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A sinusoidal wave of amplitude A1 approaches a and travels through a region of the string in which the mass per unit length changes gradually from mu_1 to mu_ 2. It can be shown that , in such a situation, there is no reflection provided the distance over which the change occurs is large compared with the wavelength. On this assumption , show that final amplitude A 2 is given by
(A1/A2)=(mu_1/mu_2)^(1/4)
If the ropes supporting the rings are attached to ceiling directly above, what is the tension in each rope.
Two identical brass balls mounted on wooded posts initally have different amounts of charge, one +3uC and the other +15uC. What is the final charge in each ball
a ball of mass .150 kg is dropped from rest from a height of 1.25m. it rebounds from the floor to reach a height of 1.25 m. what impulse was given to the ball by the floor
On a day when a thunderstorm is brewing, there could be a vertical electric field of magnitude of 2.00×104 N/C. Calculate the electric flux through the bottom of the car
Explain why you think the Petroleum Marketing Practices Act was not passed until 1979 even though gasoline service station franchise arrangements had been in existence for decades before 1979.
A magnifying glass of focal length 150. mm is used to examine an old manuscript. What is the maximum magnification given by the lens
Tritium with a half-life of 12.3 years is used to verify the age of expensive brandies. how many years ago was it produced
A satellite has a mass of 110 kg and is located at 1.96 106 m above the surface of Earth, What is the magnitude of the gravitational force on the satellite
A weightless spring with spring constant k1 hangs from an elevated support. Find the total distance the pair of springs is extended
A microwave oven operates at 2.4 GHz with an intensity inside the oven of 2350 W/m^2. What is the amplitude of the oscillating magnetic field
An airplane is flying with a velocity of 87.0m/s at an angle of 20.0 degrees above the horizontal. How far from the dog will the suitcase land
An artificial satellite circling the Earth completes each orbit in 118 minutes. Find the altitude of the satellite
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