New formulas

Density (P)

m/v

acceleration(a)

v-u/t

weight (W)

mg

speed (V)

s/t

restorative force (F)

kx

moment (m)

Fd (from pivot)

pressure (p)

F/A

work (w)

Fd

kinetic energy (Ek)

m V²/2

gravitational potential energy (Epg)

mgh

Efficiency

useful work /total work

Speed (waves)

fλ

reflective index (n)

sinOi/sinOr

frequency of wave

waves/t

Power (P)

w/t

Charge (Q)

It

Voltage (V)

IR

Power (current)

IV

power in to the primary coil = power out of the secondary coil

I ᵖ x V ᵖ = I ˢ x V ˢ

Voltage = number of coils

V ᵖ / V ˢ = N ᵖ / N ˢ

light speed

3×10^8 m/s

light frequency

speed of light / wavelength