What is the period of a sound wave having a
frequency of 340. hertz?
(1) 3.40 × 10^2 s (3) 9.73 × 10^−1 s
(2) 1.02 × 10^0 s (4) 2.94 × 10^−3 s

Molten iron fills a mould, which has a volume of 200 cm cubed. calculate the volume when the iron cools and solidifies. molten iron has a density of 7.0g/cm cubed. in its solid state, iron has a density of 8.0g/cm cubed.

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.)

If the ama of the inclined plane below is 2, calculate the ima and efficiency. ima = efficiency =