Question

multi-part
speed of sound
use the table below to answer the two questions.
speed of sound

10 how far does sound travel in air at 20°c in 5 seconds?
a 982 m
b 70.6 m
c 1,715 m
d 66.2 m

Explanation:

Step1: Identify the speed of sound in air at 20°C

From the table, the speed of sound in air at 20°C is \(v = 343\space m/s\).

Step2: Use the formula \(d=v\times t\)

We know \(v = 343\space m/s\) and \(t = 5\space s\). Substitute these values into the formula: \(d=343\times5\).
Calculate \(343\times5=(300 + 40+3)\times5=300\times5+40\times5 + 3\times5=1500+200 + 15=1715\space m\)

Answer:

C. \(1715\space m\)