Physics, 31.01.2020 22:49, princessss30188
At a distance of 0.75 meters from its center, a van der graff generator interacts as if it were a point charge, with that charge concentrated at its center. a test charge at that distance experiences an electric field of 4.5 × 105 newtons/coulomb. what is the magnitude of charge on this van der graff generator?
a. 1.7 × 10ˆ-7 coulombs
b. 2.8 × 10ˆ-7 coulombs
c. 3.0 × 10ˆ-7 coulombs
d. 8.5 × 10ˆ-7 coulombs
Answers: 2
Physics, 21.06.2019 23:20, ElizabethF
Asmall, positively charged ball is moved close to a large, positively charged ball. which describes how the small ball likely responds when it is released? it will move toward the large ball because like charges repel. it will move toward the large ball because like charges attract. it will move away from the large ball because like charges repel. it will move away from the large ball because like charges attract.
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The atoms in a nickel crystal vibrate as harmonic oscillators with an angular frequency of 2.3 × 1013 rad/s. the mass of a nickel atom is 9.75 × 10-26 kg. what is the difference in energy between adjacent vibrational energy levels of nickel? (h = 6.626 × 10-34 j • s, , 1 ev = 1.60 × 10-19 j)
Answers: 2
At a distance of 0.75 meters from its center, a van der graff generator interacts as if it were a po...
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