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A series ac circuit contains a 250-ohm resistor, a 15-mH inductor, a 3.5uF capacitor, and an ac power source of voltage amplitude 45 v operating at an angular frequency of 360 rad/s, (a) what is the power factor of this circuit? (b) Discover the average power delivered to the entire circuit (c) what is the average power delivered to the capacitor, to the resistor, and to the inductor?
A 60.0 kg pole vaulter running at 12.0 m/s vaults over the bar. Assume that the vaulter's horizontal component of velocity over the bar is 1.0 m/s and disregarding air resistance, how high was the jump?
compute the energy level vales such that lasing population inversion occurs between n=2 and n=3 energy level of the lyman series.b) determine the absorption wavelength and the lasing wavelength
What are new charge on spheres - Two insulated charge Cu spheres A and B OF IDENTICAL size have charge qa and -3qa
A spring is hung from the ceiling. A 0.509 -kg block is then attached to the free end of the spring. Find the angular frequency of the block's vibrations
a free electron and a free proton are exactly 1.3 cm apart.a find the magnitude of the acceleration of the proton.
A piece of Nichrome wire has a radius of 7.2 x 10-4 m. It is used in a laboratory to make a heater that dissipates 3.30×102 W of power, estimate the necessary length of wire
What must the charge (sign and magnitude) of a particle of mass 1.42g be for it to remain stationary when placed in a downward-directed electric field of magnitude 610N/C ? Use 9.81m/s^2 for the magnitude
What is the reading of spring scale
An electron is in the ground state of an infinite square well. The energy of the ground state is E1 = 0.72 eV. What is the width of the square well
Determine how much would the length of year change if the rotation of the Earth stopped suddenly
A skateboarder shoots off a ramp with a velocity of 6.6 m/s,directed at an angle of 58° above the horizontal. The end ofthe ramp is 1.2 m above the ground. Let the x axis be parallel to the ground, the +y direction be vertically upward, and take a..
A wire carries a current of 0.616 A. This wire makes an angle of 56.7° with respect to a magnetic field of magnitude 4.63E-5 T. The wire experiences a magnetic force of magnitude 7.17E-5 N. What is the length of the wire?
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