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A plane lands at 260 kms per hr.
The mass of the plane is 400 tons.
All 16 rear wheels contact ground at the same time.
The lift of plane at the moment of touch down is 95% of plane's wight.
The coefficient of kinematic friction between the runway and its wheels is 0.5
The mass of one wheel is 125 kg and its radius of gyration is 0.75 m. The radius of a wheel is 1 m.
1. How far would the wheels skid before they begin to roll without slipping?2. What's the skidding time?3. What is the deceleration of the aircraft while it's skidding?4. What is the energy dissipated as heat due to friction?
(a) Find the speed of the bucket (b) How fast must the bucket move at the top of the circle so that the rope does not go slack?
Plot the lift and drag forces exerted on an airfoil as a function of velocity. Use velocity values going from 0 to 45 m/s on a log-linear plot (log-scale on the y axis).
Superheated water vapour at 180 psia and 500 degrees Farenheit is allowed to cool at a constant volume until the temperature drops to 250 degrees Farenheit. At the final state, determine
Estimate the time necessary to achieve the same concentration at a 5.3-mm position for an identical steel and at the same carburizing temperature.
A block and tackle system with nine supporting strands is used to lift a metal lathe in a manufacturing plant. The motor being used to wind the cable in the pulley system can provide 100 lb. of force.
Twenty-five samples of steel beam were chosen and tested for Young's Modulus. Eight had a modulus of E = 30 x 10^6 psi. Two had a modulus of E = 29 x 10^6 psi. Fifteen had a modulus of E = 30. x 1-^6 psi.
comment on any safety hazards that might be encountered. especially, what would you anticipate if the inlet gas control valve were to malfunction and the gas space above the fuel were to reach full storage tank pressure (69bar)? the fuel tank has ..
consider a plane wall 100mm thick and of thermal conductivity 100 w/m .k seady state conditions are known to exist with T1 = 400 k T2= 600 K. determine the heat flux and the temperature gradient off the coordinate systems.
Also, compare with the efficiency of an Otto cycle operating with the same maximum pressure.
Determine maximum total bending moment (static plus dynamic) of the beam under steady-state conditions.
Building HVAC Requirements - Indoor Air Quality and Mechanical Ventilation and how determine the size of the equipment if i need for 60cfm.?
What is the mass flow rate of oxygen in lbm/s? Note that the inside diameter of a nominal 2 inch schedule 40 steel pipe is 2.067inches. Assume ideal gas principles apply.
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