reloads the page with new variable values in all questions. You must do this after grading the test to rework it another time.
Make sure to enter your answers in the specified units .
Two charges are attracting each other. They are separated by 1.0 meter. The force of attraction is
Two charges are attracting each other with a force of
A charge of
A metallic spehere has a charge of +
A piece of metal has a charge of -
Once you have submitted your answers for grading by clicking the grade button, you
cannot resubmit answers
for the same Problem Set--you must use the 'New Problems' button first.
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