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zhenek [66]
4 years ago
12

Answer answer answer it it it

Physics
2 answers:
Ann [662]4 years ago
5 0

Answer:

(B) Parachutes

Explanation:

Air resistance works to slow down trains and airplanes, so it isn't desirable.  Air resistance also causes pendulums to slow and stop.

Parachutes need air resistance to slow a person's fall.  So air resistance is desirable here.

alina1380 [7]4 years ago
4 0

Answer:

B i answered it it it

Explanation:

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