It would be most efficient if each household supplied its own electricity
What will be an ideal response?
No; as discussed in the notes for the teacher, utilities need to supply many
customers, but not all use the energy at exactly the same time; this allows the utilities to use
spread out in the demand to supply less cycling or peak load that they would have to were
each customer to have his or her own generator.
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The largest single dish radio telescope is ____
a. suspended on cables in a valley b. buried deep in a mine underground c. orbiting in space d. suspended from balloons in the upper atmosphere
At what temperature are the numerical readings on the Fahrenheit and Celsius scales the same?
What will be an ideal response?
A charged particle is moving with speed v perpendicular to a uniform magnetic field. A second identical charged particle is moving with speed 2v perpendicular to the same magnetic field
If the frequency of revolution of the first particle is f, the frequency of revolution of the second particle is A) f. B) 4f. C) 2f. D) f/2. E) f/4.
A star's parallax can reveal its distance. Stars with larger parallaxes are ________.
A. closer B. the same distance as other stars C. farther away D. This is a trick question. Parallax cannot be measured for stars!