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Question 1 of 10
Pbh
medium
What is the 'equilibrium' of a hot air balloon?
A
A. The airspeed at which drag equals thrust
B
B. The condition where the balloon's total weight equals the buoyant force — the balloon hovers at constant altitude without burner input
C
C. The lateral stability of the basket in crosswinds
D
D. The point at which fuel consumption equals the rate of heat loss
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