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A gas is contained in a vertical, frictionless piston-cylinder device. The piston has a mass of 4 kg and a cross-sectional area of 40 cm2. A compressed spring above the piston exerts a force of 60 N on the piston. Atmospheric pressure is 100 kPa and g = 10m2/s.
a. Draw a free body diagram of the forces on the piston
b. Determine the pressure inside the cylinder?
c. What is the gage pressure in the cylinder?
Explain the construction of a electromagnetic velocity sensor and explain its working. In a bike speedometer the wheel diameter is 80cm what is the frequency of velocity sensor, which gives 1 pulse per rotation of wheel at a speed of 80Km/H?
In an experiment 70 gram of ice at 0 degrees Celsius is dropped into 300 gram of water at 50 degrees Celsius. what is the final temperature of thermal equilibirium
After a hard rain, you walk out into the parking lot and notice an oil sheen on top of a puddle of water. when viewed from directly above, What wavelength of light is transmitted into the water
What is the value of the static friction.
A man wolks up a flight of stair, his power output is P. he runs up the same stairs with twice the speed. What's new power output
Water at 20°C exits a circular tap moving straight down with a flow rate of 10.1 cm3/s. If turbulent flows are characterized by Reynolds numbers above 2300 or so, how far does the water have to fall before it becomes turbulent
Assume that you have two objects, one with a mass of 5 kg and the other with a mass of 17 kg, each with a charge of ?0.011 C and separated by a distance of 8 m. What is the electric force that these objects exert on one another? Answer in units of..
Two spherical objects with a mass of 8.05 kg each are placed at a distance of 2.31 m apart. How many electrons need to leave each object so that the net force between them becomes zero
The rear axle of a truck is 2.5 m long. If the truck is moving at 28 m/s, what emf is induced between the ends of the axle
A 1.5 m cylinder of radius 1.1 cm is made of a complicated mixture materials. Its resistivity depends on the distance x from the left and obeys the formula p(x)=a+bx^2, What is the resistance of the rod
The racket is a potential-energy barrier whose height is the energy of the slowest string-breaking ball. Suppose that a 100 g tennis ball traveling at 220mph is just sufficient to break the 2.0-mm-thick strings.
The squadron commander has the mandate that the database update should be complete in less than one minute. If the topo database is 20 GB, and link is SONET, what is the minimum standard rate necessary.
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