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The density of a life preserver is what helps you float. The preserver has a much lower density then water so it's own density makes it float, but it is so thin (not dense) that it helps makes up for the fact that we are between 80 and 90% water.

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16y ago

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What is an aid to help someone float?

ANSWER:A life preserver or lifevest will work. Or to aid in swimming, an empty gallon jug with a screw on cap should be sufficient to keep a person buoyant and comes with a handle. That's what we used in the boy scouts.


What is an aid used to help someone float?

ANSWER:A life preserver or lifevest will work. Or to aid in swimming, an empty gallon jug with a screw on cap should be sufficient to keep a person buoyant and comes with a handle. That's what we used in the boy scouts.


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You and a pair of life preservers are floating down a swift river you wish to get to either of the life preservers for safety 1 is 3 meters upstream and 1 3 meters downstream which can you get to fast?

If each life preserver is 3 meters on either side, up and down, then you will reach either life preserver with the equal amount of time. As both you and the two life preservers are travelling downstream at equal speed. If you swim to the life preserver upstream you are effectively slowing yourself down and allowing the life preserver upstream to catch up to you. On the other hand, if you swim to the life preserver downstream you are effectively speeding yourself up to catch up to the life preserver downstream. As the frame of reference is the movement of the river, your distance to either life preserver is the same and hence can be reached with the equal amount of time. Answered by Ask4MyTutor


What do you do when you hit a storm and your vessel is underway?

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