A rotating wheel requires 2. 98-s to rotate through 37. 0 revolutions. Its angular speed at the end of the 2. 98-s interval is 97. 2 rad/s. What is the constant angular acceleration of the wheel?.

The man of mass m1 and the woman of mass m2 are standing on opposite ends of the platform of mass m0 which moves with negligible friction and is initially at rest with s = 0. the man and woman begin to approach each other. derive an expression for the displacement s of the platform when the two meet in terms of the displacement x1 of the man relative to the platform.

Petroleum contains energy. a. light b. kinetic c. chemical d. mechanical

When a lead acid car battery is recharged by the alternator, it acts essentially as an electrolytic cell in which solid lead(ii) sulfate is reduced to lead at the cathode and oxidized to solid lead(ii) oxide at the anode. suppose a current of is fed into a car battery for seconds. calculate the mass of lead deposited on the cathode of the battery.