P299 Physics Constants and Equations chapt 20-23 2010

# P299 Physics - Physics 299 Important Constants and Equations Note Some basic simple equations you are supposed to know Here we are providing you

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Physics 299 Important Constants and Equations Note: Some basic simple equations you are supposed to know. Here we are providing you with only some important equations that were introduced in the chapters given below. Constants: g = 9.80 m/s mass of electron = 9.11 x 10 -31 Kg mass of proton = 1.67 x 10 -27 Kg μ o = 4π x10 -7 T.m / A k = 9 x 10 9 N . m 2 / C 2 ε o = 8.85 x 10 -12 C 2 / N.m 2 ; k = 1/ (4π ε o ) e = |1.60x 10 -19 | C; charge on electron or proton h = 6.63 x 10 -34 J.s; Planck’s constant 1 eV = 1.60x 10 -19 J Physics 298 information Roots: x = (-b ± (b 2 – 4 a c)) / (2 a) 1. A x = A cos α; A y = A sin α 2. α = tan -1 (A y / A x ) 3. A = (A x 2 + A y 2 ) Other important equations: 4. x = (v o + v) t/2 5. v = v o + a t 6. x = v o t + ½ a t 2 7. v 2 = v o 2 + 2 a x 8. K = ½ mv 2 9. w = F d cos ϑ 10. U = mgh 11. p = mv 12. v = r ω 14. F c = mv 2 / r; centripetal force Chapter 20 Electric Charge, Force, and Field F = k |q 1 q 2 | / r 2 ; Coulomb’s Law
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## This note was uploaded on 06/03/2010 for the course PHYS 299 taught by Professor Hoston,amahd,bakanowski during the Summer '08 term at University of Louisville.

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