// physics

⚛ Physics

Mechanics, motion, electricity, thermo.

Astronomy & Gravitation

Kepler's Laws T² = 4π²a³ / (G M)

Electrical Power P = V I = I²R = V²/R

Ohm's Law V = I R

Archimedes' Principle F_b = ρ V g

Density ρ = m / V

Pressure P = F / A

Boyle's Law P₁V₁ = P₂V₂

Acceleration a = (v − u) / t

Distance d = v t

Speed v = d / t

Kinetic Energy KE = ½ m v²

Potential Energy PE = m g h

Newton's First Law (Inertia) ∑F = 0 ⇒ velocity stays constant

Newton's Laws of Motion F = m a (2nd law)

Newton's Third Law (Action–Reaction) F(A on B) = − F(B on A)

Mechanical Power P = W / t

Work Done W = F d cosθ

Days Between Dates days = end − start

Time Zone Converter same moment, different local clock

Work Hours Calculator hours = (end − start) − break

Projectile motion R = v² · sin(2θ) / g