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A damaged 1200 kg car is being towed by a truck, The air drag, friction, and rolling resistance are negligible. Determine the extra power needed by the tow truck when towing the damage car for:a) Climbing a 30 degrees hill road at a constant speed of 50 km/h, in kWb)Acceleration from a stop to 90 km/h on a level road within 12 seconds, in kW
what will be the work of adhesion between water and 100si plane wsl if a sessile drop of h2o on the si surface forms an
Assuming that the bomb is perfectly insulated what is the temperature of the air in the bomb at the end of filling process? Assume air is an ideal gas with constant specific heats in a ratio Cp/Cv = γ = 1.4 and constant R= 287 J/kg K.
Consider 6.0 kg of austenite containing 0.45 wt% C, cooled to below 727 degrees Celcius (1341 degrees Farenheit).
an ideal brayton cycle with regeneration has a pressure ratio of 10. air enters the compressor at 300k and the turbine
five kilograms of water at saturated liquid phase fills in a piston-cylinder device at 150oc. the device is now heated
Describing realistic applications of mechanical control systems - Feedback Control System Design and implement the controller using mechanical components or its electronic analog.
air at one atmospheric pressure and at 20degc flows across a 12 mm diameter sphere witha free stream velocity of 5 ms.
a gas contained in a cylinder goes through 2 processes in series. first from 1 to 2 is constant pressure compression 50
a gas refrigeration system composed of a turbine a compressor and two heat exchangers is operating at steady state. air
steam with 88.6% quality and a flow rate of 750 kg/s enters a condenser operating @ 75 KPa. Saturated liquid leaves the condenser. How much heat is rejected to the cooling system.
consider the ocean thermal energy conversion system given in the lecture notes. also take into consideration that
A wooden board AB, which is used as a temporary prop to support a small roof, exerts at point A of the roof a 57-lb force directed along BA. Determine the moment about C of that force.
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