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A rectangular coil of dimension 4cmx6cm is rotated between the opposite poles of a magnet. The strength of the magnetic field is 1.2T. If the coil is rotating at a rate of 400rad/s. What is the magnitude of the induced EMF in the coil. What is the direction and magnitude of the induced current if the coil resistance is 10-3 Ω.
A beam of ultraviolet radiation, with frequency of 2.64x1015 Hz is directed on a clean metal surface. The work function of the metal is 3.40 eV. Calculate the maximum kinetic energy for an electron dislodged from the surface by the radiation.
a uniform rod is resting on a frictionless table when it is suddenly struck at one end by a sharp horizontal blow in a
Determine the moment of inertia for three children weighing 57.0 lb, 42.0 lb and 78 lb sitting at different points on the edge of a rotating merry-go-round, which has a radius of 12 ft.
Communications satellites are placed in a circular orbit where they stay directly over a fixed point on the equator as the earth rotates. What is the magnitude of the acceleration of a satellite in a geosynchronous orbit
A boy gets ready to slide down an icy hill with his sled.Assume that the friction from the ground is negligible. How far will the boy have slid after 3 seconds with that acceleration
A bar magnet is oriented with its magnetic dipole moment at 57.3° to the direction of a 0.0357-T magnetic field, Find the magnitude of the magnet\'s magnetic dipole moment
What friction torque is required to reduce angular speed
find out the z-component of the block's momentum after the kick.
In a solar water heater, energy from the Sun is gathered by water that circulates through tubes in a rooftop collector. The solar radiation enters the collector through a transparent cover and warms the water in the tubes; this water is pumped int..
1. two alpha particles helium nuclei each consisting of two protons and two neutrons have an electrical potential
Your friend's car is parked on a cliff overlooking the ocean on an incline that makes an angle of 24.7° below the horizontal. determine the car's position relative to the base of the cliff
short pulses of laser light traveling in the x-direction with a diameter of 1 mm are incident on a perfect mirror. the
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