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Two identical blocks each of mass M are connected by a light inextensible string and can move on the surface of a rough horizontal table. The blocks are being towed at constant speed in a straight line by a rope attached to one of them. The tension in the tow rope is T0. What is the tension in the connecting string?
The tension in the tow rope is suddenly increased to 4T0. What is the instantaneous acceleration of the blocks and what is the instantaneous tension in the connecting string?
water enters an adiabatic turbine steadily as a saturated vapor at a pressure of 5 mpa and exits at a pressure of 0.1
A 0.3-L glass of water at 20°C is to be cooled with ice to 5°C. The melting temperature and the heat of fusion of ice at atmospheric pressure are 0°C and 333.7 kJ/kg, respectively, and the density of water is 1 kg/L.
In an Egg Drop competition, one would like to compute the time history of the velocity of the designed egg protection system, which has a mass of .5 kg, an initial velocity of zero, and a drag proportional to the velocity( D = C_d * V, where C_d = .1..
a power plant using steam as the working fluid operates on a rankine cycle. the temperature at the condenser exit is
An adiabatic piston cylinder contains 1 kg of R-134a. Initially the conditions inside the piston are 200 kPa and 0 degrees C. An electric heater inside the device runs with constant voltage of 110 V and a constant 0.1A of current for one hour.
air is compressed in a steady-flow compressor via a polytropic process from 15 psia and 60ordmf state 1 to 75 psia and
a. What is the melting point at standard conditions for ammonia? Boling point is given -33.4C. b. What is the enthalpy change for boiling ammonia at 0C?
air in a piston-cylinder assembly undergoes a process from state 1 where t1 300 k p1 100 kpa to state 2 where t2500 k
Calculate the average mass transfer convection coefficient hm for the evaporation process. Calculate the average heat transfer convection coefficient h. Do the values of hm and h satisfy the heat-mass analogy?
a piston-cylinder device contains steam initially at 1 mpa 450degc and 2.5 m3. steam is allowed to cool at constant
Canal effect figure shows an anchored barge that extends across a canal by distance d = 30m and into the water by distance b = 12m. The canal has a width D = 55m, & water depth H = 14m, and a uniform water-flow speed vi = 1.5m/s.
for steel cp 135 jkg-k a 4.5x10-6 ok density 7.85 gcm3 e 207 gpaa. a 1 m long steel rod 10 cm in diameter is heated
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