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A racing car moves on a circular track of radius b. The car starts from rest and its speed increases at a constant rate α. Find the angle between its velocity and acceleration vectors at time t.
A pin-connected structure consists of a rigid beam ABCD and two supporting bars. Bar (1) is an aluminium alloy [E = 70 GPa] with a cross-sectional area of A1 = 2,400 mm2. Bar (2) is a bronze alloy [E = 100 GPa] with a cross-sectional area of A2 = 6,0..
Calculate the stress state in the wall of a thin-walled spherical pressure vessel in terms of the internal pressure, p, the sphere radius, r, and the wall thickness, t.
Air undergoes an isentropic process from P_1 = 100 kPA and T_1 = 300 K to a final state where the temperature is 700 K. Assuming an ideal gas, find P_2 in kPa using both the ideal gas tables and assuming a constant specific heat ratio at the average ..
A cylinder filled with oil is under pressure from a piston. The diameter d of the piston is 90 mm and the compressive force F is 42 kN. The maximum allowable shear stress in the wall of the cylinder is 80 MPa. What is the minimum permissible thick..
A power cycle operates between a reservoir at temperature TH and a lower-temperature reservoir at 280 K. At steady state, the cycle develops 40 kW of power while rejecting 1000 kJ/min of energy by heat transfer to the cold reservoir. Determine the mi..
Show the principle stresses on the neutral axis on a correctly oriented element relative to the axis of the beam.
an elevator is created by using a hose hanging from the top of a 10 m building. the hose is diverted into 4 jets at the
A 0.3-L glass of water at 20°C is to be cooled with ice to 5°C. The melting temperature and the heat of fusion of ice at atmospheric pressure are 0°C and 333.7 kJ/kg, respectively, and the density of water is 1 kg/L.
a heat engine with a thermal efficiency of 40 receives heat from a reservoir at a temperature of 300of and rejects heat
Calculate the moment strength for a W36×302 wide-flange section. Assume A992 steel. Consider only strong-axis bending.
steam at 3mpa and 700 degrees c is available at one location in an industrial plant. at another location steam at 2mpa
an inventor claims to have devised a refrigeration cycle that at steady state requires a net power of .8 hp to remove
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