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a particle of weight 24N is attached to one end of a string 1.3m long whose other end is fastened to a point on a vertical fall. a horizontal force acting on the vertical keeps it in equilibrium 0.5m from the rope. calculate the tension in the string and the magnitude of the horizontal forces
At what depth should it be to avoid cavitation at 30 m/s?
explain why the modulus of elasticity of simple thermoplastic polymers such as polyethylene and polystyrene is expected
An isolated system consists of a closed copper vessel of mass 0.1 kg, containing 1 kg of liquid water, each initially at 5°C, immersed in 20 kg of liquid water, initially at 20°C. The system is allowed to come to equilibrium. Determine the final temp..
Advertising. A company is trying to introduce a new product to as many people as possible through television advertising in a large metropolitan area with 2 million possible viewers.
Water is the working fluid in a Rankine cycle. Superheated vapor enters the turbine 10MPa, 480 celcius, and the condenser pressure is 6kPa. The turbine and pump have isentropic efficiencies of 80 and 70% respectively.
A double pipe heat exchanger uses water at 15 °C to cool 100 °C fluid (Cp = 2.63kj / kg °K) the water and fluid rates are each 0.5 kg / s . What is the maximum possible heat transfer rate? What effectiveness of the heat exchanger?
steam enters a 10000 hp turbine at 1600 lbfin2 and 1400 f and exits 10 lbfin2 and a quality of .9. the measured heat
a wire of radius ri is coated by a process described above. it is fed to a reservoir filled with a newtonian fluid with
If m = 5, as is typical of creep at the low temperatures used for stress relieving, σ o = 5000 psi, E = 10 × 106 psi, and C = 6 × 10-22(psi)-5/h at the annealing temperature, how long would it take for the stress to drop to 2500 psi?
A reaction is found to be 25 times faster at 400 K than at 300 K. Measurements of the temperature exponent yielded a value of 0.7. Calculate the activation energy of the reaction. How much faster will the reaction be at 1000 K?
Create a window apllication in java
Two standard gears in mesh have 48 and 102 teeth, respectively. Their diametral pitch is 10, and the pinion rotates at 60 rpm cw. Determine the center distance between the gears, the pitch diameters, the circular pitch, the pitch line velocity, the l..
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