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A very long, straight solenoid with a cross-sectional area of 6.00cm squared is wound with 40 turns of wire per centimeter, and the windings carry a current of 0.250A . A secondary winding of 2 turns encircles the solenoid at its center. When the primary circuit is opened, the magnetic field of the solenoid becomes zero in 5.00×10?2s . What is the average induced emf in the secondary coil?
3 Mass points each of mass m are placed at the vertices of an equilateral triangle of side l. What is the gravitational feild and potential due to 3 masses
A 1000 kg airplane touches down on an icy runway, heading northward at 110 km/h. Find the speed and direction of the combined wreckage
As an energy-efficiency consultant, you're asked to assess the pumped-storage facility. Its reservoir sits 136 above its generating station and holds 9.0×10^9 of water. The power plant generates 315 of electric power while draining the reservoir over..
What is the distance between the centers of the two slits? Describe answer in m.
At point A, 3,00 m from a small source of sound that is emitting uniformly in all directions, the sound level is 53.0 dB. what is the intensity of the sound at point A
Two cylindrical rods are identical, except that one has a thermal conductivity k1 and the other has a thermal conductivity k2. As the drawing shows.
A 1.5 kg copper block is given an initial speed of 3 m/s on a rough horizontal surface. Because of friction, the block finally comes to test. If the block absorbs 85% of its kinetic energy, calculate its increase in temperature.
A baseball has a mass of 140 grams and a softball has a mass of 280 grams. In which of the situations would they both have the same momentum.By how much will a bar long of the same material.
Light is emitted by a sodium sample that is moving toward Earth with speed v. The wavelength of the light is 589 nm in the rest frame of sample. The wavelength measured in the frame of Earth is 537 nm. Find v.
A man lifts a 20.0-kg bucket of concrete from the ground up to the top of a 20.0-m tall building. How much work was done by the man in lifting the bucket
A superhero flies 147 m from the top of a tall building at the angle of 33 degrees below the horizontal. What is the vertical component of the superhero's displacement.
Which vector would return the hiker to the starting point? All angles are measured in a counter-clockwise direction from the positive x-axis.
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