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If Luis pulls straight down on the end of a wrench that is tilted?=30° above the horizontal and isr = 35cm long, what force must he apply to exert a torque of -17N·m?
A hydrogen atom in its ground state is illuminated with light having a wavelength of 96.7 nm. Compute the state and wavelength of any photon that would be emitted by the atom
A turntable must spin at 33.4 rpm (3.50 rad/s) to play an old-fashioned vinyl record. How much torque must the motor deliver if the turntable is to reach its final angular speed in 2.5 revolutions
Two identical, small insulating balls are suspended by separate 0.26-m threads that are attached to a common point on the ceiling. Determine the tension in the threads
A series circuit with R=20ohms, C=330 MuF and L=30 mh, is connected to an AC sourceof amplitude 160v and frequencey of 60 Hz, Whats the power dissipated by the circuit
A 0.410-kg blue bead slides on a frictionless, curved wire, Find the maximum height the green bead rises
An optical system is designed so that an object for a convex spherical mirror of focal length f=15 cm is 20 cm behind the mirror, determine whether the image is real or vertual, erect or inverted
A camera takes a perfectly exposed picture when the lens diaphragm is set to f/4 and the shutter speed is 1/250 s, what should the new shutter speed be so that the exposure is still correct
A group of particles is traveling in a magnetic field of unknown magnitude and direction. compute the magnitude and the direction of the magnetic field
A car heading north collides at an intersection with a truck heading east. how fast was the car initially traveling
a block of mass M hangs at rest. The rope that is fastened to the wall is horizontal and has a tension off 52 N. what is the angle theta
A model airplane with mass 0.740 kg is tethered to the ground by a wire so that it flies in a horizontal circle 30.2 m in radius. Find the magnitude of the angular acceleration of the airplane
Many stores have "security mirrors" mounted on ceilings or in corners so that employees can keep watch over large parts of the store, what is the magnification of the image
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