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An electromagnet produces a magnetic field of 0.550 T in a cylindrical region of radius 2.40 cm between its poles. A straight wire carrying a current of 10.1 A passes through the center of this region and is perpendicular to both the axis of the cylindrical region and the magnetic field.
What magnitude of force is exerted on the wire?
An object is in front of a converging lens with a focal length of 11.0 cm. The lens produces a real image located 25.0 cm from the lens. what is the image distance of the new lens
A popgun uses a spring for which k=20 N/cm. How high can the gun shoot a 5.0 g projectile
Two Polaroids are aligned so that the light passing through them is a maximum. At what angle should one of them be placed so that the intensity is subsequently reduced by half?
A well insulated rigid vessel also contains 3 kg of saturated liquid water at 40 oC. The vessel also contains an electrical resistor that draws 10 amperes when 50 volts are applied.
4 kg of liquid seawater with initial temp 0 C and salinty 3 % is mixed with pure water with initital temp 15 C the system reaches equilibrium at 5 C
A highway curve of radius 500 m is designed for traffic moving at a speed of 73 km/hr. What is the correct banking angle of the road.
A tennis player hits a ball 2.0 m above the ground. The ball leaves his racquet with a speed of 23.0 m/s at an angle 5.5 degrees above the horizontal. By how much does the ball clear the net
A uniform, thin, solid door has height 2.40 m, width 0.900 m, and mass 22.5 kg. Find its moment of inertia for rotation on its hinges
A spacecraft is in circular Earth orbit at 6000 altitude. By how much will its altitude decrease if it moves to a new circular orbit where its orbital period is 5% lower
250.0 gram industrial mold absorbs 5,575 calories of heat when it is filled with an alloy. If the specific heat of the mold is 0.275 calories per gram degree Celsius, explain by how much does its temperature rise?
An 10m, 210N uniform ladder rests against a smooth wall. The coefficient of static friction between the ladder and the ground is 0.55, and the ladder makes a 50° angle with the ground. How far up the ladder can an 850N person climb before ladder b..
An electron is released in a region where there is a varying electric potential. Will the electron move toward the lower potential region or the higher potential region
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