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A magnetic field is perpendicular to the plane of a singleturn circular coil. The magnitude of the field is changing,so that an emf of .80V and a current of 3.2A are induced in thecoil. The wire is then re-formed into a single-turn squarecoil, which is used in the same magnetic field (again perpendicularto the plane of the coil and with a magnitude changing at the samerate). What emf and current are induced in the squarecoil?
A resistance R carries a current I = (5 A) sin 120 ?t + (10 A) sin 240 ?t. What is the rms voltage across the resistor
q1. a ranger in a national park is driving at 52 kmh when a deer jumps onto the road 86 m ahead of the vehicle. after a
The largest stable nucleus has a nucleon number of 209, and the smallest has a nucleon number of 1. what is the ratio (largest/smallest) of the surface areas of these spheres
A car travels with an initial velocity of 2 meters per second, at initial position of 0 meters with an accerleration of 2 meters per second at time of 2.0 seconds
A 20.0-kg box rests on a horizontal surface. The coefficient of static and kinetic friction between the box and the surface are 0.30 and 0.10 respectively, find the friction force between the box and the surface
Two resistors connected in series have an equivalent resistance of 569.5 Ohms. When they are connected in parallel, Find the resistance of each resistor
After landing on an unfamiliar planet, a space explorer constructs a simple pendulum of length 53.0cm. What is the magnitude of the gravitational acceleration on this planet
A 400lb woman stands on a floor in flat soled shoes. A 130lb woman stands on the same floor in a high heel shoe with all her weight is on the heel of the shoe. Which person is more likely to dent the floor?
A race car is making a U-turn at constant speed. The coefficient of friction between the tires and the track is ?s = 1.79. what is the maximum speed at which the car can turn without sliding
A planet of mass 7*10^24 is at location m A star of mass 8*10^30 is at location m. What is the force exerted on the planet by the star ?
A 20 g ball is fired horizontally with initial speed v_0 toward a 110 g ball that is hanging motionless from a 1.10 m-long string. The balls undergo a head-on, perfectly elastic collision, after which the 110 g ball swings out to a maximum angle t..
On a very muddy football field, a 100kg linebacker tackles an 85kg halfback. What is the direction of this velocity
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