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While a magnet is moved toward the end of a solenoid, avoltage differnce is induced between the two ends of the solenoid wire. The volatage difference would be larger if
a. the speed of the magnet were increasedb. the solenoid contained more loops (while having the samelength)c. the bar magnet produced a stronger magnetic fieldd all of the above statements are truee. only two of the above statements are true.
What is the length of the shadow cast on the vertical screen by your 9 cm hand if it is held at an angle of 20 above horizontal.
Four point charges have equal magnitudes. Three are positive, and one is negative, find the ratio of the largest to the smallest net force magnitude
A toy car with a mass of 120 g moves to the right with a speed of 0.62 m/s. A small child drops a 21.0-g piece of clay onto the car, What is the change in speed of the car
question a 3.0 g bullet of specific heat 128 jkg.degree c is moving at 180 ms and enters a bag of sand then stops. if
A sound wave with intensity 23 mW/m2 interferes constructively with a sound wave that has an intensity of 16 mW/m2. What is the intensity of the superposition of the two
The sun transfers energy to the earth by radiation at a rate of approximately 1.00 kW per square meter of surface. If the solar collectors were arranged in a square array, what would be the length of its sides in kilometers and in miles
A 12.5-kg horizontal plank 4.00 m long rests on two supports, one at the left end and a second 1.00 m from the right end
Two scales on a voltmeter measure voltages up to 20.0 V and 28.0 V, respectively. Determine the coil resistance
A spaceship travels at constant velocity from Earth to a point 780 ly away as measured in Earth's rest frame, How old is the passenger when the ship reaches its destination, as measured by the ship's clock
You are standing in the middle of the recreation room of anuclear submarine that is lurking in the Arctic Ocean at themagnetic south pole of the earth, where the magnetic field linespoint straight down toward the ocean floor, in the negativez dire..
The number of turns in the primary and the secondary of a step-up transformer are 93 and 439 respectively. what is the output voltage of this transformer
A 210 g, 49 bcm diameter turntable rotates on frictionless bearings at 54 rpm . A 25 g block sits at the center of the turntable. A compressed spring shoots block radically outward along a frictionless groove in the surface of the turntable.
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