Chang's Musings
Sunday, May 21, 2017
Fwd: You just dug a tunnel through Earth...
What will happen when a rock is dropped through the tunnel?
Quiz of the Week
Congratulations! You just dug a tunnel to the opposite end of the Earth. To celebrate, you drop a rock straight down into the hole. If the tunnel passes directly through the center of the Earth, then what will happen to the rock after you drop it?
Solve
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