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A small spherical insulator of mass 5.47 10-2 kg and charge +0.600 μC is hung by a thread of negligible mass. A charge of -0.900 μC is held 0.150 m away from the sphere and directly to the right of it, so the thread makes an angle θ with the vertical (see the drawing). Find the following.(a) the angle θ
A textbook of mass 2.09kg rests on a frictionless, horizontal surface. What is the moment of inertia of the pulley about its rotation axis
You are riding in a thrill ride at the State Fair, where you are spun around in a large, what is the length (approximately) of the arm
A block of mass m1 = 3.00 kg and a block of mass m2 = 8.00 kg are connected by a massless string over a pulley in the shape of a disk having radius R = 0.25 m, Determine the acceleration of the two blocks
A pulsar is a rapidly rotating neutron star. The Crab Pulsar is located in the Crab Nebula in the constellation Taurus. Find the pulsar's angular velocity
A cyclist approaches the bottom of a gradual hill at a speed of 11 meters per second. find the speed at which the cyclist crests the hill
the plank cde has a weight of 30 lb and rests on a small pivot at d. the ll5-lb gymnast a is standing on the plank at c
two semiconductor materials have exactly the same properties except that material a has a bandgap of 0.8ev and material
A thin rod of length 0.72 m and mass 200 g is suspended freely from one end. It is pulled to one side and then allowed to swing like a pendulum, how far above that position the center of mass rises
There is a curling disc of mass m =20dkg at rest on the ice.Another disc of the same kind collides head-on (b=0) into it at aspeed of v =20m/s. what is the speed of the two discs after the collision
A television screen is illuminated using a beam of electrons traveling at 7.50×106 m/s in a 1.75×10?2 T magnetic field. find the direction of the acceleration of the electron
A charge of -2.05 nC and a charge of -6.20 nC are separated by a distance of 70.0 cm. Find the position at which a third charge of +7.20 nC can be positioned ( from the -2.05 nC charge) so that net electrostatic force on it is zero.
A total of 31 bright and 31 dark Newton's rings (not countingthe dark spot at the center) are observed when 550 nm light fallsnormally on a planoconvex lens resting on a flat glass surface. How much thicker is the center than the edges
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