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A migrating starling flies steadily at 11 m/s for 1.0 h, using energy from its fat...

A migrating starling flies steadily at 11 m/s for 1.0 h, using energy from its fat stores. How many grams of fat does it burn?

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Answer #1

The power is not provided so I am assuming 12 watt of power is consumed to fly at 11 m/s.

So a migrating bird flies study at 11 m/s for 1 hour.

Metabolizing one gram of fat relises approximately 37 KJ energy.

Now power used to fly at 11 m/s = 12W= 12J/s

And bird fly for one hour at the constant speed of 11 m/s

Therefore total energy released=power*time

=12J/s * 1 hour

=12 J/s * 3600sec

=43200J

43.2KJ

37KJ energy metabolize 1g of fat

So, 43.2KJ will metabolism

=

= 1.167g

Therefore 1.167 gram of fat will burn.

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