A positively charged metal sphere A is brought into contact with an uncharged metal sphere B. As a result:
A) both spheres are positively charged
B) A is positively charged and B is neutral
C) A is positively charged and B is negatively charged
D) A is neutral and B is positively charged
E) A is neutral and B is negatively charged
A) both spheres are positively charged
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What type of eclipse can be observed when part of Earth is in the shadow of the Moon?
A wire (length = 2.0 m, diameter = 1.0 mm) has a resistance of 0.45W. What is the resistivity of the material used to make the wire?
a. 5.6 × 10^-7 W × m b. 1.2 × 10^-7 W × m c. 1.8 × 10^-7 W × m d. 2.3 × 10^-7 W × m e. 7.1 × 10^-7 W × m
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Indicate whether the statement is true or false