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Airflow lifts a 3.6 kg bird 50 m up. a) How much work was done by...

Airflow lifts a 3.6 kg bird 50 m up.

a) How much work was done by the flow?

b) How much did its gravitational potential energy increase?

A bird flies at a speed of 2.3 m/s if it has 14 J of kinetic energy. What is its mass?

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1ん (3.6 SOm - 1 764 2) 2***************************************************************************************************
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