The frequency of a 60 vibrations per second wave traveling 30 m in 1 s is
A. more than 60 Hz.
B. 60 Hz.
C. 30 Hz.
D. none of the above
Answer: B
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Enforcement of Superfund and cleanup of polluted sites has slowed because
A. responsible parties have been quick in cleaning up pollution. B. pollution is no longer a major concern for waste producing industries. C. local governments and small businesses willingly take on the responsibility for cleanup. D. the U.S. Congress refused to renew the tax on oil and chemical companies that funded the program. E. most of the waste sites in the U.S. have already been cleaned up.
Which of the following is an instrument that uses infrared or visible light in the form of a laser beam to determine wind direction?
A. aerovane B. radiosonde C. pilot balloon D. lidar
What is the parcel’s lifting condensation level?
Take a parcel of air from the Bay of Bengal in the Indian Ocean up to Cherrapunji at 1500 m (4900 ft). Assume that its temperature is 30°C and has 90% RH at 0 m (0 ft) over the Bay of Bengal. What will be an ideal response?
The North Pole has a higher noon Sun Angle that New York City on this date.
June 21 March 21 September 21 none of these