All Puzzles
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You are on holidays and wake up in the morning, stand up, and look South. You look to the left and find you are still looking South. You look to the right and find you are still looking South!
Suddenly you see a bear. What color is it?
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- 226 views
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- 248 views
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A boat of mass M1 is floating in a lake of water. The volume of the lake is V. The water surface is initially at height h, as measured relative to the lake’s floor. There is an anchor of mass M2 sitting on the boat’s deck. A person standing on deck picks up the anchor and throws it overboard. The anchor then sinks to the bottom of the lake, and the water surface height becomes h’.
Which of the following qualitative relationships is correct? What assumptions are you making about the values of M1, M2, h, and V?
h’ h
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How do trains turn? Their wheels are on a solid axle, so when one wheel turns a turn, so to will the other. We know that the inner rail of a curve is shorter in the curve than the outer rail. Some people think that perhaps one wheel slips, but with the weight a train puts on a wheel, there is no appreciable slippage. So how do trains turn?
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On the charts I remain number one,
This position cannot be undone,
If I burn, you may get
Just a little bit wet.
In a zeppelin, I am no fun.View SolutionSubmit Solution- 512 views
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Apart from the United States of America, which other country in the world is officially named “United States”?
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