What evidence supports or undercuts stiffer actions to protect the air? Explain
What will be an ideal response?
Against stiffer actions: the air is much cleaner than it used to be, so action is not
urgent; it increases consumers' costs; these actions interfere with free enterprise; regulation
hampers competitiveness of businesses; regulations impose more of a compliance burden
on smaller firms than larger firms with more resources; regulations disproportionally harm
the rich, who invest in business that employ the poor; regulations disproportionally harm the
poor, who are less able to switch suppliers.
For stiffer actions: people's health is still adversely affected by emissions; people's
property is still damaged by emissions; costs of remediation are much less than cited by
opponents (see, for example the discrepancy between industry estimates of compliance with
the CAAA and the actual costs); trees and wildlife are still adversely affected by emissions;
crop losses are due to emissions.
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Add the following lengths, each obtained from a different measuring instrument, and round the answer to the proper number of significant figures: 20.02 m, 5.91 m, 0.0097 m, and 2.467 m
What will be an ideal response?
A lunar eclipse may occur
a. when the Moon is first quarter phase. b. when the Moon is 3rd quarter phase. c. when the Moon is full. d. when the Moon is new.
Isaac Newton's contributions to physics include
a. the laws of motion b. the law of universal gravitation c. invention of the calculus d. the invention of the reflecting telescope e. all of the above
A 2.2 k resistor and a 2.0
F capacitor are in series in an ac circuit. The rms voltages across each are equal. What is the frequency?
A. 23 Hz B. 15 Hz C. 72 Hz D. 36 Hz E. There is insufficient information to solve.