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OpenStudy (anonymous):
A military observer notes two enemy batteries wich subtend, at his observation post, an angle of 40 degrees. The interval between the flash and the report of a gun is 5 seconds for one battery, and 4 seconds for the other. If the velocity of sound is 1140 ft a second, how far apart are the batteries? anyone help using cosine law
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OpenStudy (anonymous):
@ganeshie8
OpenStudy (anonymous):
@Callisto
OpenStudy (cwrw238):
|dw:1415710272650:dw|
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