Bottles of perfume sometimes have thick glass (n = 1.5) walls which give the impression the volume is larger than it really is. Assume a cylindrical bottle with an inner radius of 1.0 cm and an outer radius of 2.0 cm. What percentage of the apparent volume is the real volume?
a. 95%
b. 60%
c. 80%
d. 64%
e. 75%
d
Physics & Space Science
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Fill in the blank(s) with correct word
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As a wave-generating object moves through a medium, the waves ahead
A) bunch up. B) stretch out. C) neither of these
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Outgassing refers to the formation of an atmosphere by the attraction of gases from the surrounding nebula
Indicate whether the statement is true or false
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It's 6 a.m. and the Moon is at its highest point in your sky (crossing the meridian). What is the Moon's phase?
A) new B) first quarter C) full D) third quarter
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