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A weight W is to be held aloft by wrapping a rope around a horizontal stationary pole. The coefficient of static friction is 0.33. A force of 20 lb will be applied to the free end of the rope. Write a program to generate a tabulation of weights that could be so supported as a function of the number of wraps around the pole, ranging from 1 wrap to 3 wraps, in steps.
Water at a local bulk temperature of 10o C flows through a 3-cm-ID pipe at 1 m/s. The pipe walls are kept at 70o C and the flow is fully developed. Evaluate h and the local value of / b dT dx . The relative roughness of the pipe is 0.001.
The flow around a model of a turbine blade is investigated. The model is five times larger than the prototype. A maximum pressure of 4 psi is measured at the leading edge, a maximum velocity of fps is measured near the top of the blade, and a small d..
Air enters a compressor operating at steady state at 1 bar, 228C with a volumetric flow rate of 1 m3/min and is compressed to 4 bar, 1778C. The power input is 3.5 kW. Employing the ideal gas model and ignoring kinetic and potential energy effects,..
water vapor at 800 lbfin.2 1000 degrees f enters a turbine operating at steady state and expands to 2 lbfin.2 the mass
estimate the convective heat-transfer coefficient for natural convection from a horizontal steam pipe. the outside
For what types of experiments is the instrument useful?
the potential energy term which describes the bonding between dissimilar ions in an ionic solid may be given as
Write a function called year2016 that returns a row-vector of struct-s whose elements correspond to the days of a month in 2016 as specified by the input argument. If the input is not an integer between 1 and 12, the function returns the empty array...
A rigid tank contains 5 kg of saturated liquid-vapor mixture of H2O at 100 kPa and quality of 24.4%. A heat transfer process occurs until the H20 in the tank is a saturated vapor.
The magnitude of the pressure wave is not to be greater than 600 kPa. Determine the percent decrease of ?ow rate tolerable during the valve closure and the period of the water hammer oscillation.
Gasoline flows from a 0.25 m diameter pipe in which the pressure is 250 kPa, that contracts into a 0.125 m diameter pipe in which the pressure is 100 kPa. If the pipes are horizontal bad viscous effects are negligible, determine the flow rate (Q). (G..
Determine the x, y, and z components of moment that theshaft exerts on the blades as a function of #. Consider each blade as a slender rod of mass m and length l.
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