How much less power is wasted
A powertel station delivers 54000kw of power at 1200v to a factory through wires with a total resistance 3.5. How much less power is wasted? How much power is delivered at 50000v rather than 12000v.
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We want 1 liter of 0.1M NaCl and we have 4M stock solution. How much of 4M solution and how much dH2O will we measure out for this dilution.
In being launched from rest it moves through a distance of 87 m and has a kinetic energy of 5.30 x 107 J at lift-off. What is the work done on the jet by the catapult?
What are the steps in the construction process?
Saturated liquid refrigerant R-134a at 40 deg.C is throttled into an evaporator coil where the temperature is -30 deg.C. What is the quality of the refrigerant after the expansion?
Suppose you are given data from a survey showing the IQ of each person interviewed and the IQ of his or her mother. That is all the information you have. Your boss has asked you to put together a report showing the relationship between these two v
Knowing that Uk=.6 between the block and the horizantal surface and e=.7 between the block and the sphere, determine after impact; (a) the maximum height h reached by the sphere, (b) the distance x traveled by the block.
However, the superconductivity is destroyed if the magnetic field at the surface of the metal reaches or exceeds 0.10 {\rm T}.What is the maximum current in a straight, 2.4-mm-diameter superconducting niobium wire?
A recent study issued from the British Health Journal informs us that 1% of women age 40 have breast cancer . A mammography test has an 80% success rate and a 10% false alarm rate. If a woman receives a positive mammography test, what is the proba
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