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A 6-lb block is attached to a cable and to a spring vertically, the cable above and the spring below. The spring constant is k=8 lb/in. and the tension in the cable is 3 lb. If the cable is cut, determine (a) the maximum displacement of the block, (b) the maximum speed of the block.
a piston-cylinder contains 0.8 kg of nitrogen initially at 100 kpa and 27 degrees. the nitrogen is compressed slowly in
A household refrigerator with a coefficient of performance of 2.4 removes energy from the refrigerated space at a rate of 600 Btu/h. Evaluating electricity at , determine the cost of electricity n a month when the refrigerator operates for 360 hou..
determine the critical crack length for an internal crack in a thick 2024-t6 alloy plate that has a racture toughness
the basis of a design project which will be completed. you should therefore think carefully about which of the
the field-circuit resistance and armature-circuit resistance of a 10-hp 115-v motor are 90 ohms and 0.08 ohms
a pipe is made of a material the thermal conductivity of which is simultaneously dependent on radius and temperature
two workstations are being conciered by your company. machine 1 costs 12000 new and 1300 to operate and maintain each
What was the percentage error found between experimental and accepted values and what caused any errors, and how could they be minimised?
a curved nozzle assembly that discharges to the atmosphere is shown. The nozzle mass is 4.5 kg and its internal volume is 0.002 m^3. The fluid is water. determine the reaction force exerted by the nozzle on the coupling to the inlet pipe.
calculate the number of vacancies per cubic meter in some metal at 689degc. the energy for vacancy formation is 0.75
a polytropic process is one in which the pressure p and volume v are related by the formula npvcwhere c is a constant.
a one shell two tube pass surface condenser is required to handle the exhaust from a steam turbine developing 14 300 kw
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