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A square coil of wire containing a single turn is placed in auniform 0.19-T magnetic field, as the drawing shows. Each side hasa length of 0.35 m, and the current in the coil is 9.7 A. Determine the magnitude of the magnetic force on (a) the topand (b) left sides.
a 90 ohm resistor has a current of .6A and is connect in series with a 150 ohm resistor. What is the emf of the battery to which the resistors are connected
Two capacitors are connected to a battery. The battery voltage is V = 50 V, and the capacitances are C1 = 2.00 ?F, Determine the total energy stored by the two capacitors
Consider an airplane that normally has an air speed of 90 km/h in a 95 km/h crosswind blowing from west to east. Calculate its ground velocity when its nose is pointed north in the crosswind.
An electron moves at a speed of 480m/s perpendicular to the direction of the uniform magnetic field of 1 T. What is the radius of the electron's circular orbit in units of nanometers (1 m = 109 nm)
At amusement parks, there is a popular ride where the floor of a rotating cylindrical room falls away, What is the source of the centripetal force acting on the riders
Rays of the Sun are seen to make a 35.6 angle to the vertical beneath the water. At what angle above the horizon is the Sun
A continuous line of charge lies along the x axis, extending from x = +x0 to positive infinity. What is the direction of the electric field at the origin
An astronomer observes a comet and measures the wavelength of the H? line to be at 486.2 nm. In the lab, the line is found to be at 486.1 nm. What is the Lorentz factor for the comet
Two identical guitar strings are prepared such that they have the same length (1.91 m) and are under the same amount of tension. What is the wave propagation speed on the guitar strings
A stone has a mass of 4.00 x10-3 kg and is wedged into the tread of an automobile tire, as the drawing shows. The coefficient of static friction between the stone and each side of the tread channel is 0.76.
Two cars traveling with the same speed move directly away from one another. What is the speed of the cars
Two charged dust particles exert a force of 4.30×10-2 N on each other. What would be the force if they are moved so they are only one-sixth as far apart.
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