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Question: An experiment is performed to check the equivalent length of a standard elbow in a galvanized iron pipe system. The pressure drop p1-p2 between two taps 10 ft on either side of the elbow is found to be 11 psig when the mass flow rate of water is 26 lbds. Calculate the equivalent length of the elbow
Two dogs pull horizontally on ropes attached to a post; the angle between the ropes is 60.0 degree. Find the magnitude of the resultant force
You land on an unkown planet and start doing some physics experiments. What does therock weight on that planet
Suppose the speed of light in a vacuum were only 25.5 mi/h. Find the length of the bicycle being ridden at a speed of 20.0 mi/h as measured by an observer sitting on the park bench, given that its proper length is 1.59 m.
the binding energy for chromium metal is 4.37 ev. what wavelength of radiation must be used to eject electrons with a
You are shining ultraviolet light on a gas of an unknown element. You know that an electron starts in a ground state with an energy of -18.20 eV. What is the energy of the first photon emitted
A ball falls straight down onto a wedge that is sitting on frictionless ice. The ball has a mass of 3.33 kg, and the wedge has a mass of 5.11 kg. The ball is moving a speed of v = 4.47 m/s when it strikes the wedge, which is initially at rest. a) Ass..
A rocket-powered hockey puck has a thrust of 1.5 N and a total mass of 1.0 kg. How far does the puck land from the base of the table
calculate the crystal thickness pd df prf prp spl period and distance to reflector if a 3 cycle pulse emitted from a 3
find the angular displacement of the propeller.
Calculate the molar mass of the unknown. Density of acetone is 0.7851 g/mL and the value of ebullioscopic constant Kb may be found in Table 8.2.
It is said that Galileo discovered a basic principle of the pendulum - that period is independent of the amplitude - by using his pulse to time the period of swinging lamps in the cathedral as they swayed in the breeze. assume that one oscillation..
A typical laboratory centrifuge rotates at 4500 rpm. For comparison, find what is the magnitude of the acceleration a test tube would experience if dropped from a height of 0.8 meter and stopped in a 1.0 ms long encounter with a hard floor
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