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A strong electromagnet produces auniform magnetic field of 1.60 T over a cross-sectional area of0.200 m2. We place a coil having 200 turns and a totalresistance of 20.0 Ω around the electromagnet. We then smoothly reduce the current in theelectromagnet until it reaches zero in 20.0 ms. What is the currentinduced in the coil?
The leader of a bicycle race is traveling with a constant velocity of +11.2 m/s and is 10.4 m ahead of the second-place cyclist. The second-place cyclist has a velocity of +9.50 m/s and an acceleration of +1.20 m/s2. How much time elapses before h..
a platinum resistance thermometer has a resistances of 200 when placed in a 0c ice bath and 255.8 when immersed in a
On the salt flats of Bonnevile, Utah (latitude 41 degrees N) the British auto racer John Cobb in 1947 became the first man to travel at a speed of 400 mph on land. If he was headed due north at this speed, find the ratio of the magnitude of the Co..
A Young physicist wants to send radio signal to two separate cities (A and B); however, the signals being sent to one city should not be perceived in the second city and vice versa. Determine the distance d between the two antennas, the phase diff..
A 137-cm-long wire is made by welding a 1.3-mm-diameter, 26-cm-long copper wire to a 0.31-mm-diameter, What is the resistance of the composite wire
a particle is trapped in an infinite square well in the first excited state .a what is the wavefunction of the
Two objects are charged and their centers are separated by 31.6 cm. Object A is charged to 61 nC and object B is charged to 54 nC. What is the magnitude of the electrostatic force between them.
A snowboarder starts from rest rides 30.31m down a snow covered slope that makes an angle of 34.19 degrees with the horizontal, How far will she travel along the flat snow
An Olympic skier whose mass is 50 kg is moving at 25 m/s down a 20degree slope encounters a region of wet snow of coefficient of frictio Uk=0.55 which reduces her speed. Find the acceleration of the skier
Objects of equal mass are oscillating up and down in simple harmonic motion on two different vertical springs. The spring constant of spring 1 is 205 N/m. Find the spring constant of spring 2.
What is the net electric force acting on particle.
a an ideal gas occupies a volume of 3.0-cm3 at 20degc and atmospheric pressure. determine the number of molecules of
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