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A michelson interferometer is used with a helium-neon laser of wavelength 628.8 nm. A glass-walled chamber of interior length 1.005 cm is placed in one of the beams and the position of the mirror is adjusted until bright light is observed at the detector. The glass chamber is then evacuated. During the evacuation, the viewed light changes from bright to dark and back to bright nine times. What is the refractive index of air?
What is the new frequency of the string that was tightened. find the magnitude of the net force acting on the car during this time.
A 0.43 kg particle moves in an xy plane according to x(t) = - 13 + 4 t - 3 t3 and y(t) = 26 + 9 t - 7 t2, with x and y in meters and t in seconds. what is the angle of the particle's direction of travel
You have a mass of 87 kg and are on a 50-degree slope hanging on to a cord with a breaking strength of 221 newtons. Illustrate what must be the coefficient of static friction to 2 decimal places between you and the surface for you to be saved fro..
A simple 2.32 m long pendulum oscillates. The acceleration of gravity is 9.8 m/s2. How many complete oscillations does this pendulum make in 5.58 min
There is a uniform charge distribution of lambda=7.65*10-8 C/m along a thin wire of length L=5.67 cm. compute the magnitude of the electric field at the center of the semicircle
Suppose Fuzzy, a quantum-mechanical duck, lives in a world in which h = 2?J · s. What is the minimum uncertainty in the duck's speed
A 146 gram baseball is hit toward the left by a bat. The magnitude of the force the bat exerts on the ball as a function of time is shown in the figure below (Figure 1) .
When monochromatic light is being used with a certain diffraction grating, it is found that the first-order maximum occurs at 8°. What is the highest order of maximum that can be observed
The spring is kept from pushing them apart, since they are holding each other. When they release their arms, Al moves off in one direction at a speed of 1.16m/s, while Jo moves off in the opposite direction at a speed of 0.973m/s. Assume that frictio..
Two capacitors, one that has a capacitance of 3.90 µF and one that has a capacitance of 12.3 µF, are connected in parallel. Find the potential difference across each capacitor after they are reconnected
In July 2005, NASA's "Deep Impact" mission crashed a 372-kg probe directly onto the surface of the comet Tempel 1, hitting the surface at 37000 km/h. What change in the comet's velocity did this collision produce
A 10 kg box is being pushed up a slippery ramp at and angle of 10 degrees. What force does the man need to apply to the box to keep it traveling up the ramp at a steady speed
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