PHSCS 105 Midterm: BYU PHY 105 exam 4 - Fall 2009
Document Summary
Constants: g = 9. 8 m/s2 but you may use 10 m/s2 in nearly all cases. G = 6. 67 10-11 n m2/kg2 kb = 1. 381 10-23 j/k. Mass of sun = 1. 991 1030 kg. Mass of earth = 5. 98 1024 kg barcode here. Radius of earth = 6. 38 106 m. Radius of earth"s orbit = 1. 496 1011 m. Linear exp. coeff. of copper: 17 10-6 / c. Linear exp. coeff. of steel: 11 10-6 / c. Latent heat of melting (water): 3. 3 105 j/kg. Latent heat of boiling (water): 2. 26 106 j/kg. Thermal conduct. of aluminum: 238 j/s m c v air = 343 m/s at 20 c sin(30 ) = 0. 5 cos(30 ) 0. 866 tan(30 ) 0. 577. 1 atm = 1. 013 105 pa = 14. 7 psi. 3 v f v i v ave v. N (or p w = mg, peg = mgy. F = -kx, pes = kx2 f.
