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The helicopter can produce a maximum downward air speed ( v = 24 m/s ) in a slipstream of a diameter ( D = 9 m). Knowing that the weight of the helicopter and the crew is ( 15 kN ) and assuming air density rho = 1.21 kg/m^3 ), determine the maximum load that helicopter can lift while hovering in midair. ( 29.3 kN )
A 184.6-mg sample of K2Cr2O7 is dissolved in enough water to make 500.0 mL of solution. c. A 0.1025-g sample of copper metal is dissolved in 35 mL of concentrated HNO3 to form Cu2 ions and then water is added to make a total volume of 200.0 mL. (C..
An elementary second order adiabatic reaction A+ B CD ? + is taking place in a CSTR. The feed to the reactor is equimolar A and B at concentrations of 2.4 mol/liter. The entering temperature is 300 K.
Determine the minimum electric potential difference (in volts) that must be applied to accelerate an a-particle so that on interaction with a hydrogen atom, a ground state electron will be excited to n = 6
Where 'k1' and 'k2' are rate constants,tR,maxis the time at which the maximum concentration of 'R' is obtain and CR,maxis themaximum concentration of 'R'
How will the mole fractions of benzene and toluene in the liquid change with time (increase, decrease, or remain constant)? Explain your answer.
question 1the effect of a hazardous substance depends on the concentration of the substance that is present in the
Assume that an ordinary mercury-in-glass thermometer follows first order dynamics with atime constant of 10s. It is at a steady state temperature of 0°C. At time t = 0, the ther mometeris suddenly immersed in a constant temperature bath at 100°C.
read the titled book nontechnical guide to petroleum geology exploration drilling and production 2nd editionwritten by
A precipitate forms only when Na2SO4 is added. Which cations could be present in the unknown soluble ionic compound? Explain your answer, and write down any calculations you may have undertook in the process of answering it.
Using the steam tables estimate cp in (kj/kg k) , for super heated steam and 0.1 Mpas and 700deg c
Determine the concentration of the exhaust gas and Determine the flow rate of exhaust gas through the smokestack.
Develop a series of design graphs that can be used to demonstrate acceptable combinations of tubes dimensions
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