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Problem
Steel railroad rails 10 meters long are laid with a clearance of 3 mm at a temperature of 15 degrees centigrade. The modulus of elasticity is 200 GPa and the coefficient of linear expansion is 11.7 x 10-6/°C.
1. At what temperature the rails will just touch?
2. Determine the stress in the rails at 65°C.
For the case of an argon plasma, the ion-neutral collision frequency is 1.3E+7 sec' and the ionization collision frequency is 1.6E+9 'EXP(-15.9/T4eV)) sec' at 133 Pa. Using the Ingold model, calculate electron temperature for the case of a plasma ..
Solve for the string displacement y(x,t) and determine the resonance frequencies. Find the formula for the mechanical impedance at the drive point x = L.
Calculate the maximum stiffness k of each of the parallel springs which will allow the pendulum to be in stable equilibrium at the bottom position () = 0.
How much of this pressure difference is due to losses and how much is due to kinetic energy changes?
Gold Brick you win the lottery and decide to impress your friends by exhibiting a million-dollar cube of gold. At the time, gold is selling for $426.60 per troy ounce, and 1.0000 troy ounces equals 31.1035 g. How tall would your million-dollar cub..
estimate the specific molar volumes in cm3mol using the peng-robinson equation of state for nitric oxide at 150 k
a small 0.6-lb collar d can slide on portion ab of a rod which is bent as shown. knowing that r 8 in and that the rod
Design an aluminum cantilever beam section on which the force is applied to withstand impact movement up and down 3.0 inches off the ground and back for a life of 8(104) cycles.
To restore joint B to its initial position in the horizontal direction, how much must bar AB be shortened? (c) If the temperature of bars AB and BC increases.
an aircraft engine is fitted with a single-sided centrifugal compressor. the aircraft flies with a speed of 230 ms at
a 3.20-kg object has a velocity 5.60 ihatbold - 1.80 jhatbold ms. note from the definition of the dot product v2
a spring with a wire diameter of 1mm and 20 turns of radius 10 mm was given to you. the weight of the spring is 4 g.a
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