PHY 206 Midterm: PHY 207 UMiami Fall05 2
Document Summary
Speed of propagation of a wave on a string: Q = n cv t dw = p dv p v = n r t e = ds = An engine operates by taking an unknown number of moles of a diatomic ideal gas through the cycle shown in the figure. You want to measure the mass m of an object, but you don"t have a scale. You therefore decide to attach the object to a string of mass ms and length l, as in the figure, and to generate standing waves on the string (pay attention to the orientation of the axes on the figure!!). The wave is given standing wave that describes the function. A quantity of n moles of an ideal gas with molar heat capacity at constant volume cv is taken from state a, with temperature ta to state b, with temperature tb and same pressure of state a (see figure).
