Question 03/98

WEIGHING A FLY

An open bottle lies on a precise weighing scale. A fly then enters the bottle and flutters around in futile attempt to escape. How will the weight reading of the scale change?

A lazier fly, instead of using its wings to fly, uses a small helium filled balloon in order to remain airborne. What happens if it happens to wander into the same bottle?







This question was created by D. J. Bergman


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