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Build a mechanically powered vehicle (spring, pulleys, etc.) that weighs no more than 75 N and will travel 10 meters under its own power. Calculate potential energy, kinetic energy, work, and range.
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.
the inside surface of an 8-in-thick common brick wall is maintained at 100 f. thermal conductivity of th brick is 1.0
Identify and explain the principle of two common technologies for protecting buried carbon steel tanks from corrosion. Comment, with reasonable justification
The power input to the compressor is 100 kW. A separate liquid cooling water stream flows through the heat exchanger. All data are for operation at steady state. Stray heat transfer with the surroundings can be neglected, as can all kinetic and po..
a tornado rips off a 100 m2 roof with a mass of 1000 kg. what is the minimum vacuum pressure needed to do that if we
If the engine exerts a traction force of 1/8 of the weight of the train, determine the speed of the train when it has traveled up the slope a distance of 1.1 . Neglect rolling resistance.
An electric arc considered as a black sphere of 5 mm diameter at a temperature of 5000 Celsius is situated 250 mm away from a metal dosk of 100 mm diameter. The disk is oriented at right angle to the normal to the arc and is open to radiation on both..
A flat bar as shown in the figure below is subjected to an axial load F equal to 500 kn. Assuming that the stress in the bar is limited to 200 n/mm^2 determine the thickness of the bar. All dimensions are in mm
Air at 14.7 psia, 50°F (DB), and 60% relative humidity is first heated to 72°F (DB) and then humidified by introducing water vapor (“steam”). The air leaves the humidifying section at 75°F (DB) and 55% Relative Humidity. Plot the process on a Psychro..
the specifications for an automobile fuel pump state that it should pump 1 l of gasoline in 40 seconds with a suction
one car p heading north begins at rest and accelerates with acceleration a. the other car q begins with a velocity of
a steam power plant is to be built to provide 10 mw of electricity. the turbine to be used has an efficiency of 45 and
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