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1.A 2-mm particle has a specific gravity of 2.7. What is it'sspecific surface in m2/g if the particle is a perfectsphere? calculate specific surface.
2.Immediately after the bouncing golf ball leaves the floor itscomponent of velocity are Vx= 0.662 m/s and Vy= 3.66 m/s. determinethe horizontal distance from the point where the ball left the floor to the point where it hits the floor again. the ball leaves the floor at x=0, y=0. determine the ball's y coordinate as afunction of x.
If a car engine is turning at 4000 rpm, the transmission gear ratio is 3:1 and the final drive ratio is 4:1. (a) what is the speed in rpm of the car wheels and (b) the vehicle speed if the tire radius is 8 inches
What are the basic assumptions of the 'traffic flow model' and 'capacity model' used in signal timing design. Discuss.
Assume to just using coal as an electric energy source. Take efficency as %50 for average power plant.If the carbondioxide level is 400 ppm by volume now, what will be the carbondioxide level 10 years later
The post is embedded into a concrete footing so that it is fixed supported. If the reaction of the concrete on the post can be approximated by the distributed loading, determine the intensity of w1 and w2
Vehicles begin to arrive at a toll booth at 850 am with an arrival rate of x(t) = 4.1 + .01t (with t in min and x(t) in veh /min.) The toll booth opens at 9am and processes vehicles at a rate of 12 per minute throughout the day. Assuming D/D/1 que..
Q. What is the main objective of NASA's Mars Science Laboratory (MSL) mission? When was it launched and when and where is it scheduled to land on Mars? Explain the major differences between this mission and Mars Exploration Rovers (MER) mission?
Determine the thickness of the viscous sublayer in a smooth 20 cm diameter pipe, if the Reynolds number is 25000.
0.1 moles of an ideal gas contained in a piston-cylinder assembly undergoes the heat pump cycle shown below. The cycle operates counter-clockwise. Evaluate the coefficient of performance.
a pump is used to send water from one reservoir to another elevated reservoir. The pipe diameter is 0.120 m. The head-loss through the valve and pipe is given by equation hL =Bv12 2g
a town requiring 2 cms ofwater has two sources, a local well with 15 g/m^3 of a contaminantand a distant surface water source with 2 g/m^3 of the contaminant.
Moist air at standard conditions is at a dry bulb temperature of 80 degree F and a relative humidity of 50%. It is cooled to 50 degree F. Use the psychromtric chart to determine: a- The energy removed from the air after it is cooled in BTU/lb of d..
Here is some information about a professor salary index (PSI) Year PSI Change in PSI 2004 82 3.22% 2005 89 8.50 2006 100 a 2007 b 4.00 2008 107 c 2009 116 d 2010 e 5.17 2011 132 7.58
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