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1) Suppose you rotate a 1000 turn, 19 cm diameter coil in the Earth's 5.00 x 10-5 T magnetic field. What is the peak emf generated in V, given the plane of the coil is originally perpendicular to the Earth's field and is rotated to be parallel to the field in 8.5 ms?
2) Suppose a book is held 6.7 cm from a 12-cm focal length lens. Find the magnification of the image of the book. Find the magnification of the lens when the book is held 9.7 cm from the magnifier.
An electrical device uses 1210 W of power when the amplitude of the alternating current is 2.5 A. What is the rms voltage across it
Suppose you could pack neutrons (mass = 1.67 × 10-27 kg) inside a small ball of radius 0.026 m in the same way as neutrons, Approximately how many neutrons would fit inside the ball
Two charges are separated by some distance and the magnitude of the electric force between them is 224.6 Newtons. If the distance between the same two charges is tripled, what is the magnitude of the electric force on them now in Newtons?
An aluminum wire carrying a current of 4.0 A has a cross-sectional area of 9.0 10-6 m2. Find the drift speed of the electrons in the wire
A small block with mass m1 rest on a frictionless horizontal tabletop a distance r1 from a hole in the center of the table. A light, stretchless string tied to the small block passes down through the hole, and a larger block with mass m2 is suspen..
A football is kicked for a field goal with an initial speed of 20 m/s at an angle of 40 degrees above the horizontal. How far has the football traveled when it reaches the goal post crossbar (about 3 meters high) on its way down?
A positive particle with charge 2Q is at the origin between two equal negative particles each with charge - Q, Draw an electric field line diagram of the three paricle system
In a serve, a tennis player hits the ball horizontally. Neglect the effects of air resistance and the diameter of the ball. Where will the ball land if it just clears the net
A 50.0 ohm resistor, 30.0-mH inductorr, and 110.0-uF capacitor are connected in series with a alternative voltage source. Find the rms voltage drop across the inductor
A 10 g steel marble is spun so that it rolls at 150 rpm around the inside of a vertically oriented steel tube. The tube is 12 cm in diameter. Assuming that the rolling resistance is negligible enough for the marble to maintain 150 rpm for several ..
Assume that a light bulb is a 60.0 W bulb with a resistance of240 Ω. The magnetic field has a magnitude of 0.40 T, and the length of the rod is 0.60 m. The only resistance in the circuit is that due to the bulb.
Intense white light is incident on a diffraction grating that has 720 lines/mm. What is the angular separation between the violet edge (400 nm) and the red edge (700 nm) of the first order spectrum produced by the grating
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