A sound wave is emitted into the water from the bottom of a boat. What will happen to the sound wave as it travels through the w

Question

3 years ago

15

A sound wave is emitted into the water from the bottom of a boat. What will happen to the sound wave as it travels through the w

ater?
A. It will slowly lose energy to the water around and become weaker the farther it goes

B. It will absorb thermal energy from the water and speed up until it reaches a maximum speed

C. It will continue along its original path at the same speed idefinitly.

D. It will not travel more than 10 m due to the density of water

Biology

2 answers:

viva [34] · Answer 1 · 2022-08-16T21:58:43+03:00

viva [34]3 years ago

4 0

It is is A but i could be wrong

scoray [572] · Answer 2 · 2022-08-16T23:34:47+03:00

Answer:

A. It will slowly lose energy to the water around and become weaker the farther it goes

Explanation:

Speed of sound in a medium

c = √(K/ρ)

K is the elastic bulk modulus and ρ is the density

For water

K = 2.2 GPa

ρ = 997 kg/m³

c = √(2.2×10⁹/997)

c = 1485.46 m/s

For material of boat (say steel)

K = 167 GPa

ρ = 8050 kg/m³

c = √(167×10⁹/8050)

c = 4554.71 m/s

Here it can be seen the speed in solid is faster than in water so sound will lose energy when it passes through water.