A plastic rod is charged up by rubbing a wool cloth, and brought to an initially neutral metallic sphere that is insulated from ground. It is allowed to touch the sphere for a few seconds, and then is separated from the sphere by a small distance
After the rod is separated, the rod A) is repelled by the sphere.
B) is attracted to the sphere.
C) feels no force due to the sphere.
A
Physics & Space Science
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A common property of _________metals is their high melting temperature.
Fill in the blank(s) with the appropriate word(s).
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Define mechanical work
What will be an ideal response?
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What are the requirements for a planet to be habitable?
What will be an ideal response?
Physics & Space Science
As a ball falls, the action force is the Earth's pull on the ball. The reaction force is the
A) air resistance acting against the ball. B) acceleration of the ball. C) ball's pull on Earth. D) none of the above
Physics & Space Science