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Figure P12.9 illustrates a Turbo Booster toy that launches a 60-gram "insect" glider (projectile) by compressing a helical spring and then releasing the spring when the trigger is pulled. When pointed upward, the glider should ascend approximately 8 m before falling. The launcher spring is made of carbon steel wire, with a diameter d = 1.1 mm. The coil diameter is D = 10 mm. Calculate the number of turns N in the spring such that it would provide the necessary energy to the glider. The total spring working deflection is x = 150 mm with a clash allowance of 10%.
1. a househusband is steaming beef for his family in a pan with a surface area of 23.544 cm2 that is covered with i a
Why there is heat is not completely converted into work in ideal case?
Your Company is interested in the Pb-Sn alloy system as a possible solder material. Determine the cooling curve for the 90 Sn-10 Pb alloy.
Transform the stresses in Flamant's solution into polar coordinates, or in other words, derive expressions for the stress components σrr, σθθ and σrθ. Note that the result is rather specia.
Derive an expression for the force as a function of bar length y if the length and cross section before deformation are yo and αo2 respectively.
the only information you have about a proposed site for a wind farm is that the wind blows at speeds above 25 ms 90 hrs
Air enters a non-ideal gas turbine at T1 = 2290°F, P1 = 196 psia and exits at T2 = 1200°F, P2 = 14 psia. (a) Assuming constant specific heats evaluated at 1000F, find the turbine efficiency using the Air Tables.
a tank of capacity 5000 gal is filled with 500 gallons of pure water. solution containing 2 lbgal of salt is pumped in
a steel ball of diameter 3.0 mm starts sinking with zero initial velocity in olive oil was viscosity is 0.90p. how soon
the tank shown has a 180 mm inside diameter and a 12 mm wall thickness. knowing that the tank contains compressed air
Determine the percentage of each component of product and write down the stoichiometric and actual combustion equations of the fuel/air mixture.
Determine the rotation angle of the second degree of freedom, theta2, that must be used to bring the effector to the specified configuration.
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