A 3.00 kg cart moving with a velocity of 20.0 m/s collides with a stationary 5.00 kg cart. After the collision, the second cart has a velocity of 14.0 m/s.

a) List the givens.

b) What is the momentum of each cart before the collision?

c) What is the total momentum before the collisions?

d) What is the momentum of each cart after the collision?

e) What is the magnitude and direction of the velocity of the first cart now?

Determine the amount of work done when a crane lifts a 100-n block form 2m above the ground to 6m above the ground

If the temperature were raised very high, classically what would we expect the heat capacity per object to be for this one-dimensional system? give a numerical value. chigh t = __ j/k/object (one reason for the discrepancy is that the high-temperature limit assumes that the number of oscillators is large (n > > 1), which is not the case in this tiny system.)

Utah's great salt lake has an average salinity seven times higher than that of the oceans. very few multicellular organisms live in this harsh environment. an example is the brine shrimp, which must devote a large portion of its metabolic energy to osmoregulation. these brine shrimp must available hint(s)utah's great salt lake has an average salinity seven times higher than that of the oceans. very few multicellular organisms live in this harsh environment. an example is the brine shrimp, which must devote a large portion of its metabolic energy to osmoregulation. these brine shrimp must pump water back into their cells to counter its loss due to osmosisactively pump water back out of their cells to counter its inflow due to osmosissynthesize membranes that are impermeable to substances that upset osmotic balanceactively pump salt back out of their cells to counter its inflow due to osmosis