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A diffuser is an adiabatic device that decreases the KE of the fluid by slowing down. What happens to this lost KE?
A man stands on the roof of a 13.0 -tall building and throws a rock with a velocity of magnitude 30.0 at an angle of 42.0 above the horizontal. Calculate the horizontal distance from the base of the building to the point where the rock strikes the g..
A transformer is designed to step down the 209 volts to 30 volts. If there are 446 turns on the input coil, how many turns should there be on the output coil
You are standing in a street intersection watching a (very fast) car approach at a speed of 0.5c. The car first shoots a laser photon torpedo at you and then releases a very fast missile also towards you at a speed of 0.7c as measured from the car. A..
One string of a guitar is 75 cm long. The mass of the string is 8g. What tension must you tune the string to if it is to have a second harmonic frequency of 440 Hz?
As a spacecraft approaches a planet, the rocket engines on it are fired (turned on) to slow it down so it will go into orbit around the planet. compute how long (in minutes) must the engines be fired
A car accelerates uniformly from rest and reaches a speed of22.9m/s in8.95s. Assume the diameter of a tire is58.3cm. What is the final angular speed of a tire in revolutions per second
A 1.60 cylindrical rod of diameter 0.550 is connected to a power supply that maintains a constant potential difference of 15.0 across its ends, Find the temperature coefficient of resistivity at 20 for the material of the rod
a cylindrical drum is 2 ft in diameter is 3 ft long and weighs 30 lb when empty. aluminum weights are to be placed
what is the maximum equivalent capacitance that can be obtained by combination of three capacitors of 1.5 microf 2.1
question 1 what is the rms current in an rc circuit if r 5.20 komega c 1.50 uf and the rms applied voltage is 120 v at
A playground Merry-Go-Round has a mass of 291 kg which can be viewed as being uniformly distributed over a disk of radius 2.4 m. What is the new rotation rate assuming the child remains at the rim
The overall magnification of anstronomical telescope is desired to be 24X. if an objectiveof 75cm focal lenght is used, what must be the focal length of the eyepiece
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