Answer:
A it is less dense than water
Explanation:
The density, of a substance is its mass per unit volume
Answer:
c) The pitch of the two sirens sounds the same to you
Explanation:
The pitch does not depend on the distance of the object from the observer.
As per the given data
pitch = frequency
Frequency =

=

Hence, the pitch of the two sirens remains the same for the observer.
Answer:
The answer is below!!
Explanation:
The ratio of the wavelength of the waves that travel on the string to the wavelength of the generated sound wave is 0.585
Hope I Helped!!
:)
The same force accelerates a small mass faster than
it accelerates a large mass.
It's easier to get a little red wagon going by pushing it
than it is to get a school bus going by pushing it.