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Suppose you install a compass on the center of a car's dashboard.
(a) Assuming the dashboard is made mostly of plastic, compute an order-of-magnitude estimate for the magnetic field at this location produced by the current when you switch on the car's headlights. (Suppose you have two 104-W headlights running in series from a 12-V battery with all the current going through the switch 62 cm from the compass. Model the current as being from a long straight wire.)
(b) How does this estimate compare with the Earth's magnetic field?
In the hydraulic press utilized in a trash compactor, the radii of the input piston and the output plunger are 5.8 multiplied by 10-3m and 5.4 multiplied by 10-2 m, respectively. If the height difference among the input piston and the output plunger ..
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Two identical spheres each carry a charge of -40.0 µC. The spheres are separated by a distance of 1.00 m. What is the electric force between the spheres
a 0.210-a current is charging a capacitor that has circular plates 15.8 cm in radius. the plate separation is 4.00 mm.a
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During a 10 minute period, 30 grams of steam condenses into water. How much energy flowed out of the water-steam mixture, What is the change in the entropy of the water-steam mixture
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a microscope for viewing blood cells has an objective with a focal length of 0.50 cm and an eyepiece with a focal
A 30.0-kg block is initially at rest on a horizontal surface. A horizontal force of 76.0 N is required to set the block in motion, Find the coefficient of static friction between the block and the surface
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