Physics, 28.09.2019 19:30, mykamorrow
Newtonian mechanics, one can derive the following expression for the speed of sound in an elastic medium: vs = vb, where b is the bulk modulus, defined as b = - v. b is the change in pressure per fractional change in volume. [the inverse of the bulk modulus is called the compressibility.] a) the value of the bulk modulus depends on whether conditions are isothermal or adiabatic. compute b for an ideal gas for both isothermal and adiabatic conditions. give your answers in terms of pressure p and the constant y = 172. b) the constant y for an idea gas can be determined experimentally from the heat capacities of the gas. derive a formula for y using both cp and cv for an ideal gas. c) argue that for computing the speed of sound, it is the adiabatic b (not the isothermal b) that is the correct one to use. d) using the formula vs = vb, derive an expression for the speed of sound in air in terms of the temperature t and the average molecular mass m. compare this with the formula for the rms speed of molecules in air. compute the numerical value of the speed of sound in air at room temperature.
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Physics, 21.06.2019 23:00, micahwilkerson9495
Pls pls pls pls ! describe, in your own words, how you found the epicenter of the earthquake.
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Physics, 21.06.2019 23:40, lekylawhite16
What is meant by the statement" the melting poin of glycerine is 13 degree celsius
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Physics, 22.06.2019 11:00, chaycebell6662
A2.00-m long piano wire with a mass per unit length of 12.0 g/m is under a tension of 8.00 kn. what is the frequency of the fundamental mode of vibration of this wire?
Answers: 3
Physics, 22.06.2019 12:10, malikbryant2002
Consider a one meter long horizontal pipe with a constant 100 cm^2 cross sectional area. water flows rightward into the pipe at x = 0 with flow velocity 02m/sec at every point within the pipe intake area. at x=1, the rightward flow rate is 0.192 m/sec. assume the water is a conserved quantity in the pipe, so there must be a leak (a sink) somewhere in the pipe. 1. compute net volumetric flow of the source if the system to be in equilibrium. 2. now assume the pipe in the problem has no leaks. compute the net volumetric rate of change for the system.
Answers: 3
Newtonian mechanics, one can derive the following expression for the speed of sound in an elastic me...
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