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Explain in detail the power frequency heating methods (a) Resistance heating (b) Arc heating and DC welding Transformer (c) Carbon-arc welding (d) Metal arc welding.
Through a nuclear accident, 410m3 of emergency cooling water at 23C are injected into a reactor vessel where the reactor core is producing heat at the rate of 200 MW. If the water is allowed to boil at normal atmospheric pressure, how long will it ta..
A block with mass m1=2.00 kg rests on a frictionless table. It is connected with a light string over a pulley to a hanging block of mass m2=4.00 kg. What is the angular speed of the pulley at this time
How much net heat per second does the runner gain just from radiation if the air temperature is 40.0 oC (104 oF)? (Remember that he radiates out, but the environment radiates back in.) How much net heat per second does the runner gain just from radia..
An electric dipole consists of charges +2e and-2e separated by 0.60 nm. It is in an electric fieldof strength 4.5 x 106 N/C. Calculate the magnitudeof the torque on the dipole when the dipole momentis (a) parallelto, (b) perpendicular to,and (c) anti..
a 1383-kg car moving south at 11.2m/s is struck by a 1732-kgcar moving east at 31.3m/s. the cars are stuck together. how fast and in what direction do they move immediately after thecollision
which describes the electric potential and the electric field at a point due to a negatively charged particle?a the
In a certain cyclotron a proton moves in a circle of radius 0.500 m. The magnitude of the magnetic field is 1.10 T. What is the oscillator frequency (in Hz)?
Gas is contained in an 8.09 liter vessel at a temperature of 20.6oC and a pressure of 8.84 atm. Determine the number of moles of gas in the vessel. How many molecules are in the vessel
Compare and contrast the resistors and capacitors, separately combined, in a series and parallel settings.
Electrons in a photoelectric experiment emerge from an aluminum surface with a maximum kinetic energy of 1.3eV
A 68-kg base runner begins his slide into second base when he is moving at a speed of 3.9 m/s. How far does he slide
A 54.2 g block of copper whose temperature is 400 K is placed in an insulating box with a 120 g block of lead whose temperature is 200 K. What is the change in the entropy of the system
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