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The system is released from rest in the position shown. Calculate the tension T in the cord and the acceleration a of the 30-kg block. The small pulley attached to the block has negligible mass and friction. (Suggestion: First establish the kinematic relationship between the accelerations of the two bodies.)
Blocks D and F weigh W1 each and block E weights W2. Determine the sag S for equilibrium. Neglect the size of the pulleys.
A heat pump that operates on the ideal vapor compression cycle with refrigerant 134a is used to heat water from 16 to 56 degrees Celsius at a rate of 0.20kg/s. The condensor and evaporator pressures are 1.5 and 0.35 Mpa, respectively. Determine the p..
A construction firm purchased 3 tractors from a certain company. At the end of the fifth year, let E1, E2, E3 denote, respectively, the events that tractors no. 1, 2, and 3 are still in good operational condition.
A 4x4 carries an axial compressive force caused by dead, love, and roof live loads. Lumber is No. 1 Douglas Fir-Larch. Cm = 1.0 , Ct = 1.0, Ci = 1.0. The unbraced length of the member is 12 ft.
Plotted property surveys usually show the direction of property lines as bearings and not azimuths. True or false give reason to answer?
The cash flow associated with landscaping and maintaining a certain monument in Washington, D.C., is $100,000 now and $50,000 every 5 years forever. Determine its perpetual equivalent annual worth
You are paying into a mututal fund that earns 6% compound interest. If you are making an annual contribution of $10000, how much will be in the funds in 20 years What if the fund makes 10% What if it loses 5% per year
For the vector 100i+150j-300k kN determine its magnitude, the direction, angle alpha, beta, and gamma and the unit vector. magnitude = 350 kN angle alpha is suppose to = 59 degrees
Prove that Ev=kP for an isentropic fluid process given that constant=P/p^k, where p is the density (roe), P is the pressure, k is the ratio of specific heats.
Design the shear reinforcement, vertical U stirrups for independent T beam. The beam spans 24 ft face to face between simple supports, has an effective depth d= 31 in.
An irrigation micro-tuberises from Point A at the outlet of a supply main, up to the top of a hops trellis(Point B), before dropping down to Point C and extending on to supply an irrigation emitter.
A tank containing acetone at 20 oC has a drain pipe connected vertically at the bottom. The pipe is made of galvanized iron, 0.5 in NPS Schedule 40 with length L= 2m. The acetone depth in the tank is H= 5 m.
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