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Think a Michelson interferometer operated by light from a sodium lamp with λNa = 589 nm. Suppose the interferometer is utilized to check the accuracy of a meter stick by moving one of the mirrors a distance of precisely 1.87 m (as determined with the meter stick) and counting bright fringes as they appear at the detector. How many bright fringes will be observed while the mirror is being moved?
A railroad car of mass 3.3 104 kg moving at 4.50 m/s collides and couples with two coupled railroad cars, What is the speed of the three coupled cars after the collision
A figure skater begins spinning counter clockwise at an angular speed of 4.7 π rad/s. during a 4.9 s interval, she slowly pulsher arms inward and finally spins at 8.2 π rad/s. what is heraverage angular acceleration during this time interval?
If a violin string vibrates at 460Hz as its fundamental frequency, what are the frequencies of the first four harmonics
In a certain laboratory experiment a steel ball is released from rest near the top of a 30 incline ramp from vertical height h above the end of the ramp. Determine the magnitude of the linear velocity of the center mass of the sphere at the bottom ..
Ryan throws a tennis ball vertically upward. If the ball returnsto the point of release in 3.5 seconds, what is the speed of the ball as its being released
A 1.50 V battery supplies 0.350 W of power to a small flashlight for 20.0 min. How much charge does it move
The 3.10 kg, 34.0-cm-diameter disk is spinning at 350 rpm How much friction force should the brake apply to the rim to bring the disk to a halt in 2.20 s.
as noted in the chapter the cosmic microwave background radiation fits the planck equations for a blackbody at 2.7 k.a
A rescue helicopter lifts a 70.8-kg person straight up by means of a cable. What is the tension in the cable
A particle lives for a little time before breaking apart into other particles. According to this hypothetical man, find how far does the laboratory move before the particle breaks apart
The starter motor of a car engine draws a current of 100A from the battery. The copper wire to the motor is 4.0mm in diameter, How much charge passes through the starter motor
A student stands on a platform that is rotating without friction at 1.2 rev/s. His arms are outstretched and he holds a brick in each hand. what is the new angular speed of the system
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