Physics Calculators (Page 27)
Velocity, mechanics, energy, electricity and physics tools.
Thermal Conductivity Calculator
Enter conductivity k, area A, temp difference ΔT and thickness L to compute heat-transfer rate, thermal resistance and heat flux. Copper k=400, A=1, ΔT=100, L=0.01 → 4 MW.
Newton's Cooling Rate Calculator
Enter initial and environment temperatures, cooling constant and time to compute the cooling rate dT/dt at any moment.
Stokes' Law Calculator
For low-Reynolds-number flow, a sphere's drag is F=6πηrv; terminal velocity v_t=2r²g(ρ_p−ρ_f)/(9η). Water η=0.001, r=1 mm, glass ρ=2500 → v_t≈2.18 m/s.
Helmholtz Free Energy Calculator
Compute Helmholtz free energy F = U − TS.
Magnetic Moment Calculator
Enter current, area and field (with angle) to compute the magnetic moment m = I·A, torque and potential energy of a current loop.
Reduced Mass Calculator
Enter two masses to compute reduced mass μ=m₁m₂/(m₁+m₂), the mass ratio and total mass. m₁=1, m₂=35 → μ≈0.972; electron-proton μ≈m_e (planet-star approximation).
Archimedes' Principle Calculator
Compute buoyant force F_b = ρ·V·g on a submerged object.
Projectile Motion Calculator
Enter initial velocity, launch angle and gravity to compute range, max height, flight time and velocity components of a projectile.
Damped Oscillation Calculator
Compute damped frequency, half-life and Q of a decaying oscillation.
Beats Frequency Calculator
Compute beat frequency, beat period and average frequency of two tones.
Bohr Model Calculator
Compute orbit radius, energy and velocity of a hydrogen-like atom (Bohr model).
Pascal's Principle Calculator
Enter input force and the input/output areas to compute the output force and pressure via Pascal's principle p = F/A (constant in a fluid).