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Two coils of wire are located close together. Initially, a current of 3.73 Amp exists in one of the coils, but there is no current in the other. The current is then switched off in a time of 2.67 x 10-2 second. During this time, the average emf induced in the other coil is 3.04 Volt.
Find the mutual inductance of the two-coil system?
Scientists want to place a 3 × 103 kg satellite in orbit around Mars. They plan to have the satellite orbit a distance equal to 1.8 times the radius of Mars above the surface of the planet, What is the force of attraction between Mars and the satel..
Solenoids produce magnetic fields that are relativelyintense for the amount of current they carry. Calculate the magnetic field at the center of the solenoid
if air is 21 percent oxygen by volume and oxygen has a density of 1.31 gl what is the volume of a room that contains
A woman with mass of 58 kg stands at the rim of a horizontal table having a moment of inertia of 430 kgm2 and a radius of 2.1 m. The turntable is initially at rest and is free to rotate about a frictionless, vertical axis through its center.
A long straight wire carries a current of 40 A in a region where a uniform external magnetic field has a 30-µT magnitude and is parallel to the current
Compute the angular momentum of the earth arising from the following motions. Earth's orbital motion around the sun
A slide projector desires to create a 98 centimeter high image of a 2 centimeter tall slide. Find how far should you place the lens from the slide
One hundred turns of insulated copper wire are wrapped around an iron core of cross-sectional area 0.100 m2. The circuit is completed by connecting the coil to a 10-ohms resistor. As the magnetic field along the coil axis changes from 1.00 T to 4...
water flows at a rate of 25 lmin through a horizontal 7.0-centimeter-diameter pipe under a pressure of 6.0 pa. at one
a bullet 2.00 cm long is fired straight through a board 10 cm thick. the bullet strikes the board at speed of 420ms and
An airplane must reach a speed of 172 mi/h to take off. If the runway is 470 m long, what is the minimum value of the acceleration that would allow the airplane to take off productively.
A gas contains NO2 molecules at 30 °C. The mass of a N02 molecule is 1.53 · 10-26 kg. What is the average speed of the molecules
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