Consider a swimmer in a fully extended freestyle position. in one condition, the swimmer is swimming naturally. in the next condition, the swimmer is holding a small buoy between her legs for training her arm stroke. in the last condition, the swimmer is wearing a life jacket. draw the three conditions and approximate her center of buoyancy in each. what are the major fluid forces and in what directions do they act?

when insulating materials rub against each other, they may become electrically charged . electrons , which are negatively charged, may be 'rubbed off' one material and on to the other. the material that gains electrons becomes negatively charged. the material that loses electrons is left with a positive charge.

as we probably am aware that our atmosphere or air have various levels, each level has different gasses, and each gas has another porousness. at the point when the light originates from lower porousness to higher penetrability, it alters its course. with the goal that implies that when the light originates from the moon to the earth, it alters it's course a lot more occasions. it essentially implies that the state of the light piece of the moon is changed on the earth.

not copied too! hope this !

joke:

h o h o hope you have a merry christmas!