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Consider simultaneously running 500 dissimilar function generator loudspeaker systems, each of which produces a pure sine wave sound of the same amplitude. Oscillator one produces a pure 20 Hz sine wave, oscillator two produces a pure 40 Hz sine wave, oscillator three a pure 60 Hz sine wave ... oscillator 500 produces a pure 10000 Hz sine wave. At time t=0 all the oscillators are in phase.
a. Estimate the value of t for the first time after t=0 at which the volume of the resulting sound would be essentially 0.
b. Would the initial "relatively loud interval" ever repeat? If yes, with what period would it repeat and why? If not, why not?
Consider two systems, each containing an ideal gas with N particles kept at the same temperature, but different pressures P1 and P2. After reservoirs are combined together what is the change of the entropy? Try to solve this problems in few steps:..
An airplane is flying with a velocity of 90 m/s at an angle of 25 above the horizontal. When the plane is a distance 126 straight above a dog that is standing on level ground, a suitcase drops out of the luggage compartment.
A placekicker must kick a football from a point 36.0 m (about 40 yards) from the goal. By how much does the ball clear or fall short of clearing the crossbar
A football player (m=115g) is sitting on the ground. A playerkicks the ball with a force of 36 N. The force acts over a distanceof 25 cm and is along the direction of motion of the soccerball. What is the speed of the ball after being kicked?
A block is pushed up a frictionless 30° incline by an applied force as shown. If F = 25 N and M = 3.0 kg, what is the magnitude of the resulting acceleration of the block
A 2.00-liter aluminum cylinder at 5°C is filled to the brim with gasoline at the same temperature. If the aluminum and gasoline are warmed to 59°C, how much gasoline spills out.
A 3000 kg truck is heading east at 80 mph. A 1000 kg car is heading north at 40 mph. They collide and stick togther. What is the velocity and direction of the car/truck
The planet Neptune has a satellite, Proteus, which travels in an orbit 1.180*10^8 m with a period of 1.12 days. Calculate the mass of Neptune
Consider the motion of a muon as it moves through the Earth's atmosphere. After a time ? = 2.20 multiply.gif 10-6 s, What is the speed of the muon
A suitcase full of platinum sits at thebottom of a lake. A recovery diver finds that as he lifts thesuitcase to the surface, What is the volume of the large suitcase
A 65kg person throws a 0.0410 kg snowball forward with a ground speed of 28.0 m/s. A second person, with a mass of 60kg, catches the snowball. Both people are on skates.
A child throws a stone from the top of a 15 m cliff with a speed of 20 m/s. find its kinetic energy and speed when it lands on the ground
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