Which of the following is true? a. if an equal force is applied to two objects, the object with greater mass will accelerate more. b. acceleration takes place when an unbalanced force acts upon an object. c. when an object is traveling at constant speed and direction, it is accelerating. d. the greater the force that is applied to an object, the less it will accelerate.

Adiver in midair has an angular velocity of 6.0 rad/s and a moment of inertia of 1.2 kg·m2. he then pulls is arms and legs into a tuck position and his angular velocity increases to 12 rad/s. the net external torque acting on the diver is zero. what is his moment of inertia in the tuck position?

Aparticle of mass m is placed in a one-dimensional box of length l. the box is so small that the particle’s motion is relativistic, so that e p2/2m is not valid. (a) derive an expression for the energy levels of the particle using the relativistic energy–momentum relation and the quantization of momentum that derives from connement. (b) if the particle is an electron in a box of length l 1.00 1012 m, nd its lowest possible kinetic energy. by what percent is the nonrelativistic formula for the energy in error?

Calculate a pendulums frequency of oscillation (in hz) if the pendulum completes one cycle in 0.5s.