Which describes Einstein's general theory of relativity? Check all that apply. oIt replaced the special theory of relativity.
oIt applies to accelerating objects.
oIt applies to objects in uniform motion.
o It applies to objects in a gravitational field.
o It is an extension of the special theory of relativity.
oIt applies to objects in free fall.

Boxing gloves are padded to lessen the force of a blow. (a) calculate the force exerted by a boxing glove on an opponent’s face, if the glove and face compress 7.50 cm during a blow in which the 7.00-kg arm and glove are brought to rest from an initial speed of 10.0 m/s. (b) calculate the force exerted by an identical blow in the gory old days when no gloves were used and the knuckles and face would compress only 2.00 cm. (c) discuss the magnitude of the force with glove on. does it seem high enough to cause damage even though it is lower than the force with no glove?