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A flying buttress transmits a load P = 25 kN, acting at an angle of 60° to the horizontal, to the top of a vertical buttress AB (see figure). The vertical buttress has height h = 5.0 m
and rectangular cross section of thickness t = 1.5 m and width b 1.0 m (perpendicular to the plane of the figure). The stone used in the construction weighs = 26 kN/m3 . What is the required weight W of the pedestal and statue above the vertical buttress (that is, above section A) to avoid any tensile stresses in the vertical buttress?
A helmet has an open cell polystyrene foam liner that is design to absorb the kinetic energy from an impact. The Foam has a relative density of 10% and the young module of the solid polystyrene that the foam is 1.5Gpa. How much energy per volume in J..
consider a stream power plant that operates on the ideal reheat rankine cycle. the plant maintains the boiler at
Calculate air/fuel ratio by weight, Air /fuel ratio by volume, Weight of dry exhaust gas formed per unit of fuel and Mole of oxygen in the exhaust gas per unit weight of fuel.
A tensile specimen of cartridge brass sheet has a cross section of 0.320 in. × 0.120 in. and a gage length of 2.00 in. Calculate the engineering strain that occurred during a test if the distance between gage markings is 2.35 in. after the test.
Determine the angle through which the wheel may be slowly turned about its horizontal axis through O, starting from the position shown, before the rod begins to slip.
A steam power generation plant produces 200mw of power. Steam leaves the dealer at 150 bar and 650°c. After expansion through the first stage turbine to a pressure of 40 bar, 15% of the steam is extracted to feed the water heater. The remaining steam..
Calculate the heat transfer per kilogram of air between sections (1) and (2), and the stagnation pressure at section (2).
Suggest a reasonable number of significant digits for reporting the following common values and give some indication as to your reasoning: a. Your body weight for a passport b. A car's fuel usage (use liters per 100 km) Strain gauge Eo Excitation vol..
a compressor used to deliver 2.10 kgmin of high pressure air requires 8.087 kw to operate. at the compressor inlet the
Refrigerant 134a enters a heat exchanger in a steady state refrigeration system as saturated vapor at 0 °F and exits at 20 °F with no change in pressure.
The barrel and tube are filled with water (to the top of the tube). Calculate the ratio of the hydrostatic force on the bottom of the barrel to the gravitational force on the water contained in the barrel. Why is that ratio not equal to 1.0? (You ..
a pressure vessel made of aluminum alloy 2024?t351 sy 325 mpa and kc 36 mpa?m12 is manufactured for a safety factor
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