Uniform Electric Fields: Consider a uniform horizontal electric field of 50 N/C directed toward the east. If the electric potential at a given point in the field is 80 V, what is the potential at a point 1.0 m directly east of the point?
A. 15 V
B. 30 V
C. 90 V
D. 130 V
Answer: B
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A. 330,000 J. B. 250,000 J. C. 125,000 J. D. 95,000 J. E. 75,000 J.
In 1991, a utility owned a nuclear plant that was online 95% of the year, the oil burning plant was only out for unscheduled maintenance on the air pollution system 15% of the time, and the gas-fired turbines were online 15% of the time
The nuclear plant is rated at 1000 MW, the oil plant at 940 MW, and the turbine at 200 MW. (See Fig. 8.15.) a. What is the total cost of running these three plants for the utility? b. How much would the utility have to charge per kWh to make a profit?
The relatively small number of impact craters and the near absence of small craters on the surface of Venus are thought to be a result of:
A) the soft and resilient nature of the Venusian surface. B) the thick Venusian atmosphere. C) the position of Venus in the solar system—not many meteoroids cross Venus' orbit. D) Venus' lack of a satellite. E) the ancient oceans that once existed on Venus.
On a computer, a megabyte of memory is ______________ bytes
Fill in the blank(s) with correct word