2014年12月17日 · 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.

2017年10月14日 · 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...

2005年8月3日 · 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

2009年8月5日 · 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.

2018年8月8日 · 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

2012年2月23日 · I'm a little confused about the conversion between lbm and lbf (mass pounds and force pounds). I'm doing a problem where I'm using Newton's 2nd law to calculate mass flow rate. F= Δ((Mass flow rate)*Velocity) I know my force is 400 lbf and velocity is 40 ft/s so mass flow rate is 10 lbf/(ft/s) Is the the same as 10 lbm/s?

2011年4月25日 · 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

2008年9月14日 · 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

2007年3月6日 · Since the Newton IS a unit of force, they can only mean "pounds" as a unit of force: LBF. Mar 6, 2007 #6

2009年9月8日 · 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.