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21. If a wave hits a smooth surface at an angle of incidence of 40 degrees, the angle of reflection is A. 0 degrees. B. 80 degrees. C. 40 degrees. D. 90 degrees.
If a wave hits a smooth surface at an angle of incidence of 40 degrees, the angle of reflection is: 40 DEGREES.
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Asked 11/19/2015 1:44:38 PM
Updated 11/19/2015 2:00:04 PM
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If a wave hits a smooth surface at an angle of incidence of 40 degrees, the angle of reflection is: 40 DEGREES.
Added 11/19/2015 2:00:04 PM
This answer has been confirmed as correct and helpful.
Confirmed by yumdrea [11/19/2015 7:57:06 PM]
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1. About what percentage of the Indian population lives in the lower and middle Ganges river basin? A. 60% B. 40% C. 50% D. 70%
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Updated 11/16/2015 4:06:18 AM
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About 40% of the Indian population lives in the lower and middle Ganges river basin.
Added 11/16/2015 4:06:18 AM
This answer has been confirmed as correct and helpful.
1. With respect to global connections, association with _______ offers the brightest immediate future for many African countries. A. China B. the European Union. C. the United States. D. India
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Updated 11/16/2015 7:51:14 PM
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With respect to global connections, association with CHINA offers the brightest immediate future for many African countries.
Added 11/16/2015 7:51:14 PM
This answer has been confirmed as correct and helpful.
Confirmed by yumdrea [11/16/2015 8:26:50 PM]
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