On a cold morning (3 degrees Celsius), you yell at a mountain 1,500 m away. Your friend is standing on the mountain. How

[answerhappygod]

On a cold morning (3 degrees Celsius), you yell at a mountain
1,500 m away. Your friend is standing on the mountain. How long
does it take before your friend hears your call? (You will need to
calculate the speed of sound in 3 degree air before you can solve
this problem. Use v(sound) = 331m/s + (0.6 m/s * air
temperature).)
Question 9 options:
9 s
4.5 s
0.22 s
499,200 s