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Which notation is used to represent an alpha particle? a. b. c. d.
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Two forces produce equal torques on a door about the door hinge. the first force is applied at the midpoint of the door; the second force is applied at the doorknob. both forces are applied perpendicular to the door. which force has a greater magnitude?
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Which is not an example of how an object gains elastic potential energy by stretching? a. jumping on a pogo stick b. pulling on a rubber band c. jumping on a trampoline
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An astronaut has a mass of 70kg.
The force of gravity on the Moon is approximately 1.5N/kg.
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