilograms will be . On the moon its weight is 1/6 of what it has on Earth due to gravity. What will its weight be in pounds and kilograms on the moon? 1 kg = 2.2 pounds

Suppose water is leaking from a tank through a circular hole of area ah at its bottom. when water leaks through a hole, friction and contraction of the stream near the hole reduce the volume of water leaving the tank per second to cah 2gh , where c (0 < c < 1) is an empirical constant. a tank in the form of a right-circular cone standing on end, vertex down, is leaking water through a circular hole in its bottom. (assume the removed apex of the cone is of negligible height and volume.) (a) suppose the tank is 20 feet high and has radius 8 feet and the circular hole has radius 2 inches. the differential equation governing the height h in feet of water leaking from a tank after t seconds is dh dt = − 5 6h3/2 . if the height of the water is initially 8 feet, how long will it take the tank to empty? (round your answer to two decimal places.)

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

At a certain instant after jumping from the airplane a, a skydiver b is in the position shown and has reached a terminal (constant) speed vb = 52 m/s. the airplane has the same constant speed va = 52 m/s, and after a period of level flight is just beginning to follow the circular path shown of radius ρa = 2330 m. (a) determine the velocity and acceleration of the airplane relative to the skydiver. (b) determine the time rate of change of the speed vr of the airplane and the radius of curvature ρr of its path, both as observed by the nonrotating skydiver.