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1. water is flowing smoothly in a closed pipe system. At one point the speed of the water is 3.0m/s, while at another point 2m higher the speed is 5.0m/s.
(a) if the pressure is 50kPa at the lower point, what is the pressure at the higher point?
(b) What would the pressure at the upper point be if the water were to stop flowing and the pressure at the lower point were 40kPa?
(c) Determine the volumetric flow rate and the cross sectional area of the tube at the higher point if the cross sectional area at the lower point is 30cm squared.
2. a small glass plate of 250cm squared is sliding on a horizontal flat surface covered by water layer of 3mm thick. find the force required to move the plate at a constant velocity of 0.1m/s. the viscosity of the water is 10 to the minus 3 Pas.
3. the blood flow through a large artery in a dog is diverted through a venturi flow meter. the wider part of the flow meter has an area A1=0.08cm squared, which equals the cross sectional area of the artery. the narrower part of the flow meter is 25Pa. What is the velocity v1 of the blood in the artery? (the density of the blood is 1080kg/m cubed.
the vector position of a particle varies in time according to the expression 5.60 - 6.80 t2 where is in meters and t
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A radio reciever can pick up signals with peak electric fields as weak as 425muV/m. What is the average intensity of such a signal
a 2500-ft long pipeline is required to carry 21.5 cfs ft3sec of water to an industrial client. the limiting pressure
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Because of dissipative forces, the amplitude of an oscillator decrease 5% in 10 cycles. How many cycles does it take for the energy to decrease 5%
A golf ball is hit with an initial velocity of 50 m/s at an angle of 39 degrees above the horizontal. determine the horizontal distance that the golf ball travels
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A transmission line that has a resistance per unit length of4.5*10^-4 ohms/meter is to be used to transmit 5.00MW over 400miles (6.44 *10^5m). WHat fraction of the input power is lost to the line underthese circumstances
A rectangular boat (4.5 meter long, 2.0 meter wide and 0.3 meter high), is overloaded such that the water level is just 1.0 c. Determine the combined mass of the people in the boat
A body of mass 12kg is moving with a velocity of 1m/s.Calculate the force required to stop it in 10s. how far will it travel before coming to rest
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