Which best describes the materials that make up an electrical cord?
1. a metallic conductor lacking free electrons surrounded by a rubber insulator with free electrons
2. a metallic conductor with free electrons surrounded by a rubber insulator lacking free electrons
3. a metallic insulator with free electrons surrounded by a rubber conductor lacking free electrons
4. a metallic insulator lacking free electrons surrounded by a rubber conductor with free electrons
Answers: 2
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Which statement best describes who the period and frequency of electromagnetic was change between gamma rays and microwaves? a) the period and frequency stay the same. b) the period increases and the frequency decreases. c) the period decreases and the frequency increases. d) the period increases and the frequency increases.
Answers: 2
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The energy released by a nuclear fusion reaction is produced when
Answers: 1
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Hat is the most commonly cited cause of occupational injuries in the healthcare sector? a. repositioning of patients b. manual pipetting c. slips and trips d. workplace violence
Answers: 3
Which best describes the materials that make up an electrical cord?
1. a metallic condu...
1. a metallic condu...
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