Physics, 22.01.2021 19:50 noeliaalvarado
Which statement best explains why art that illustrates bonding in water uses dashed lines for hydrogen bonds and solid lines for the bonds inside each molecule?
A. Hydrogen bonds are repulsive forces, and the bonds inside each molecule are attractive forces.
B. Hydrogen bonds are permanent forces of attraction and are much harder to break than the temporary bonds inside each molecule.
C. Hydrogen bonds are attractive forces, and the bonds inside each molecule are repulsive.
D. Hydrogen bonds are temporary forces of attraction and are much easier to break than the bonds inside each molecule.
Answers: 2
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Suppose a diode consists of a cylindrical cathode with a radius of 6.200×10^−2 cm , mounted coaxially within a cylindrical anode with a radius of 0.5580 cm . the potential difference between the anode and cathode is 260 v . an electron leaves the surface of the cathode with zero initial speed (v initial=0). find its speed vfinal when it strikes the anode.
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A100-watt light bulb illuminates a solar cell. the electricity from the solar cell operates a water pump that delivers 1 watt of power. what is the efficiency of the system?
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Answers: 2
Which statement best explains why art that illustrates bonding in water uses dashed lines for hydrog...
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