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Bicycle wheel A bicycle wheel (a hoop) of mass M and radius a is fitted with a smooth spindle lying along its symmetry axis. The wheel is spun with the spindle horizontal, and the spindle is then made to turn with angular speed Ω about a fixed vertical axis through the centre of the wheel.
Show that n, the axial spin of the wheel, remains constant and find the moment that must be applied to the spindle to produce this motion.
Determine the required length L of each splice if a factor of safety is 2.75.
Effect of pressure on temperature and density of air for an adiabatic process, The pressure is to be raised from atmospheric to 7 psi (4.83 bar). The process is adiabatic, and the volume is constant and unknown.
Conical pendulum A particle is suspended from a fixed point by a light inextensible string of length a. Investigate ‘conical motions' of this pendulum in which the string maintains a constant angle α with the downward vertical.
Solid Mechanics - development of a Human-Powered Vehicle (HPV) that will attempt to break the HPV world speed record. For this assignment you are set a challenge to optimise the design of Glen's bicycle crank, using commercial finite element analy..
a normal shock wave exists in mach 2 stream of air having temperature and pressure of 45degf and 30 psia respectively.
Air enters a gas turbine with a velocity of 165m/s and a specific enthalphy of 2800KJ/kg and leaves with a velocity of 135m/s and specific enthalpy of 2175KJ/kg. The heat lost to the surrounding turbine is 32.5KJ/kg. Determine power developed by the ..
Explain how the centre of pressure moves forward when an aircraft flies from transonic to supersonic speed including how high speed aerofoil sections, area ruling and sweep back is used to reduce the problems
In certain instances, there are problems when the state variables that is not temperature and pressure. Consider a throttling valve. In this case, a mixture of liquid and vapor enters a valve at 3MPa and leaves at 10KPa and 500C. Assume that the valv..
an air-standard otto cycle has a compression ratio of 7.5. the maximum and minimum cycle temperatures are 1600 k and
What is the rest mass of the resultant particle?
steam enters a well insulated nozzle operating at steady state at 1000?f and 500lbfin2 and velocity 10fts. at the
A pitcher has an ERA of 3.12 runs/game and has pitched 150 innings. How many earned runs has the pitcher allowed?
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