What is the magnetic field due the currents
Two long straight wires are parallel and carry current in opposite directions. The currents are 10 amps and 15 amps and the wires are separated by 0.40cm. What is the magnetic field due these currents at a point midway between the wires?
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Heat transfer from the back surface of the board is negligible. What is the average surface temperature of the chips?
A random sample of 116 lightning flashes in a certain region resulted in a sample average radar echo duration of 0.86 sec and a sample standard deviation of 0.36 sec. Calculate a 99% (two-sided) confidence interval for the true average echo durati
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An article gave the following summary data on shear strength (kip) for a sample of 3/8-in. anchor bolts: n = 76, x = 4.75, s = 1.30. Calculate a lower confidence bound using a confidence level of 90% for true average shear strength.
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A comet is observed to pass the sun at a distance of closest approach of 4 x10^10 m with a speed of 3 x 10^4 m/s. Will it return, and how long will it take to move 60º arounds its orbit from the point of closest approach? The mass of the sun
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