When rubbing two insulators together, the one that gets a positive charge has had
A. protons added.
B. protons removed.
C. electrons added.
D. electrons removed.
E. electrons added and protons removed.
D. electrons removed.
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Current data suggest that ________ have at least one planet.
A) about 1 in 1 million stars B) about 1% of all stars C) about 10% of all stars D) most stars E) 100% of all stars
Credit for research in our knowledge of atomic spectra includes
A) Johann Jacob Balmer. B) Johannes Rydberg. C) Walter Ritz. D) all of the above E) none of the above
A charge of 2.00 ?C flows onto the plates of a capacitor when it is connected to a 12.0-V battery. How much work was done in charging this capacitor?
A) 6.00 ?J B) 24.0 ?J C) 12.0 ?J D) 144 ?J E) 576 J
On a floodplain, stream flow is generally
A) laminar. B) turbulent. C) meandering. D) channeled.