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An inductor with L = 9.15mH is connected across an ac source that has voltage amplitude 45.5V.
A. What is the phase angle for the source voltage relative to the current?
B. Does the source voltage lag or lead the current?
C. What value for the frequency of the source results in a current amplitude of 4.50 A ?
A steel beam 10m long is installed in a structure at 15?C, What is the beam's change in length when the temperature reaches 50?C
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A 0.20 kg stone attached to a 0.8 m long string is rotated in a horizontal plane. Determine the speed of the stone
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A 25 g of copper pellets are removed from a 300 C oven and immediately dropped into 120 mL of water at 18 C in an insulated cup. What will the new water temperature be.
1. a diamond has a mass of 56.6 g and the gold ring it is set in has a mass of 125.6 g. how many carbon atoms are there
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You drive on Interstate 10 from San Antonio to Houston, half the time at 60 km/h and the other half at 105 km/h. On the way back you travel half the distance at 60 km/h and the other half at 105 km/h.
A potter's wheel having a radius 0.49 m and a moment of inertia 10.9 kg·m2 is rotating freely at 52 rev/min. Find the effective coefficient of kinetic friction between the wheel and the wet rag
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