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1. Two bowling balls, each with a positive charge of 2.5 x 10

/in /by

1. Two bowling balls, each with a positive charge of 2.5 x 10 ^-5
are located 23.0 cm apart. The size of the electric force between them is ___N.

Report your answer to 2 decimal places

2. A rock of mass 4.00kg is dropped from a stationary hot air balloon. Its potential energy at the top is 18,000 J. When its potential energy is 10,000 J, the rock is falling at ____ m/s

Report your answer to 2 decimal places

 
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