Engineering, 10.09.2019 23:30 dezmondpowell
The net potential energy between two adjacent ions, en, may be represented by en = -a/r + b/rn where a, b, and n are constants whose values depend on the particular ionic system. calculate the bonding energy e0 in terms of the parameters a, b, and n using the following procedure: (1) differentiate en with respect to r, and then set the resulting expression equal to zero, since the curve of en versus r is a minimum at e0. (2) solve for r in terms of a, b, and n, which yields r0, the equilibrium interionic spacing. (3) determine the expression for e0 by substitution of r0 into the above equation for en. what is the equation that represents the expression for e0?
Answers: 1
Engineering, 04.07.2019 18:10, DestyHilBan1183
Adouble-strand no. 60 roller chain is used to transmit power between a 13-tooth driving sprocket rotating at 300 rev/min and a 52-tooth driven sprocket. a) what is the allowable horsepower of this drive? b) estimate the center-to-center distance if the chain length is 82 pitches. c) estimate the torque and bending force on the driving shaft by the chain if the actual horsepower transmitted is 30 percent less than the corrected (allowable) power.
Answers: 3
Engineering, 04.07.2019 18:10, xboxdude06
Slip occurs via two partial dislocations because of (a) the shorter path of the partial dislocation lines; (b) the lower energy state through partial dislocations; (c) the charge balance.
Answers: 1
Engineering, 04.07.2019 18:20, samantha636
Avolume of 2.65 m3 of air in a rigid, insulated container fitted with a paddle wheel is initially at 264 k, 5.6 bar. the air receives 432 kj by work from the paddle wheel. assuming the ideal gas model with cv = 0.71 kj/kg • k, determine for the air the amount of entropy produced, in kj/k
Answers: 2
The net potential energy between two adjacent ions, en, may be represented by en = -a/r + b/rn where...