Acrylic Ball: http://bit.ly/BBBacrylic Ping-Pong Ball: http://bit.ly/BBBpingpong Balanced: http://bit.ly/BBBbalanced This problem has made the rounds on the internet but I felt it deserved...
========== Here is the set up. I have a balance and two
identical beakers, which I fill with exactlythe same amount of water, except in one of
the beakers there is a submerged ping pongball tethered to the base of the beaker. And
in the other there is an identically sizedball but made of acrylic. So it is denser
than water and it is supported by a thread.Now I want you to make a prediction. If I
were to release this balance and allow itto rotate freely, which way do you think it
would tip, toward the acrylic ball, towardthe ping pong ball or would it remain perfectly
balanced? You can make your selection by clickingon one of the on screen annotations or clicking
a link in the description.>> If they are both displacing the same amount,
like, I think it won’t rotate. ...