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Speed
S = d/t
Gravity
G = w/m
Density
P=m/v
Pressure
P=f/a
Momentum
P=mv
Efficiency
Efficiency = Useful energy output/total energy output x 100%
Work done
Work done =pt
Kinetic energy
Kinetic energy = 1/2mv squared
Force
F = ma
Power
P = E/t
Work done 2
W = fd
Force 2
F = pa
Current
I = Q/t
Voltage
V = w/Q
Resistance
R = V/I
Power 2
P=IV
Energy
E=IVT
Kilowatt per hour
KW= p/1000
Energy Transferred
E=mL
Incidence Ray
I=R
Frequency
f = n/t
orbital speed
V = 2pi r/t