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Explain in your own words what made the passengers feel better.

1. Suddenly, the clatter of petrol engines obliterated the early hush. The engines were necessary to power the huge fans used to force large amounts of air into the balloon's envelopes. This was just the first stage in the balloon-inflation process, and while the fans were running, the ground crew and pilots meticulously checked all the lines and rigging—a reassuring sight for us prospective passengers!

Answer:
(2 marks)

Sagot :

GinnyAnsweridn

Final answer:

Buoyancy is the force that allows a hydrogen-filled balloon to float upwards.


Explanation:

Buoyancy is what makes a balloon filled with hydrogen float upwards. The difference in density between the air inside the balloon and the surrounding air creates an upward buoyant force, allowing the balloon to rise.


Learn more about Buoyancy and hydrogen-filled balloons here:

https://brainly.com/question/30912697


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