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There is a current I flowing in a clockwise direction in a squareloop of wire that is in the plane of the paper. If the magnetic field B is toward the right,and if each side of the loop has length L, then the net magnetic force acting on the loopis?
A transformer has the voltages 121 Vpri and 45 Vsec. What is the current flowing in the secondary
question the alpha-particle bombardment of fluorine-19 generates sodium-22 and neutrons. write the nuclear equation
A liquid is used to make a mercury-type barometer, as described in section Pressure in a Fluid. The barometer is intended for spacefaring astronauts. Find the atmospheric pressure at the surface of Planet X
A 1300-kg car is being driven up a 4.0° hill. The frictional force is directed opposite to the motion of the car and has a magnitude of f = 530 N. A force Farrowbold is applied to the car by the road and propels the car forward.
A disk-shaped merry-go-round of radius 2.63 m and mass 155 kg rotates freely with an angular speed of 0.744 rev/s. find the initial and final kinetic energies for this system
A weather vane initially at rest has a moment of inertia of 0.104 kg · m2 about its axis of rotation. Find the angular velocity of the weather vane just after it is struck
A flywheel of mass 187 kg has an effective radius of 0.63 m (assume the mass is concentrated along a circumference located at the effective radius of the flywheel). What is the applied torque on the flywheel
300 g of water at 45°C are poured into an 800-g aluminum container with an initial temperature of 10°C. The specific heat of aluminum is 900 J/(kg·K). What is the final temperature of the system
A 55-kg mass ice skater standing stationary on very slipper ice (negligible friction) throws a 0.45 kg baseball with a speed of 27 m/s in the horizonatal direction
A satellite is in a 95.0 min period circular orbit 380km above Earth's surface. Find the satellite's speed
An insulated vertical piston cylinder device initialy contains 10kg of water, 6 kg of which is in the vapor phase. Determine the final temperature inside the cylinder
how does the energy stored in a capacitor change if each of the following happens? a the potential difference is
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