The potential energy of a 25 kg bicycle resting at the top of a 3 m high hill is
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Which compound is held together by the electrostatic force between two ions? a. co2 b. cci4 c. h2s d. mgf2

What structural formula represents 4 electrons shared between two atoms?

Abatter hits a 0.140-kg baseball that was approaching him at 30 m/s and, as a result, the ball leaves the bat at 40 m/s in the reverse of its original direction. the ball remains in contact with the bat for 2.0 ms. what is the magnitude of the average force exerted by the bat on the ball?