Tom has a mass of 50,000 g and runs up a flight of stairs 4 m high in 12.5 seconds. Calculate Tom’s power. (g = 10 m/s2)

An implanted pacemaker supplies the heart with 72 pulses per minute, each pulse providing 6.0 v for 0.65 ms. the resistance of the heart muscle between the pacemaker’s electrodes is 550 ω. find (a) the current that flows during a pulse, (b) the energy delivered in one pulse, and (c) the average power supplied by the pacemaker.

What type of electromagnetic wave is used in security pens? a. x-rays c. microwaves b. visible light d. ultraviolet radiation select the best answer from the choices provided

Calculate the mass of an object that has a momentum of 100kg x m/sec and velocity of 4 m/sec