(T1/T2)-1

(T1/T2)

1-(T1/T2)

1+(T1/T2)

Supersonic

Subsonic

Sonic

Hypersonic

kg/square millimeter

N/square meter

ksi

ksc

Conservation of mass

Conservation of momentum

Net work done

Conservation of energy

A circle

A cycloid

An involute

A parabola