Oct 14, 2017 · Homework Statement Given Thrust-specific fuel consumption cT=0.5279lb/lbf*h... as other units in the question are in SI unit, I have to convert it to (N/s)/N first... Homework Equations 1 lbf = 4.448 N 1 lbm = 0.4536 kg Thrust-specific fuel consumption = weight of fuel burned per unit time...

Dec 17, 2014 · As such, 1 lbf = 0.453 592 37 kg * 9.80665 m/s 2 = 4.44822162 N There is also a unit of mass called the slug, defined as the mass which exerts a force of 32.174 049 lbs under the gravitational acceleration at the Earth's surface.

Feb 14, 2012 · It is a serious mistake to use lbf and lbm in the same calculation. If you have lbf and other units such as ft (or in) and sec, then you such use slugs (or lb-s^2/in) for mass. If you have lbm and other units such as ft and sec, then you should use poundals for force.

Sep 8, 2009 · A closed system consisting of 2 lb of a gas undergoes a process in which pV^n=constant. For: p1=20 lb/in^2 , V1=10 ft^3 and p2=100lb/in^2 V2=2.9 ft^3. Find n. Homework Equations pV^n=constant The Attempt at a Solution Im just having trouble realizing how to find n.

Aug 8, 2018 · First to convert lb/lbf to kg/N I would muliply my starting value 0,596 by 0,4535 (lb to kg) and divide it by 4,448 (lbf to N). What I need is end unit of kg/N*s so I would divide everything with 3600. I need a value of meters at the end of the range equation so now:-I mulitply the result from above by the g-force and receive a end unit of 1/s

Aug 3, 2005 · I know there are 4.48 N in 1 pound force. The only way I can derive this is dividing 9.8 m/s^2 by 2.2 lbm/kg. The result shows that there 4.48 N in 1 lbm, but shouldn't it be that there are 4.48 N in 1 lbf. Can anyone clear this up or show a better derivation? Thanks

Sep 14, 2008 · A closed system consisting of 2 lb of a gas undergoes a process in which pV^n=constant. For: p1=20 lb/in^2 , V1=10 ft^3 and p2=100lb/in^2 V2=2.9 ft^3 (a)What is n? (b)What is the specific volume at states 1 and 2 in ft^3/lb? (c)Sketch the process on pressure-volume coordinates

Mar 6, 2007 · Since the Newton IS a unit of force, they can only mean "pounds" as a unit of force: LBF. Mar 6, 2007 #6

Apr 25, 2011 · Hi friends, I have so much confusion between torque unit Inch -lb and inch -lbf . I think inch-lb = inch-lbf i know that 1 lbf = 32.2 lb.ft / sec^2 I need 2500000 inch-lbf torque required so i consider lb-inch . Thanks, Ram18

Aug 5, 2009 · A steel alloy specimen having a rectangular cross section of dimensions 18.8 mm × 3.2 mm (0.7402 in. × 0.1260 in.) has the stress-strain behavior shown in the Figure. If this specimen is subjected to a tensile force of 108900 N (24480 lbf) then (a) Determine the amount of elastic strain induced. (b) Determine the amount of plastic strain induced.