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A flat circular coil with 25 turns and a radius of 5 cm lies in the plane of the paper. A changing magnetic field is present in adirection perpendicular to and coming out of the plane of the paper. The resistance of the coil is 0.5 ohms and a current of 50mA is observed to be flowing clockwise in the coil.a. What is the rate of change of the magnetic field(ΔB/Δt)?b. Is the magnitude of the magnetic field increasing ordecreasing?
when a 0.045 kg golf ball takes off after being hit, its speedis 41m/s, how much work is done on the ball by the club
The drawing shows a uniform horizontal beam attached to avertical wall by a frictionless hinge and supported from below atan angle θ = 38o by a brace that isattached to a pin. The beam has a weight of 338 N.
a 2.30-g bullet embeds itself in a 1.30-kg block which is attached to a spring of force constant 780 nm .if the maximum
In a series R-L-C circuit, L = 0.205H , C = 80.5?F and the voltage amplitude of the source is 260V, What is the resonance angular frequency of the circuit
Standing waves on a wire are described by y(x, t)=(A_{\rm SW} {\rm sin} kx ){\rm sin} \omega t, with A_{\rm SW} = 2.50mm , \omega = 976rad/s , and k = 0.730\pi \; rad/m . The left end of the wire is at x = 0.
a flat square coil with 23.0 turns has sides of length 0.120 m . the coil rotates in a magnetic field of 2.30times10-2
A 0.30 kg softball has a velocity of 12 m/s at an angle of 35° below the horizontal just before making contact with the bat. The ball leaves the bat 2.0 ms later with a vertical velocity of magnitude 10 m/s. What is the magnitude of the average f..
A 60kg astronaut is on a space walk away from the shuttle whenthe tether line breaks. determine the maximum distance she can be from the craft
a wedge-shaped sliver of glass viewed from above is illuminated with 436-nm light. the sharp edge is dark. what is the
A heat engine with 0.500mol of a monatomic ideal gas initially fills a 1000cm^3 cylinder at 700K. How much work does this engine do per cycle
Suppose the work function for a particular metal is 5.09 eV. Find the cut-off frequency for this metal
Monochromatic light of wavelength 692 nm is incident on a narrow slit. On a screen 2.81 m away, Calculate the angle of diffraction of the second minimum
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