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A neon atom (m=20.0 u) makes a perfectly elastic collision with another atom at rest. After the impact, the neon atom travels away at a 55.6o angle from its original direction and the unknown atom travels away at a -50.0o angle. Find what is the mass (in u) of the unknown atom?
An electric motor rotating a workshop grinding wheel at a rate of 9.70 101 rev/min is switched off. How long does it take for the grinding wheel to stop
A series RLC circuit has components with R = 50ohms, L = 0.15H, C = 20uF. The circuit is driven by a 120-V, 60-Hz source. What is the power delivered to the circuit
A circuit consists of a resistor in series with an inductor and an ac generator that supplies an rms voltage of 115 V. Find the average power dissipated in the circuit
A car rounds a 1.15 radius circular track at 82 Find the magnitude of the car's average acceleration
A flat observation screen is placed at a distance of 4.5 m from a pair of slits. The separation on the screen between the central bright fringe and the first-order bright fringe is 0.043 m. Determine the slit separation
question a laser emits a narrow beam of light. the radius of the beam is 1.5 mm and the power is 2.9 mw. what is the
The force has magnitude 5.4 N and is directed at a counterclockwise angle of 103° from the positive direction of the x axis. How much work is done by the force on the coin during the displacement
A speeder tries to explain to the police that the yellowwarning lights on the side of the road looked green to her becauseof the Doppler shift. How fast would she have been traveling
a speedy tortoise can run with a velocity of 10 cm/s and a hare can run 20 times as fast. in a race they both start at the same time but the hare stops to rest for 2 min, what was the length of the race
A motor is designed to operate on 131 V and draws a current of 12.2 A when it first starts up. What is the resistance of the armature coil
Wonder Woman and Superman fly to an altitude of 1650 km, carrying betwen them a chest full of jewels that they intend to put into orbit around Earth. At what speed does the chest impact the surface of the water
A 4.98-kg pendulum bob, at a height of 0.720 m above the floor, is released and swings down to the ground, Find how high up the incline the block will slide
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