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A lever of negligible weight is loosely fitted onto a 75-mm-diameter fixed shaft. It is observed that the lever will just start rotating if a 3-kg mass is added at C. Determine the coefficient of static friction between the shaft and the lever.
An accident occurs when car A rear-ends car B at a stoplight. The mass of car A is 1500kg and the mass of car B is 1000 kg. Car B was initially at rest with the brakes locked. Skid marks indicate car B slid 12 m after the impact. Assuming that the co..
1. The metal rhodium has an FCC crystal struc- ture. If the angle of diffraction for the (311) set of planes occurs at 36.12° (first-order reflec- tion) when monochromatic x-radiation having a wavelength of 0.0711 nm is used, compute (a) the inte..
Determine the work required to deflect a linear spring with a spring constant of 70 kN/m by 20 cm from its rest position.
the electric power needs of a community are to be met by windmills with 10-m-diameter rotors. the windmills are to be
many bridge designs today contain simple geometrical components but are constructed into complex ways to ensure that
A piston-cylinder assembly initially contains 4 mol of substance X in vapor phase at 0.8 bar and 373 K. The vapor is compressed isothermally and reversibly until the first droplet of liquid forms.
a venturi meter has an inlet of 250 mm and a throat of 150 mm diameter. its coefficient of discharge is .985. calculate
a parachutist of mass 70 kg jumps from a plane at an altitude of 32 km above the surface of the earth. unfortunately
the maximum power output capability of an engine decreases with altitude because the air density and hence the mass
Ethylene and air stoichiometric are mixed. They are spark-ignited in a tube. turbulence of the mixing process has have an intensity of 12 cm/s. The integral length scale is 7 mm. Calculate:turbulent flame speed.
consider a three stage compression process with intercooling and determine the intermediate pressures that minimize the
Which tool is better for fine boring : polycrystalline diamond or carbide tool ?
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