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The town of Chapel Hill, North Carolina, has about 100,000 people (including the students). The Smith Center has a volume of about 180,000 cubic yards. If the town of Chapel Hill used the Smith Center as a refuse disposal site, how long would it take to fill up? Make all necessary assumptions.
the force f 30i 20j - 10k n. a determine the magnitude of the moment of f about a. b suppose that you can change the
a catapult has two rubber bands each rubber band has a rectangular cross-section with a width 8 mm and thickness of 2
the turbine rotor in the power plant of a ship as shown in fig. 3 has a weight of 12.75 kn with centre of gravity at g
In a cold winter day, wind blows over the wall of a house at 40 km/h. The outside air temperature is reported to be -7°C. The wall is 8 m long and 5 m height whose surface temperature is 10 °C.
A roller coaster and its occupant’s have a combined mass of 800 kg. At a height of 70 m, the roller coaster has approximately zero speed. At the bottom, at maximum speed, a piston/cylinder apparatus is compressed adiabatically in order to bring the r..
What is the surface absorptivity to direct solar radiation that is incident at an angle of 45° from the normal? What is the absorptivity to diffuse irradiation?
The tube diameter is 2 mm, and the rate of draining is found to be 1.9 cm3 /s. What is your estimate of the fluid viscosity? Is the tube flow laminar?
cold water enters a steam generator at 20c is vaporized at 165c and exits as a superheated vapor at 350c. the steam
A balloon behaves so the pressure is P = C2V1/3, C2 = 100 kPa/m. The balloon is blown up with air from a starting volume of 1 m3 to a volume of 3 m3. Find the final mass of air assuming it is at 25oC and the work done by the air.
a large tank is used to calibrate the reading from a flow meter. measurements of the system weight as a function of
Describe the application and identify ALL of the key mechanical property requirements of the material in the application. What are the important failure mechanisms that MUST be considered in material selection for this application
The 0.6-kg mass is supported by two arms of negligible mass. The angle ? of the arms can be varied by changing the force F acting on the slid- ing collar. When ? = 70?, the assembly is rotating freely about the vertical axis with the angular velocity..
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