18. Which of the following has the least momentum?
O
a 0.5 kg mass with a 1000 m/s velocity
O
a 1 kg mass with a 100 m/s velocity
O
a 10 kg mass with an 11 m/s velocity
O
a 100 kg mass with a 2 m/s velocity

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.)

Which best describes how fluids change as they travel through different portions of the convection currents? they change to solids at the outer portion of the convection currents. they change to solids at the inner portion of the convection currents. they become more dense at the outer portion of the convection currents. they become more dense at the inner portion of the convection currents

Directions: count the number of atoms. ar co2 na3po4 so3 nac2h3o2