A component in an automobile 12-V electrical system has a resistance of 90 ?. How much current is in the component when in operation?
a. 100 A
b. 0.13 A
c. 7.5 A
d. 1100 A
b
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Which of the following statements is probably true about the very first stars in the universe?
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A small underwater pool light is 1.26 m below the surface of a swimming pool. What is the radius of the circle of light on the surface, from which light emerges from the water? (nwater = 1.333)
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Momentum is conserved only when there is no friction
Indicate whether the statement is true or false