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A piston/cylinder maintaining constant pressure contains 0.5 kg water at room temperature, 20?C, 100 kPa. An electric heater of 500 W heats the water to 500?C. Assume no heat losses to the ambient air and plot the temperature and total accumulated entropy production as a function of time. Investigate the first part of the process, namely, bringing the water to the boiling point, by measuring it in your kitchen and knowing the rate of power added.
a. explain how the presence of the collimation error e can be detected in a two peg test operation.b. a b and c are
A room has 10 cotton spinning looms. Once the looms are set up, they run automatically. The setup time is exponentially distributed, with mean 10 minutes. The machines run for an average of 40 minutes, also exponentially distributed.
You are provided that a 33-year record of peak annual flow rates was subjected to a frequency analysis. You are interested in the median value. Thus, for part (a), what is the probability that the probability if the flow rate exceeds the median value..
Consider the plane polar coordinate velocity distribution V_r=C/r, V_0=K/r, V_z=0, where C and K are constants (a) determine if the equation of continuity is satisfied (b) by sketching some velocity vector directions
A cylindrical core, completely saturated with oil up to immobile water saturation, is immersed in water and the measured volume of oil displaced by imbibition of water
A cable is used to support five equal and equidistant loads over a spann of 30 metres. Find the length of the cable required and its sectional area if the safe tensile stress is 140N/mm2. the central dip of the cable is 2.5m and loads are 5kN each.
The velocity of a particle traveling along a straight line is v=(3t^2-6t) ft/s , where t is in seconds. if s=4ft when t=0 determine the position of the particle when t=4s? what is the total distance during the time interval t=0 to t=4s? what is the a..
vehicle manufacturer is considering an engine for a new sedan (Cd=0.34, Af=22ft^2). the car is being designed to achieve a top speed of 100 mi/h on a paved surface at sea level (p=0.002378 slugs/ft^3).
a town is installing a new 10 main to carry drinking water. the onlynbspsection remaining to be installed is a segment
the 70 m tall tower is supported by three cables that exert forces fab fac and fad on it. the magnitude of the force
A circular bar of magnesiuen alloy is 750 mm long. The bar is loaded in tension to an elongation of 6.0 mm, and the load is removed. (a) what is the permanent set of the bar (b) if the bar is reloaded, what is the proportional limit
He is concerned about the high rolling resistance of the units in the sand (RR factor 250lb/ton). What is the rolling resistance?
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