Math - Units and Logs Flashcards
tera (T)
10^12
giga (G)
10^9
mega (M)
10^6
kilo (K)
10^3
hecto (h)
10^2
deka (da)
10^1
deci (d)
10^-1
centi (c)
10^-2
milli (m)
10^-3
micro (u)
10^-6
nano (n)
10^-9
pico (p)
10^-12
1 mile in feet
1 mile = 5280 feet
1 Calorie (Cal-uppercase) in cal-lowercase
1 Cal/Calorie = 1000 cal
1 calorie (cal) in Joules
1 cal/calorie = 4.184 J
1 electron-volt (eV) in joules
1 electron-volt (eV) = 1.602 * 10^-19 J
1L in ounces
1L = 33.8 ounces (oz)
1 pound (lb) in N
1 pound (lb) = 4.45 N
1 atomic mass unit (amu) in kg
1 atomic mass unit (amu) = 1.6 * 10^-27 kg
Sound level formula
20 dB = 10 log (I / Io)
2 = log (I / Io)
10^2 = I / Io
Reference Sound Intensity (Io) = 10-12 W/m²
exponential decay
arrhenius eq for activation energy
gibbs free energy delta G in e
k=e^(-deltaGstandard/RT)
ph in [concentration]