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Two coherent sources of sound, A and B, emit continuous harmonic sound waves of the same frequency f and wavelength lambda.
This corresponds to assuming that the proton mass is effectively in?nite. More correctly. we should picture the proton and electron.
Consider n moles of a Van der Waals gas. Show that (dU/dV)_T = n^2a/V^2. Hence show that the internal energy is U.
Picture a long row of standing dominos, one a little behind the other so that knocking over the first will knock over the second and so on.
Consider a deformed prolate nuclear core consisting of an even number of neutrons and one even number of protons outside of this core.
For the following processes, state whether the driving force is the first or second law of thermodynamics.
Three solid spheres of lead, each of mass 9.8 kg, are located at three corners of a square with side lengths of 50 cm.
A crate of fruit with a mass of 35.0 kg and a specific heat capacity of 3800 J/kg.K slides 8.30m down a ramp inclined at an angle of 40.0 degrees.
In the table below is the thermodynamic data for ammonia (http://en.wikipedia.org/wiki/Ammonia_%28data_page%29) use this data to solve the following problems
Compute the allowed wave function for stationary states of this system with those for a normal harmonic oscillator having the same values of m and C.
Draw the free body diagram of the lower block "as seen" from the frame of reference of the table (or ground).
Write down an expression representing the total mechanical energy of the system at the same instant.
A sample of an ideal gas has the following initial conditions V=15L, T=250K and P=1atm. It is compressed isothermally until the change in entropy is -5J/K
If the mass is displaced by 10 mm from its equilibrium position and released, for the resulting vibration, calculate:
Consider a system consisting of two objects A and B, when A and B have initial temperature T_A and T_B, and heat capacities C_VA and C_VB independent
Define the laws of thermodynamics. Include an example to support your definition.
A tube 4.4 mm in diameter is run through the stopper of a sealed 8-liter container. The tube outside the container forms a U, then runs in a straight line
Show that the pressure exerted by a Fermi gas at absolute zero is
Consider a building whose annual air-conditioning load is estimated to be 120,000 kWh in an area where the unit cost of electricity is $.10/kWh.
The heating and airflow ducts to and from the room are circular 0.30m in diameter, the room is 3mx4.5x6m and the air flow needs to be changed every 12 minutes
Consider the system of 20g (0.1 mole) sample of liquid mercury at 1bar of pressure in an open beaker. Given the data below calculate the change in entropy
The speed of sound in ether (25 deg C, 1 atm) is 976 m/s. What is the wavelength in ether produced by a tuning fork oscillating at 1000 Hz?
A coil of 100 turns is penetrated by a flux of 0.050 Wb in 0.021 s. Determine the numerical value of the average induced emf.
Consider a sample of CaO(s) at 298K and 1 atm. Does the Gibbs energy of the sample increase, decrease of remain the same
A copper piece of mass 10g is suspended by a vertical spring. The spring elongates 1cm over its natural length to keep the piece in equilibrium.