Evaluate the progress and describe the results
Nick has a goal to pay his credit card balance in full by June 30. When he first wrote his goal in December, his balance was 2,500. It is now April, and he cAn pay all except $200. Evaluate his progress and describe the results.
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An isolated conductor has net charge +10*10^-6 C and a cavity with a point charge q=+3.0*10^-6 C. What is the charge on (a) the cavity wall and (b) the outer surface?
During each cycle, a refrigerator ejects 605 kJ of energy to a high-temperature reservoir, and takes in 545 kJ of energy from a low-temperature reservoir. (a) Determine the work done on the refrigerant in each cycle.(in KJ)
A new sidewalk will be 6 ft wide, 220 ft long, and filled to the depth of 3 inches (0.25 foot) with concrete. how many cubic yards of concrete are needed?
Why does the amplitude of the vibration of the LRC circuit change with frequency?
Nick has a goal to pay his credit card balance in full by June 30. It is now April, and he can pay all except $200. Evaluate his progress and describe the results.
What is the maximum possible coefficient of performance of a heat pump that brings energy from outdoors at -13.00°C into a 22.0°C house? Note that the work done to run the heat pump is also available to warm up the house.
An electromagnetic wave strikes a 2.40-cm2 section of wall perpendicularly. The rms value of the wave's magnetic field is determined to be 7.60 10-4 T. How long does it take for the wave to deliver 2350 J of energy to the wall?
Nuala drives to her grandma's. She drives at 20 miles per hour. The journey takes 50 minutes. How long would the journey take if Nuala drove at 40 miles per hour?
If the heat pump is reversed so that it acts as an air conditioner in the summer, what would be its coefficient of performance?
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