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A flat circular coil with 105 turns, a radius of 4.00 x 10 neg 2nd m, and a resistance of 0.48Ω is exposed to an external magnetic field that is directed perpendicular to the plane of the coil. The magnitude of the external magnetic field is changing at a rate of ΔB/Δt =0.783T/s, thus inducing a current in the coil. Discover the magnitude of the magnetic field at the center of the coil that is produced with the induced current.
question a 1200 kg ore cart is rolling at 10.8 ms across a flat surface. a crane dumps 493 kg of ore vertically into
a golf ball strikes a hard smooth floor at an angle of 22.1 deg and as the drawing shows rebounds at the same angle.
An 11.70 kg weather rocket generates a thrust of 240 N. The rocket, pointing upward, is clamped to the top of a vertical spring. The bottom of the spring, whose spring steady is 470 N/m, is anchored to the ground.
Reply in m/s. Also, why does the car's mass not matter.
A barge of mass 5x 10^4 kg is pulled along the Erie Canal by two mules, walking along towpaths parallel to the canal on either side of it. The ropes harnessed to the mules make angles of 45° to the canal.
What is the net upward force on an airplane wing of area 20.7 m2 if the speed of air flow is 232 m/s across the top of the wing and 215 m/s across the bottom? (The density of air where the airplane flies is ρair = 1.21 kg/m3.)
a thin rod has a length of 0.25m and rotates in a circle on a frictionless tabletop. The axis is perpendicular to the length of the rod at one of its ends. what is the angular velocity
A weather satellite encircles the earth at an orbital speed of 6200 m/s. How high above the earth's durface does it orbit
Suppose the loop in the generator in the figure below is square and the length of each side of the loop is increased by a factor of nine. By what factor will the AC voltage change
A student places an object on the 5.0 cm mark of the meter stick. He places a positive lens that he knows has a focal length of 15.0 cm at the 30.0 cm mark on the meter stick. From the data what is the focal length of the negative lens
Compressed air can be pumped underground into huge caverns as a form of energy storage. The volume of a cavern is 4.9 Ã- 105 m3, how many homes could this internal energy serve
a car enters a freeway entrance ramp going 35 miles per hour. it accelerates at a rate of 2.11nbspmss up the entrance
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