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Question
Read the following scenario and answer the questions below.Southern Alberta, the lower half of Saskatchewan, and the southern part of Manitoba are the best locations for wind power (see Figure 17.27). People in these areas wonder if there is enough wind to make such an investment worthwhile. An average wind speed of 14 to 20 km per hour is sufficient for most sizes of wind turbines. The power available in the wind is proportional to the cube of its speed, which means that doubling the wind speed increases the available power by a factor of eight.
If the wind speed averages 19 km/h on one hill and 17 km/h on another hill, then a turbine operating on the first hill could, in theory, generate about ________% more electricity than a turbine on the second hill.
A) 1
B) 10
C) 25
D) 33
E) 50
Answer
This answer is hidden. It contains 1 characters.
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