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An ultrasound unit sends a 2.4 MHz sound wave into a 35cm long tube filled with an unkown liquid. A small microphone rigtt next to the ultrasonic generator detects the transmitted w3ave and teh sound wave that has reflected off the far end of the tube. The two sound pulses are 4.7 divisions apart on an oscilloscope for which the horizantal time sweep is set to 100 microsecond/division. What is the speed of the sound in the liquid?
a pilot can withstand ten times the acceleration due to gravity 10 gs if he is wearing a special tight-fitting g-suit
Write down the original position of the system
A skier of mass 64 kg is being towed up a slope ( µ = 15 ±) by a towrope at a constant speed of 3 m/s, what is the force (in N) that the towrope applies to the skier
A beam of light in air strikes a slab of glass (n= 1.50) and is partially reflected and partially refracted. Find the angle of incidence
Assume the volume of the tank and the temperature of gas remain constant all through this operation.
The effectual coefficient of kinetic friction is 0.37. Compute the work done by the man on the piano.
A system with a volume of 100L is initially empty, and then it is filled completely with water. What fraction of water exists as a liquid when 100kg are put into the system
Two streams of air, one at 1 bar, 27C and velocity of 30 m/s and the other at 5 bar, 227C and 50 m/s velocity, Find the velocity of the stream issuing out of the nozzle
An object moves with constant acceleration 4.35 m/s2 and over a time interval reaches a final velocity of 11.0 m/s. What is the distance it travels during this interval
Gold, which has a density of 19.3 g/cm3, is the most ductile metal and can be pressed into a thin leaf or drawn out into a long fiber.
What is tension in the wire
A 0.25 harmonic oscillator has a total oscillation energy of 9.9 J. If the oscillation amplitude is 20.0 cm, what is the oscillation frequency?
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