Sound travels $330$ metres in $1$ second. Express the speed of sound in kilometres per second, g

Question

Sound travels $330$ metres in $1$ second. Express the speed of sound in kilometres per second, giving your answer in standard form.[1] A ship wanted to use ultrasonic sound wave to detect the depth of the sea from the sea level. It sent out a sound wave and received its echo in $9.5 \times 10^6$ microseconds. Find the depth of the sea from the sea level, give your answer in standard form. ($1\text{ microsecond} = 1 \times 10^{-6}\text{ second}$)[2]

Accepted Answer

(a) $3.3\times10^{-1}\text{ km/s}$. (b) $1.5675\times10^3\text{ m}$.

Standard Form and Compound Interest - Converting Metric Prefixes Using Powers of Ten

Standard Form and Compound Interest - Converting Metric Prefixes Using Powers of Ten

Solution:

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