Determine rms value of the electric field of the radiation
The microwave radiation left over from the Big Bang explosion of the universe has an average energy density of 3.88 × 10^(-14) J/m3. What is the rms value of the electric field of this radiation?
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A capacitor with an initial potential difference of125V is discharged through a resistor when a switch between them is closed att= 0. Att=5.0s, the potential difference across the capacitor is1.80V. (a) What is the time constant of the circuit?
The U.S. Dept of Treasury claims that it mints quarters to yield a mean weight of 5.670 g. Is this claim consistent with the convidence interval you just calculated? Explain your conclusion and account for any possible discrepancies. Conclusion:
Draw a schematic of the ideal Rankine cycle and the corresponding T-s diagram. Determine the R-134a mass flow rate needed for this cycle to produce 750 kW of power.
It has been suggested that rotating cylinders about 12 mi long and 4.6 mi in diameter be placed in space and used as colonies. What angular speed must such a cylinder have so that the centripetal acceleration at its surface equals the free-fall ac
What is the speed of the block when it has moved a distance of 0.0200 from its initial position? (At this point the spring is compressed 0.0180 .)
A heat engine absorbes 25 MW from a 400 C combustion chamber and rejects 15 MW to the atmosphere at 30 C. Find the actual and Carnot thermal efficiencies of this engine.
Calculate (a) the power required by the compressor in kW (b) the isentropic compressor efficiency (c) the rate of heat transferred to the interior of the house in kW.
Find the mass flow rate that can generate 85 MW of power and determine the thermal efficiency of your system. The condenser is cooled by running the cooling water from a nearby lake through the tubes of the condenser.
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