Technician a says the charging system recharges the battery by supplying a constant and relatively low charge to the battery. technician b says the charging system works on the principles of magnetism to change mechanical energy into electrical energy. who is correct

Write the equation for momentum, first using symbols for the variables, then using words for the variables.

Need asap ‼️ 20 pts which gravitational force field diagram is drawn correctly? (answers in pictures below)

Abasketball star covers 2.65 m horizontally in a jump to dunk the ball. his motion through space can be modeled precisely as that of a particle at his center of mass. his center of mass is at elevation 1.02 m when he leaves the floor. it reaches a maximum height of 1.90 m above the floor and is at elevation 0.910 m when he touches down again. (a) determine his time of flight (his "hang time"). (b) determine his horizontal velocity at the instant of takeoff. (c) determine his vertical velocity at the instant of takeoff. (d) determine his takeoff angle. (e) for comparison, determine the hang time of a whitetail deer making a jump with center-of-mass elevations yi = 1.20 m, ymax = 2.45 m, and yf = 0.750 m.