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Household wiring made of aluminum wire with cross-section area 3.1 x 10^-6 m^2 carries a current of 4.5 A. The bulk resistivity of aluminum is 2.82 x 10^-8 ?m. what is the power loss over 5.2 m of wire?
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A woman wishing to know the height of a mountain measures the angle of elevation of the mountaintop as 12°. After walking 1.23 km closer to the mountain on level ground, she finds the angle to be 15.8°. Find the height o ...
What are the equations and ratios used in Galileo's experiments, and what theory/principles are associated with his experiments that involve motion on a ramp at different inclines and distances for example?
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Question: A thin, horizontal, 20-cm-diameter copper plate is charged to 4.0 nC . Assume that the electrons are uniformly distributed on the surface a) What is the strength of the electric field 0.1 mm above the center of ...
The wind blows with a speed of 31.9 m/s over the roof of your house. Assuming the air inside the house is relatively stagnant, what is the pressure difference at the roof between the inside air and the outside air? Answe ...
Question: A point charge with charge q_1 is held stationary at the origin. A second point charge with charge q_2 moves from the point (x1, 0) to the point (x2, y2). How much work W is done by the electrostatic force on t ...
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