Two ants race acroos a table
Two ants race acroos a table 74 cm long. One travles at4.64 cm/s, and the other at 3.99999 cm/s. when the first one crosses the finish line, how far behind is the second one? Answer in units of cm.
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Give a counter example to show that the following statement is false: When the magnetic field through a loop changes, currents run in the loop in such a way as to make a new magnetic field in the opposite direction to the original one.
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