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Two loudspeakers in a plane, 5 m apart, are playing the same frequency. If you stand 14 m in front of the plane of the speakers, centered between them, you hear a sound of maximum intensity. As you walk parallel to the plane of the speakers, staying 14 m in front of them, you first hear a minimum of sound intensity when you are directly in front of one of the speakers. What is the frequency of the sound? Assume a sound speed of 340 m/s.
Hz.
If the shortest wavelength produced by an x-ray tube is 0.441 nm, what is the voltage applied to the tube
Calculate the net work done on Gas
The nucleus of a hydrogen atom is a single proton. The radius of a proton is approximately 1 fm. What is the approximate volume of a proton
their debt flotation costs are currently estimated to be 4% of the issue's value. GST's federal-plus -tax rate is 40%. Illustrate what is the dollar floatation cost on the new issue?
write down Newton's Second Law for the velocity of the cube.
A large boulder rests on a cliff 500 m above a small village in such a position that, if it should slide off, What is the final impact velocity of the boulder
A 28.0-kg block is connected to an empty 2.46-kgbucket by a cord running over a frictionless pulley. Calculate the mass of sand added to the bucket
A tank having a volume of 0.10 m3 contains helium gas at 155 atm. How many balloons can the tank blow up if each filled balloon is a sphere 0.30 -m in diameter at an absolute pressure of 1.3 atm.
At its Ames Research Center, NASA uses its large "20-G" centrifuge to test the effects of very large accelerations ("hyper gravity") on test pilots and astronauts. In this device, an arm 8.84 {rm m} long rotates about one end in a horizontal plane..
How several cubic meters of water are removed from storage under an area of 1 million square meters when the average head decline in this area is 2 meters.
A 1350 kg car accelerates uniformly from 35.5 km/h to 75.5 km/h over 250 m. Determine the time taken for the car to accelerate
Two fun-loving otters are sliding toward each other on a muddy (and hence frictionless) horizontal surface. One of them, of mass 8.00kg, How much mechanical energy dissipates during this play
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