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A current path shaped as shown in the figure produces a magnetic field at P, the center of the arc. If the arc subtends an angle of θ = 50.0 ° and the radius of the arc is 0.500 m, what are the magnitude and direction of the field produced at P if the current is 4.00 A?
A paddle wheel frictionally adds thermal engery to 5.0 moles of an ideal monatomic gas in a sealed insulated container. The paddle wheel is driven by a cord connected to a falling object as shown in the drawing. How far has the 2.0kg object fallen..
A 0.178 kg ball is released from rest at the top of a 57.9 m tall building. Calculate the de Broglie wavelength of the ball
A swimming pool has dimensions 32 m 11 m and a flat bottom. When the pool is filled to a depth of 2.10m with fresh water, what is the force caused by the water on the end that is 11m.
A spaceship with rest mass m0 is traveling with an x-velocity V0x=+4/5 in the frame of the earth. what is the energy of the photon torpedo in the frame of earth
A proton moving at a speed of 3.8 ´ 106 m/s cutsacross the lines of a magnetic field at an angle of 30°. The strength of the field is 0.25 ´ 10-4 T. What is the magnitude of the force acting on the proton?
Three polarizing plates whose planes are parallel are centered on a common axis. The directions of the transmission axes relative to common vertical direction.
A shop sign weighing 245-N is supported by a uniform 155-N bean. Find out the tension in the guy wire, and the horizontal and vertical forces exerted by the hinge on the bean.
suppose that the charge on the electron and proton did not have the same magnitude but instead differed by one part in
mall candle is 37cm from a concave mirror having a radius of curvature of 22cm. What is the focal length of the mirror? Follow the sign conventions
When a 5.0 µF capacitor is connected to a generator whose rms output is 28 V, the current in the circuit is observed to be 0.30 A. What is the frequency of the source
Two parallel 1 m by 1 m copper plates are separated by a 1 mm gap. Both plates are at a potential of + 100 V. What is the electric field between the plates
You throw a 20-N rock vertically into the air from ground level. You observe that when it is a height 15.4m above the ground, Use the work-energy theorem to find its maximum height
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