The Andean Hummingbird (Patagona gigas) has a mass of 70 g and flaps its wings 10 times per second while hovering. Possible answers: between 0.7 J/beat and 1.75 J/beat.
To move an object, it must be converted into energy. The transfer of energy can be done in a force way. This amount of energy transferred by the force that moves the object is called work done. Expressing this concept mathematically, the work W is equal to the force f multiplied by the distance d, or W = fd. If the force is applied at an angle θ to the displacement, the work done is W = fd cos θ. Scientifically, work is done only when a certain distance is traveled or a force is applied. If the object to which the force is being applied is not moving, no work is being done.
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