# Lernkarten

Karten 126 Karten 127 Lernende English Universität 29.05.2015 / 18.06.2019 Kein Urheberrechtsschutz (CC0)
1 Exakte Antworten 74 Text Antworten 51 Multiple Choice Antworten

Definition of Pressure

Pressure is the Force perpendicular to a surface per area

Pressure at sea level $$p_s =101325 N/m^2$$

Definition of density

Density is mass contained in a volume divided by that volume

Density at Sea level $$\rho_s=1.225 kg/m^3$$

273.15

speed is a ....

scalar

velocity is a .....

vector

A flow is incompressible if

$$V< ...m/s$$

100 m/s

What is an isentropic flow

An isentropic flow is adiabatic (no heat exchange) and reversible (no friction or other dissipative effects, production of entropy)