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Consider the magnetic flux through a coil of wire with an area A=200cm^2 and n=100turns. If a magnetic field is increasing through the coil at a rate of 0.8 Tesla/sec, what is the induce emf around the coil?
Hold the magnet as steady as you canin the coil. Is there an induce emf around the coil? Why or why not?
A 7.00-cm-long wire is pulled along a U-shaped conducting rail in a perpendicular magnetic field. The total resistance of the wire and rail is 0.350?. How big is the pulling force
A nail projects 25.0 mm horizontally outward from a wall. A 400 N picture is hung from the end of the nail, what is the diameter of the nail
Two circular loops are centered on the x-axis parallel to the yz-plane. The smaller loop is stationary with radius r=0.02m, and resistance R=0.003Ohms. The larger loop has radius, s=0.2m, carries current I=1.5A, and moves towards the smaller loop ..
A baseball player slides into third base with an initial speed of 4.6 m/s. how far does the player slide before coming to rest
A block of mass=0.750kg is fastened to an unstrained horizontal spring whose spring constant is k=65.0N/m. The block is given a displacment of 0.220m and then released from the rest.
An ac circuit contains a resistor with a resistance of 8.1ohms. The resistor has an rms current of 0.14A. Find the average power delivered to the resistor
An 80kg crate, starting from rest, is pulled across a floor with a constant horizontal force of 350N. For the first 12m the floor is frictionless, and for the next 16m the coefficient of kinetic friction is .44. What is the final speed of the crate? ..
A ship sets out to sail to the point 158 km due north. An unexpected storm blows the ship to a point 134 km due east of its starting point. (a) How far (in km) and (b) in what direction (as an angle from due east, where north of east is a positive an..
A soccer ball, which has a circumference of 70.0 , rolls 11.0 in 3.30. What was the average angular speed of the ball during this time
Two skaters, of mass mA = 60kg and mB = 90 kg, are skating toward each other at the same speed v = 4 m/s. What is the speed of skater A following the collision
A roller coaster at an amusement park has a dip that bottoms out in a vertical circle of radius r. how fast is the roller coaster traveling at the bottom of the dip
The starter motor of a car engine draws a current of 100A from the battery. The copper wire to the motor is 4.0mm in diameter, How much charge passes through the starter motor
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