Physics & English
11CH2O is the empirical formula for 40% C, 6.7% H, 53.3% O.
12Projectile motion: horizontal and vertical motions are independent.
13Coulomb is the SI unit of electric charge.
14Capacitance C = Q/V (charge over voltage).
151st law of thermodynamics: ΔU = Q − W.
16Formal English prefers "considerably" over casual "pretty".
17It's = contraction of "it is"; Its = possessive.
18ADH (antidiuretic hormone) controls osmoregulation via the kidneys.
19Rusting = oxidation of iron requiring both O2 and water.
20Beyond C (centre of curvature) gives a real, inverted, diminished image in a concave mirror.