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A conducting rod is moving during a magnetic field, as in the drawing. The magnetic field strength is 0.65 T, and the speed of the rod is 4.8 m/s. Abruptly, the field strength decreases to 0.48T. To what value must the speed v of the rod be adjusted to re-establish the emf induced among the ends of the rod at its initial value?
A platinum resistance thermometer has resistances of 206.97 W when placed in a 0°C ice bath and 257.43 W, What is the melting point of potassium
A 48.0 ice skater spins about a vertical axis through her body with her arms horizontally outstretched, making 2.50 turns each second. The distance from one hand to the other is 1.50. Biometric measurements indicate that each hand typically makes ..
A nonuniform electric field is directed along the x-axis at all points in space. This magnitude of the field varies with x , but not with respect to y or z. find the net electric flux passing through the cylindrical surface
On a frictionless horizontal air table, puck A (with mass 0.246 ) is moving toward puck B (with mass 0.370 ), which is initially at rest. What was the speed of puck A before the collision
Two identical small insulating balls are suspended byseparate 0.25-m threads that are attached to a common point on theceiling. Each ball has a mass of 8.0 × 10-4 kg.Initially the balls are uncharged and hang straight down.
Light enters a container of benzene at an angle of43^\circ to thenormal; the refracted beam makes an angle of 27^\circ withthe normal. Calculate the index of refraction of benzene.
youre an engineer designing kitchen appliances and youre working on a two-speed food blender with 3700 rpm and 2200 rpm
A cylindrical space probe adjusts its shape by extending and retracting masses. The probe is set rotating along the cylinder’s axis and released. The maximum rotation rate is 5 rps and minimum rotation rate is 1 rps.
Upton Chuck is riding the Giant Drop at Great America. If Upton free falls for 2.6 seconds, what will be his final velocity and how far will he fall
The vertical displacement of particles in a string (when a wave is propagating through it) is given by y = (0.02) sin[(10?)t - (8?)x], What is the amplitude of the wave
skier who, starting from rest, reaches a speed of 5.04 m/s when going down a slope for 4.21 s, How far does the skier travel in this time
A textbook of mass 1.90kg rests on a frictionless, horizontal surface. A cord attached to the book passes over a pulley whose diameter is 0.150m, What is the tension in the part of the cord attached to the textbook
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