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A mass of 6 kg is suspended from a helical spring and produces a static defl ection of 6 mm. The load on the spring is then increased to 18 kg and settles at a new equilibrium position.
It is then displaced through a further 10 mm and released so that system oscillates freely. Determine the frequency of the oscillations, the maximum velocity and acceleration and the maximum tension in the spring.
imagine that the heart acts as a pump. blood enters the heart from the lungs at 6mm hg and leaves to the rest of the
one mole of an ideal gas at 1.0 mpa and 300k is heated at constant pressure till the volume is doubled and then it is
Water Distribution: Assume that the pipe has a 12” diameter, is plastic with C = 140 and has a total elevation change of 20 ft. How much energy is required per year to pump the water through the pipe to the customer? Assume that your pump is 80% effi..
the braking machanism on an aircraft carrier can bring a 2 ton plane to a stop in a time of 1.8 seconds. the plane
you have been asked to design an experiment to measure aerodynamic forces on a building using a 180 scale replica of
A novelty company was producing 220,000 items for $3.80 each. Theysold these for $6.00 each. Recently, the demand for the items has dropped to180,000 units at that $6.00 price. The company can reduce production to 180,000units. Each unit would cos..
in a certain process the working fluid is cooled until 200 btulbm has been extracted. during this process 200 btulbm is
steel rods of 0.05m diameter are heat treated by being passed through a heat-treating furnace in which the atmosphere
for steel cp 135 jkg-k a 4.5x10-6 ok density 7.85 gcm3 e 207 gpaa. a 1 m long steel rod 10 cm in diameter is heated
Which exerts more pressure: 25 feet of Acetaldehyde with a specific gravity of 1.59 or 25 feet of water? How did you know? Calculate the pressure.
distance per tank of gas a car with a 20-gallon gas tank averages 21.5 miles per gallon when driven in own and 26.8
A similar measurement is made applying the force parallel to one of the cube axes. Explain why the two measurements give different values of the elastic modulus.
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