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A jet is traveling at a constant supersonic speed and altitude from an area with a higher air temperature to an area with a lower air temperature.

An observer in the warmer location hears the sonic boom $t_1$ seconds after the jet passes overhead. An observer in the colder location hears the sonic boom $t_2$ seconds after the jet passes overhead.

What is the relationship between $t_1$ and $t_2$?

A

$t_1 < t_2$

B

$t_1 = t_2$

C

$t_1 > t_2$

D