Answer:
Answer is D.window units / small residential units
Refer below.
Explanation:
Rotary compressors are used primarily in window units / small residential units
Answers:
a) 222.22 m/s
b) 800.00 km/h
Explanation:
The speed of a wave is given by the following equation:
Where:
is the speed
is the frequency, which has an inverse relation with the period 
is the wavelength
Solving with the given units:
This is the speed of the wave in km/h
Transforming this speed to m/s:

This is the speed of the wave in m/s
Answer:
if the frequency of the wave if tripled then period of wave gets tripled
Answer:
Because sound doesn't move in vacuum (of space)
shorelines of the southeast U.S.