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Two small metal cubes with masses 2.0 g and4.0 g are tied together by a 4.9-cm-long...

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Physics

Two small metal cubes with masses 2.0 g and4.0 g are tiedtogether by a 4.9-cm-long massless string and are at rest on africtionless surface. Each is charged to +2.2 μC .

The string is cut. What is the speed of each sphere when theyare far apart?
Hint: There are two conserved quantities.Make use of both.

The mechanical energy of the system is 0.89 J and the tension inthe string is 18.1 N

Answer & Explanation Solved by verified expert
4.4 Ratings (822 Votes)
To solve this problem you have to know about Kinetic energy andcoulombs lawStep 1DefinitionKinetic Energy The kinetic energyof a body is the energy that has due to its motion It is definedas the work needed to accelerate a body of a given    See Answer
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