Answer:
Probaility
Explanation:
The reliability of a component, system or unit can be defined as the probability that that component can operate for a certain period of time (mission time) without losing its function.
working in a awkward position repeatedly performing exerting force cold temperatures
it's a one way street
C.
I think it’s because it’s the best format
the reason paper airplanes fly is because of lift the foil has no lift
So 1/Rt=1/4+1/4+1/2=4/4 = 1 so Rtotal=1