Important for units
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I think this will come in handy for you.As you never know when you are asked to calculate the unit of a variable. Here is the order PQ:Physical quantities. SI:SI Units. DF:Dimensional formula. 1. PQ:Velocity = Displacement/Time SI:m/s DF:[M0L1T-1] 2. PQ:Acceleration=Velocity/time SI:m/s2 DF:[M0L1T-2] 3. PQ:Force=mass*acceleration SI:Kg-m/s2=Newton DF:[MLT-2] 4. PQ:Work=Force*Displacement SI:Kg-m2/s2=N-m=Joule DF:[ML2T-2] 5. PQ:Energy SI:Joule(J) DF:[ML2T-2] 6. PQ:Torque=Force*perpendicular distance SI:N-m DF:[ML2T-2] 7. PQ:Power=Work*time SI:J/s or watt DF:[ML2T-3] 8. PQ:Mommentum=mass*velocity SI:Kg-m/s DF:[MLT-1] 9. PQ:Impulse=Force*time SI:N-s DF:[MLT-1] 10. PQ:Angle=arc/radius SI:radian DF:[M0L0T0] 11. PQ:Strain=dL/L or dV/V SI:no units DF:[M0L0T0] 12. PQ:stress=Force*area SI:N/m2 DF:[ML-1T-2] 13. PQ:Pressure=Force*area SI:N/m2 SF:[ML-1T-2] 14. PQ:Modulus of elasticity=stress/strain SI:N/m2 DF:[ML-1T-2] 15. PQ:Frequency=1/Time period SI:Hz(Hertz) DF:[M0L0T-1] 16. PQ:Angular velocity=angle/time SI:rad/s DF:[M0L0T-1] 17. PQ:Moment of inertia=(mass)*(distance)2 SI:Kg-m2 DF:[ML2T0] 18. PQ:Surface tension=Force/length SI:N/m DF:[ML0T-2] 19. PQ:Gravitational constant=Force*(Distance)2/(mass)2 SI:N-m2/Kg2 DF:[M-1L3T-2] 20. PQ:Angular momentum SI:Kg-m2/s DF:[ML2T-1] 21. PQ:Coefficient of viscosity SI:N-s/m2 DF:[ML-1T-1] 22. PQ:Planck's Constant SI:J-s DF:[ML2T-1] 23. PQ:Specific heat(s) SI:J/Kg-K DF:[L2T-2 -1]24. PQ:Coefficient of thermal conductivity(K) SI:watt/m-K DF:[MLT-3 -1]25. PQ:Gas constant(R) SI:J/mol-K DF:[ML2T-2 -1mol-1]26. PQ:Boltzmann constant(k) SI:J/K DF:[ML2T-2 -1]27. PQ:Wein's Constant(b) SI:m-K DF:[L ]28. PQ:Stefan's constant( )SI:watt/m2-K4 DF:[MT-3 -4]29. PQ:Electric charge SI:C DF:[AT] 30. PQ:Electric Intensity SI:N/C DF:[MLT-3A-1] 31. PQ:Electric Potential SI:Volt DF:[ML2T-3A-1] 32. PQ:Capacitance SI:farad DF:[M-1L-2T4A2] 33. PQ:Permittivity of free space SI:C2N-1m-2 DF:[M-1L-3T4A2] 34. PQ:Electric dipole moment SI:C-m DF:[LTA] 35. PQ:Resistance SI:Ohm DF:[ML2T-3A-2] 36. PQ:Magnetic Field SI:Tesla(T) or weber/m2(Wb/m2) DF:[MT-2A-1] 37. PQ:Coefficient of self induction SI:Henry DF:[ML2T-2A-2] Hope you find it useful. plZ rate me if you find it useful. Cheers!!!!!!!!!!!!!!
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