By what factor does on axis potential at z eequal r increase
A ring has a radius R and charge Q. the ring is shrunk to a new radius 1/2 R with no change in its charge. by what factor does on axis potential at z = R increase?
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The COP of the refrigerator is 2.40, and the power input is 360 W. Find the time required, in minutes, to cool the water to 10 degrees C.
A cubic crystal with interatomic spacing of 0.24 nm is used to select gamma rays of energy 100 keV from a radioactive source containing a continuum of energies. If the incident beam is normal to the crystal, at what angle do the 100 keV gamma ray
A close rigid tanks with a volume of 2 m3 contain hydrogen gas initially at 320 K and 180 kPa. Heat transfer from a reservoir at 500 K takes place until the gas temperature reaches 400 K.
The working fluid at 23 degrees C rejects 100 kJ/min as heat transfer from the engine. Determine the power output of the engine, in kilowatts.
The cylinder (with a friction-less piston of 2-kg mass and a radius of 5 cm) initially at 1 liter in volume and is filled with a given gas at 200 K and 105 Pa. It is perfectly heat insulated and is in a laboratory at sea level.
What are individual cutting tool with a number of cutting edges. they are useally held on the tool shank with various locking mechanisms?
At a certain instant, a valve is opened and mass flows from the bottle at ?m/?t = 0.105 lbm/s. Find the rate of change of temperature in the bottle at this instant.
A nitrogen line, 300 K and 0.5 Mpa, shown in the figure, is connected to a turbine that exhausts to a closed initially empty tank of 50m3. The turbine operates to a tank pressure of 0.5 Mpa, at which point the temperature is 250K.
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