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A square, single-turn coil 0.22 m on a side is placed by its plane perpendicular to a constant magnetic field. An emf of 16 mV is induced in the winding when the area of the coil decreases at a rate of 0.08 m2/s. What is the magnitude of the magnetic field?
A force of 4.7N is required to stretch a certain spring by 1.4cm, How far must this spring be stretched for its potential energy to be 0.025J
Suppose a man's scalp hair grows at a rate of .31 mm per day. What is this growth rate in feet per week
A car accelerates uniformly from rest and reaches a speed of22.9m/s in8.95s. Assume the diameter of a tire is58.3cm. What is the final angular speed of a tire in revolutions per second
The driver of a 1250 kg car, initially traveling at 10.1 m/s, applies the brakes, bringing the car to rest in a distance of 25.0 m
an 10-kg ball moving at 22 ms collides elastically and head-on with a second 6-kg ball moving in the opposite direction
A 50kg mass is tied to a massless rope wrapped around a solid cylindrical drum, mounted on a frictionless horizontal axle. Find the drum's mass
In an RLC circuit, the following three elements are connected in series: a resistor of 31.0 ohm, a 22.2-mH inductor, and a 0.390-µF capacitor. Find the power factor for the RLC series circuit
During each cycle, a refrigerator ejects 605 kJ of energy to a high-temperature reservoir, Determine the work done on the refrigerant in each cycle
a all our household circuits are wired in parallel. below is an example of a simple household circuit with 3 identical
A circular loop of wire can be utilized as a radio antenna. If a22.0-cm-diameter antenna is located 3.00 {\rm km} away from a 99.0-MHz source by a total power of 48.0 {\rm kW}, what is the maximum emf induced in the loop?
Two masses m1 and m2 are connected by an ideal spring and placedon a horizontal frictionless surface as shown. they are pulledapart so that the spring is stretched an amount x0 and then theyare released simultaneously. the constant for the spring ..
q1. a uniform upward-pointing electric field e of magnitude 3.5times103 nc has been set up between two horizontal
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