how to convert 8000psi to KN(force), i mean what is the equevilant of KN to 8000psi?
105246
Psf (pounds per square foot) is a pressure unit, Newton is a force unit, so there is no equivalent.  But 0.224808943 pound = 1 Newton, and 1 foot = 0.3048 meter, so that's enough info to convert 8000 psf to Newtons/meter^2, which is a pressure unit.  I googled the conversion, 8000 psf = 383042.072 Newtons/meter^2.  How do you google conversions?  Just enter "8000 lb/ft^2 to newton/m^2".
955176
Force - Newtons\nMass - Kilograms\nAcceleration - metres per second
1059864
convert them to kilograms
904741
The change in momentum of the automobile is equal to the impulse of the applied force.\n\nInitial momentum = mv = 1200*50 = 60000 km-kg/h\nFinal momentum = 0\n\nWe need to convert the 60000 km-kg/h to useful units\n\n60000 km-kg/h * 1000 m/km / 3600 sec/h = 16667 m-kg/sec\n\nImpulse = force * time = F*0.14 sec\n\nSo F*0.14 = 16667\n\nForce F = 16667/0.14 = -120 KNewtons\n\nNote that the applied force is against the original direction of motion, so the force is negative...
363034
m = kn\nk = m/n\n\nk = 144/8\nk = 18\n\nANS : 18
539746
F = ma\n\nF - Force\nm - mass\na - acceleration
71544
Fnet=M*A \n\nYou know that the only forces are friction and the applied force of the orderly because friction and the normel force cancel out.\n\nso:\nFo-Ff=M*A\n70N - xN=80Kg * .4m/s^2\n70N - xN=32Kg*M/s^2 =32N\n-xN=32N-70N\nx=38N\n\nThe force of friction is 38.0N in the direction opposite of motion.
193176
well F = kx. im assuming you have to find out the spring constant in this. So the force is the force of gravity that is acting on the mass which is 9.8*0.55kg which is 5.39N. and the x is the amoutn it stretches, which is 36cm or 0.36m. so then\n5.39N = k (0.36m)\nk = 5.39N / 0.36m\nk = 14.972222222222222222222222 N/m. \n\nhope that helps. let me know fi u need more help. later
987931
you are making a mistake with the units\n\ndid you mean kg/s^2? if it is so the answer is 10300 kg/s^2\nif did you mean kgf/m it is 1050 kgf/m \nif not your units are wrong. \nremember that 1 N (newton) is 1 kgxm/s^2\nand 1 kgf = 9.8065 kgxm/s
913014
F(net) = m x a\n\nF (net) = F (forward) - F(air friction)\n\nso  F(air friction)  = F (net) - F(forward)\n\nMass is given 20 kg\n \nnet acceleration given 2.0  m/s^2\n\n\nSolve for the Net Force, subtract the forward force, the difference is the force due to air friction.
69843
work = force times distance\nW=Fs
979735
If we just give you the answer, you'll never learn properly.\n\nAs has been suggested you need to get everything in the right units first!!\n\nNewtons 2nd law F= Ma\n\nForce = Mass X Acceleration\nForce is in Newtons\nMass in Kilograms\nAcceleration in Metres per second\n\nYou already have the mass - 38,000kg\n\n\nYou need to figure out the acceleration:\n\n\n60 kilometres/hr = 60,000metres/hr\n60,000metres/hr divided by 60 = 1,000 meters per minute\n1,000 metres per minute divided by 60 will give you the needed finishing velocity of metres per second\n\nAcceleration = finishing velocity / time ( 20 seconds )\n\nForce therefore = 38,000 X your answer for acceleration!
102595
50 N - friction = m*a= 90*0.35 N\nfriction = 50N - 31.5N = 18.5N
799229
a. Calculate the horizontal component of the 485 N.\nFh = 485 N*cos35\nCalculate the force of friction.\nFf = 0.57*319 N\nCalculate the net force.\nFn = Fh-Ff\nCalculate the mass of the box.\nW = m*g\nCalculate the acceleration.\nFn = m*a\nCalculate time to move s = 4.00 meters\ns = (1/2)*a*t^2\n\nb. Repeat with uk = 0.75
792387
sum of clockwise moments=sum of anticlockwise moments\n                             200N*1m = F*4m\n                            200Nm/4m=F\n\nForce then should be 50N
861425
The unit of acceleration is metres per square second\n(or) m/(s)^2\n\nThe formula for force is mass*acceleration\nThe unit is kgm/(s)^2 (or) Newton(N)\n1kgm/(s)^2 = 1 N
545558
Force = mass * acceleration\nForce = 1300 kg * 2.6 m/s2\nForce = 3380 Newtons