How likely is oil shale to be a component of the U.S. energy policy? Explain

What will be an ideal response?


There are several problems with exploitation of oil shale (as with oil sands), as
was discovered during the 1970s push to develop this as an energy resource. A lot of water
must be used to extract the oil from the rock, and the region containing the oil shale is the
mountain west, which is generally poorly watered. Further, the shale expands as it loses the
oil, causing a tailing problem from mining and a possible leaching problem later on. Unless
the cost of oil is far greater than that of water in situ, and the local people are ready to accept
the environmental disruption, it is not likely that large scale exploitation will occur.

Physics & Space Science

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How many different spin orientations can an electron have in a given orbital?

A. 2 B. 1 C. Any number D. 4

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Two piano strings are simultaneously played – their mass and length are identical, but the tensions differ. If the first string resonates with a fundamental frequency of 330 Hz, and its tension is 1.2% greater than that of the second string, what is the fundamental frequency of the second string?

A. 328 Hz B. 326 Hz C. 336 Hz D. 334 Hz

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When a simple machine multiplies force, it decreases

A) potential energy. B) distance moved. C) both of these D) none of the above

Physics & Space Science