.Which of the following best describes the momentum of a 1000 kg train rolling to the right at 3 m/s ? a) The train has 3000 kg*m/s of momentum

b) The train has 3333.33 kg*m/s of momentum

c) The train has 3000 kg*m/s of momentum to the right

d) The train has 3000 kg*m/s of momentum to the left

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?

Matter is needed to transfer thermal energy bya. conductionb. convectionc. radiation d. both a & b.

Explain why you think this diagram shows what happened to the carbon in the biodome.