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If the glas is shaken, it will be observed that the water level remains the same, but the level of the sand decreases. If this level now indicates a total volume of 128 cm3 , calculate the porosity and the void ratio after shaking.
for a brittle material that has a crack of length 0.04mm and flexural strength and elastic modulus values of 88.1 mpa
A steel ring of mean diameter 250 mm has a square section 2.5 mm by 2.5 mm. it is split by a narrow radial saw cut. the saw cut is opened up further by a tangential separating force of 0.2 N. calculate the extra separation at the saw cut. E = 200G..
two kg of nitrogen at 40degc and 200 kpa are contained in a frictionless piston-cylinder device. the nitrogen is
Derive an equation for the lines of constant declination in a sunpath diagram, for example, Figure 2.12. Check your equation by plotting a few declination lines on a piece of polar coordinate graph paper.
A paper mill processes rolls of paper having a density of 984 kg/m3. The paper roll is 1.50 m outside diameter (OD) x 22 cm inside diameter (ID) x 3.23-m long and is on a simply supported, hollow, steel shaft. Find the shaft ID needed to obtain a max..
refrigerant 134-a enters a compressor as a saturated vapor at 200 kpa at a rate of 0.04 m3s. the power input to the
consider a hot automotive engine which can be approximated as a 0.5-m-high 0.40-m-wide and 0.8-m-long rectangular
the combined mass of the motorcycle and rider is 160 kg. the motorcycle starts from rest at t 0 and moves along a
Evaluate thermal efficiency of the cycle
An aluminium casting 2 cm cubed is at 800 degrees Celsius and is to be air quenched in 30 degree Celsius air having convective heat transfer coefficient of 50 W/m^2*k determine
Electromagnetic waves (which transfer electromagnetic energy) do not need any medium to propagate. EM waves travel forward due to vibrations of the electric field and magnetic field vectors. Example : Light waves are EM waves.
Air enters an automotive supercharger at 100 kPa and 300 K and is compressed to 150 kPa. the efficiency is 70%. What is the required work input per kg of air?
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