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Friends, I need help. I'm trying to calcualte the amount of force required to overcome the hinge friction on a 36" wide x 84" high x 1-3/4" thick steel door weighing 141 lbs. I have calculated the torque created by air pressure differential and have worked out the door closer...

The frequency of oscillation of a gyrocompass is dependent on latitude, as a gyrocompass nears the north polar axis, what effect does that have on the oscillation frequency ?

How many degrees of freedom must be sensed by an inertial guidance system to establish motion of a rigid body through space ?

Can a transfer between co-planner orbits be effected by an elliptic orbit with perigee and apogee distances equal to the radii of the respective circles ?

Stainless steel becomes prone to finger prints even if you have clean hands. Mostly stainless steel dull(matte) finish is used in Pharmacuetical Industry to reduce glare and this causes additional trouble with the marks. The presence of oil from skin contact is indicative of the presence of...

Stainless steel becomes prone to finger prints even if you have clean hands. Mostly stainless steel dull(matte) finish is used in Pharmacuetical Industry to reduce glare and this causes additional trouble with the marks. The presence of oil from skin contact is indicative of the presence of...

Stainless steel panels become prone to finger prints even if you have clean hands. Mostly stainless steel dull(matte) finish has been used to reduce glare and this causes more trouble with the markings. The presence of oil from skin contact is indicative of the presence of some bacteria, or at...

The equation for Fan Horsepower is BHP = (cfm x static friction x specific gravity)/(6356 x motor efficiency)....How is the 6356 derived ?