PHY 231 Midterm: PHY231 Midterm 3
Document Summary
Do not open exam until instructed to do so. Quadratic formula ax2 + bx + c = 0, x = [ b b2 4ac]/(2a) A2 + b2 2ab cos = c 2. Polar coordinates x = r cos , y = r sin , r = px2 + y2, Watts tan = y/x abbreviation kg m s. C, k or f t f = 32 + (9/5)t c. 1 cal=4. 1868 j, 1 hp=745. 7 w, 1 liter=10 3m3 g = 9. 81 m/s2, g=6. 67 10 11 nm2/kg2. 1 atm=1. 013 105pa, 0 c=273. 15 k, na = 6. 023 1023. R = 8. 31 j/(mol k)=0. 0821 l atm/(mol k), kb = r/na = 1. 38 10 23 j/k, = 5. 67 10 8 w/(m2k4) vsound = 331pt /273 m/s. Lf,v ={79. 7, 540} cal/g, = 1000 kg/m3. X = (1/2)(v0 + vf )t vf = v0 + at. X = vf t (1/2)at2 f (1/2)v2 (1/2)v2. F = ma, gravity: f = mg, p e = mgh.
