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problem consider two spin systems a and a placed in an external field h system a consist of n weakly interacting
kyoto box is a simple solar oven used extensively in africa assuming a square box with four reflectors of l 75 cm on a
steam flows into a reducing valve with a pressure of 1400kpa dryness fraction 98 it leaves the valve with a pressure of
three thermometers are placed in a closet insulated box and are allowed to reach thermal equilibrium one is calibrated
1 spy balloon is to be constructed of a material with a mass of 05kg it will be filled with helium and must be able to
calculate the entropy change for each of the followinga 10g of steam at l00degc and a pressure of one atmosphere
the molar specific heat of many materials at low temperatures is found to obey the debye law cv attheta3 where a is a
the heat capacity is defined as the amount of energy required to change the temperature of an object the specific heat
1 on planet tehar the free fall acceleration is the same as that on earth but there is also strong downward electric
unix systems programming writing perl scriptsconvert a unix shell script user maintenance into a perl script this perl
a patient is placed along the please see attached field of an mri machine the gyromagnetic ratio for protons is please
a vessel holding some liquid is placed in a vacuum chamber that is constantly pumped gas leaks from the vessel into the
1 calculate the average kinetic energy of the n2 molecules in a sample of n2 gas at 273 k and 546 k2 consider separate
a cylinder contains 10 kg of gas at a pressure of 107 n m2assuming the temperature of the gas to be constant calculate
1 according to the kinetic-molecular theory molecules of different gases at the same temperature always have the same a
i have test data for three heat shields and am looking for an explanation one that can be supported with math theory
consider a building whose annual air-conditioning load is estimated to be 120000 kwh in an area where the unit cost of
draw a flashlight bulb and show where the current usually enters and leavesdraw a d-cell and label its two terminals
1 the resistance of a superconducting material drops essentially to zero rather suddenly whena the sample is heated
1 if the speed of sound is 350 ms and the wavelength is 10 cm what is the frequency2 two otherwise identical wires are
1 which is a correct statementa visible light has a frequency of 10 to the power of 14 hzb gamma rays have a frequency
1a what is the purpose of the lightning rod and how does it workb why is the car interior a safe place to be during a
1 in alternating current the motion of the chargesa continuously changes in the forward and reverse directionsb is
1 if a lamp is measured to have a resistance of 45 ohm when it operates at a power of 80 w what is the current in the
1 a charge of 1020 c was passed through a wire in 55 min what was the average electric current during that interval2