Answer :
Answer:
a. 20652 m
b. 1239120 m
c. 0.688 m
Explanation:
First we have to find the speed of sound in air of temperature 20°C.
The speed of sound in a medium is dependent on the temperature of that medium. At any given temperature, the speed of sound is given as:
[tex]v(T) = v(T_{0}) + 0.61T[/tex]
where
v(T) = Speed of sound at any temperature T;
[tex]v(T_{0})[/tex] = Speed of sound at 0°C;
T = temperature of the medium.
The speed of sound in air of 0°C is 332 m/s, hence, in air of temperature 20°C, speed will be:
[tex]v(20) = 332 + (0.61 * 20)\\\\v(20) = 332 + 12.2\\\\v(20) = 344.2 m/s[/tex]
a. Distance traveled in 60 seconds:
distance = speed * time
distance = 344.2 * 60
distance = 20652 m
b. Distance traveled in 1 hour:
1 hour in seconds = 1 * 60 * 60 = 3600 seconds
distance = 344.2 * 3600
distance = 1239120 m
c. Distance traveled in 0.002 second:
distance = 344.2 * 0.002
distance = 0.688 m