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The magnetic field of a cylindrical magnet that has a pole-face diameter of 3.3 cm can be varied sinusoidally between 29.6 T and 30.0 T at a frequency of 15 Hz. At a radial distance of 1.4 cm, what is the amplitude of the electric field induced by the variation? (Hint: see Sample Problem 30-4 in the textbook.)
V/m
A cylindrical wire is carrying a current that is non-uniform in both space and time, Find an equation that describes magnetic field inside the wire due to the current as a function of r from the center of the wire
The refractive indices of materials A and B have a ratio of nA/nB = 1.66. What is the speed of light in material B
A guitar string is 90.0 cm long and has a mass of 3.27g . From the bridge to the support post (=?) is 60.0 cm and the string is under a tension of 514 N
A train is en route from Chicago to New York at 110km/h when the engineer spots a cow on the track. How far was the train from the cow when the engineer first applied the brakes
A sonar device makes a soundwave in the air with a frequency of f1 = 61 Hz. What is the frequency of the sound wave created
Clifford is in a real hurry, however, and skips the speed ramp. Starting from rest with an acceleration of 0.49 m/s2, he covers the same distance as the ramp does, but in one-fourth the time. What is the speed at which belt of the ramp is moving.
Two charged spheres are 15 cm apart. They are moved, and the force on each of them is found to have been quadrupled. How far apart are they now.
A sailboat leaves a harbor and sails 1.80 km in the direction 65 degrees sounth of east, the boath then sails 1.1 km in the direction 15 degrees north of east. the trip takes 15 minutes. what is the magnitude and direction.
A -10uC charge is 3cm away from a +10uC charge. and is 4cm to the left from a +64uC charge. Find the net force on the +10uC charge
A gymnast does a one-arm handstand. The humerus, which is the upper arm bone (between the elbow and the shoulder joint), What is the compressional strain of the humerus
A hunter wishes to cross a river that is 1.4km wide and flows with a speed of 5km/h parallel to its banks.
the amusement park ride is going to rotate passengers around a vertical axis such that the supporting cables make a theta= 30 degree angle which vertical. Find the needed rate of rotation of the ride
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