Resistivity of iron at room temperature
At what temperature will aluminum have a resistivity that is three times the resistivity of iron at room temperature? (Assume room temperature is 20° C.)
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The rank correlation coefficient is used when one is
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Compute the number of kilograms of hydrogen that pass through a 5-mm thick sheet of palladium having an area of 0.20 m2 at 500 oC.
what is the magnitude of the magnetic force acting on the proton?
A small bucket of water is swinging above a persons head at a constant angular speed of 10rad/s. The rope is 1 m long, and the combined mass of the bucket and the water is 4kg.
The data listed below are claimed for a power cycle operating between hot and cold reservoirs at 1000 K and 300 K, respectively. For each case, determine whether the cycle operates reversibly, irreversibly, or is impossible.
A certain lightbulb has a tungsten filament with a resistance of 17.7 Ω when at 20.0°C and 135 °C when hot. Assume the resistivity of tungsten varies linearly with temperature even over the large temperature range involved here.
As part of the new Bicycle Corps, a solider is pedaling down the road at 25 km/h, holding a missile launcher on his shoulder. The combined mass of the bicycle and the solider is 8o kg, and the single missile in the launcher has a mass of 0.5 kg.
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