A1.0-kg block and a 2.0-kg block are pressed together on a horizontal frictionless surface with a compressed very light spring between them. (the blocks are not attached to the spring.) the blocks are then released and the spring uncompresses. immediately after the blocks lose contact with the spring, which statement below is true? a. the magnitude of the momentum of the heavier block will be greater than the magnitude of the momentum of the lighter block. b. the lighter block will have more kinetic energy than the heavier block. c. both blocks will both have the same amount of kinetic energy. d. both blocks will have equal speeds. e. the heavier block will have more kinetic energy than the lighter block.

statement B is true

Explanation:

since same force is applied by the compressed spring on both masses so their rate of change of momenta must be same and since the lighter block has lesser mass so it must have greater velocity to have an equal change in momentum as of heavier mass.

By relation:

,

comparing momenta of above two equations we get

KElighter (2) = KEheavier (4)

KElighter = 2 KEheavier

answer: d. a cme increases the amount of energy in the solar wind

explanation:

coronal mass ejections, also called cmes, are large clouds of plasma and magnetic field that erupt from the sun. only when the cloud is aimed at earth will the cme hit earth and therefore cause impacts. high-speed solar wind streams come from areas on the sun known as coronal holes.

force is mass*acceleration.

we have a very small mass: 11.4*0.001 kg

if we want 0.035n of force, we need an acceleration:

0.035 = 11.4*0.001*a

a = 0.035/(11.4*0.001) m/s^2