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1. Air at 35-C and 120 kPa enters a 20·50 cm sheet metal conduit at a rate of 6 m3=s. What pressure drop is to be expected over a length of 120 m?
2. A pressure drop of 6000 Pa is measured over a 20 m length as water at 30-C flows through the 2 · 6 cm smooth conduit. Estimate the flow rate.
lightning occurs when there is a flow of electric charge principally electrons between the ground and a thundercloud.
What weight of water is displaced by a 100-ton floating ship? What is the buoyant force that acts on the ship
You need to design a 1.5 Amp fuse that "blows" if the current exceeds 1.5 A. Find what diameter wire of this material will do the job
q1. a sailboat is running along a straight course with the wind providing a constant force of 55 lb. the only other
Find a geometrical arrangement of one proton and two electrons such that the potential energy of the system is exactly zero. How many such arrangements are there with the three particles on the same straight line? You should find that the ratio..
A 1.00 kilogram, horizontal, uniform tray is attached to a vertical ideal spring of force constant 190 N/m and a 270 gram metal ball is in the tray. Find how much time elapses between releasing the system at point A and the ball leaving the tray
a uniform 1 t magnetic field is directed vertically downward in a region of space. a proton traveling 105 ms in a
pulsars are neutron stars that emit x rays and other radiation in such a way that we on earth receive pulses of
a 90 ohm resistor has a current of .6A and is connect in series with a 150 ohm resistor. What is the emf of the battery to which the resistors are connected
The Beretta Model 92S (the standard-issue U.S. army pistol) has a barrel 127 {\rm mm} long. For how long is the bullet in the barrel
A force with a magnitude of 452N is used to bring an object with a mass of 56.0 kg moving at a velocity of 155m/s. How long will it take to bring the object to a full stop.
A rectagular boat is overloaded so that the water level (in fresh wateer) is just one centimeter (1.0cm) below the top of the boat, what is combined mass of all the people and the boat combined
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