5)
Sun spots are believed to be most closely related to the sun's
A)
corona
B)
period of rotation
C)
magnetic field
D)
changing size
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Ответ:
c) acquires a positive charge
Explanation: An object will be negatively charged if it receives an electronic charge and positively charged if it loses an electronic charge.
Back to our question, two uncharged object are rubbed on each other and one acquired a negative charge, this simply implies that the first body got the electronic charge from the second.
The second lost electronic charge to the first thus making it a positive charge.