11. If the work function of the cathode metal is 3.0 eV, what is the least energy of the incident photon it could emit photoelectron?
a. 1.50 eV
b. 2.90 eV
c. 3.50 eV
d. 6.01 eV

The 5-kg cylinder is initially at rest when it is placed in contact with the wall b and the rotor at a. if the rotor always maintains a constant clockwise angular velocity v = 6 rad> s, determine the initial angular acceleration of the cylinder. the coefficient of kinetic friction at the contacting surfaces b and c is mk = 0.2.

The transfer of heat through the movement of a gas or liquid a. convection b. conduction c. radiation

Which of the following is the phase that results when the moon is on the opposite side of the earth from the sun? a. quarter moon b. crescent moon c. new moon d. full moon