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An inductor in the form of a solenoid contains 400 turns and is 14.6 centimeter in length. A uniform rate of decrease of current through the inductor of 0.421 A/s induces an emf of 175 µV. Determine what is the radius of the solenoid?
mm
60 g of gasoline is mixed with 60 g of water. What is the average density of the mixture? 40 cm3 of gasoline are mixed with 40 cm3 of water. What is the average density of the mixture?
The drawing shows four point charges. The value of q is 4.0C, and the distance d is 0.75 m. Discover the total potential at the location P. Suppose that the potential of a point charge is zero at infinity.
An asteroid is seen in opposition from Earth once every 1000 days. What is the sidereal orbital period of the asteroid? What is the length of the semimajor axis of the asteroids orbit?
A 43kg block of ice slides down the frictionless incline 1.50m long and 0.82m high. A worker pushes up against the ice, parallel to the incline, so that the block slides down at constant speed.
a hollow metal sphere has a total charge of 50 microc. if the radius of the sphere is 50 cm the electric field
Two loudspeakers emit 400Hz notes. One speaker sits on the ground. The other speaker is in the back of a pickup truck, What is the truck's speed in m/s
A 0.0575 kg ball is dropped from a height of 6 meters. If theball hits the ground and rebounds to a height of 5 meters, what was the impulse exerted on the ball by the ground
A railroad car of mass 2.1 104 kg moving at 3.50 m/s collides and couples with two coupled railroad cars, What is the speed of the three coupled cars after the collision
What is the speed of the bowl? The speed of sound is 340 meters per second.
A model car is propelled by a cylinder of carbon dioxide gas. The cylinder emits gas at a speed of 4.5 g/s with an exit speed of 80.0 m/s. The car has a mass of 400 g, including the CO2 cylinder. Starting from rest, what is the car's initial accel..
A motorcycle starts from rest and has constant acceleration. In acertain time interval, its displacement triples. In the same timeinterval, by what factor does its velocity increase
a billiard ball of mas 0.3kg moves with a speed of 5ms and collides elastically with a ball of mass 0.2kg moving in the
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