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A toroidal selenoid has inner radio r1= 15.0 cm and outer radius r2= 18.0 cm. The selenoid has 250 turn and carries a current of 8.50 A. What is the magnitude of the magnetic field at the following distance from the center of the torus
a) 12.0 cm
b)16.0 cm
c) 20.0 cm
A 54kg ice skater moving at 6.4m/s glides to a stop. Assuming the ice is at 0deg C and that 50% of the heat generated byfriction is absorbed by the ice, how much ice melts
A skateboarder shoots off a ramp with a velocity of 6.4 m/s, directed at an angle of 62° above the horizontal. How high above the ground is the highest point that the skateboarder reaches
A 440.0-N force accelerates a go-cart and its driver from 10.1 m/s to 18.1 m/s in 5.20 s. What is the mass of the go-cart plus driver
Two children hang by their hands from the same tree branch. The branch is straight, and grows out from the tree at an angle of 33° above the horizontal. What is the magnitude of the net torque exerted on the branch by the children
An object placed 11.00 cm from a concave spherical mirror produces a real image 8.40 cm from the mirror. If the object is moved to a new position 20.0 cm from the mirror, what is the position of the image?
0.125kg of water at 85.0 degrees is poured into an insulated cup containing 0.240kg of ice initally at 0 degrees. Calculate the mass of liquid
The flywheel of a motor has a mass of 300kg and a moment of inertia of 580kg?m2. The motor develops a constant torque of 2000N?m, What is the angular acceleration of the flywheel
A sample contains 8.90×104 radioactive nuclei. In a time of 5 minutes, 1.90×103 of the nuclei decay. Evaluate the half life of the sample
A charge of +Q is located at the 0 mark of a meter stick whilea charge of +3Q is located at the 100 cm mark. Where is the net field equal to zero
When the three blocks in the figure below are released from rest, they accelerate with a magnitude of 0.740 m/s2, What is the coefficient of kinetic friction between block 2 and the table
What is the wavelength of the waves produced on the wire.
A car starts from rest and travels for 7.0 seconds with auniform acceleration of +2.5 m/s^2. how far has it gone
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