1. True or False: Since the 1990s the USA has been working with Russia and other countries to reduce the amount of nuclear warheads worldwide.

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?

True or false: the revolution of the earth creates day and night as it rotates around the sun

How would a small bar magnet be oriented when placed at position x?