Which of the following is true of the March equinox? Question 21 options: The suns direct rays strike perpendicular at the Tropic of Capricorn (23.5° S). At all latitudes, day and night are of equal length. Moving south of the equator, the day length increases, while moving north of the equator the day length decreases.

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.)

How does the amount of energy required to hold each proton and neutron in the nucleus compare to the energy released when they are removed?

The space between two 15-in.-long concentric cylinders is filled with glycerin (viscosity = 8.5 × 10-3 lb·s/ft2). the inner cylinder has a radius of 1 in. and the gap width between cylinders is 0.1 in. determine (a) the torque and (b) the power required to rotate the inner cylinder at 180 rev/min. the outer cylinder is fixed. assume the velocity distribution in the gap to be linear.