An electric wheel chair is designed to run on a single 12-v battery rated to provide 100 ampere-hours. how much energy is stored in this battery?

One form of energy can be another type of energy. a. created to form b. transformed into c. destroyed and then created to form

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.

Scientific models are based on current knowledge, which can limit their effectiveness when new discoveries are made.