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The drawing shows a device that can be used to measure the speed ofa bullet. The device consists of two rotating disks, separated by adistance of d = 0.680 m, and rotating with an angular speed of 65.0rad/s. The bullet first passes through the left disk and thenthrough the right disk. It is found that the angular displacementbetween the two bullet holes is θ = 0.200 rad. From these data, determine the speed ofthe bullet.
A cancer patient is undergoingradiation therapy in which protons with an energy of 1.2 MeV areincident on a 0.25 kg tumor. How many protons are absorbed by the tumor
In a parallel plate capacitor, two plates are being discharged by a constant current. Each plate has a radius of 4.0 cm. During the discharging, at a point between the plates at radial distance 2.0 cm from the central axis, the magnetic field has ..
Two balls of radius 2.00 mm have a separation between theircenters of 5.33 cm. The same electric charge is placed on bothballs so that there is a repulsive force between them of2.65 N. Assume that the charge is uniformlydistributed over each ball.
Several children are on a sled pulled by a four-wheeler across a level snow-covered field. determine the work done on the sled by the tension in the rope in 10.0 s
One block (m1= 250g) is on a smooth table and connected to amassless string. The string continues over a massless,frictionless, pulley and down towards another block (m2=50.0g) thathangs from the table at the other end of the same string.
Joe is 0.500 m from the right end and weighs 920-N. Given that the scaffold is in rotational and translational equilibrium, what are the forces on each cable.
Helium (He), a monatomic gas, fills a 0.012 m3 container. The pressure of the gas is 6.90x 10^5 Pa. How long would a 0.25 hp engine have to run (1 hp = 746 W) to produce an amount of energy equal to internal energy of this gas.
q1. horse races once around a circular track in a time of 176 s with a speed of 26 ms. what is the radius of the
A 10.2-g bullet is fired into a stationary block of wood having mass m = 4.92 kg. The bullet imbeds into the block. What was the original speed of the bullet
A circular loop of wire with 10 turns, radius 0.241 m and resistance 0.235 Ohms is connected to a 13.1 V power supply. find The magnetic field at the center of this loop
The frequency doubled output of a Nd3+ YAG laser has a wavelength of 532nm. If each pulse of light has a total energy of 0.550J and the repetition rate of the laser is 30Hz, how many photons does the laser emit at 532nm in 3 minutes?
neon sign requires 12,000 V to operate which is supplied by a transformer. If the primary on the transformer has 10 turns and is connected to a 120-V outlet, how many turns does the secondary have
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