Answer:
similar wave amplitudes
Explanation:
When two waves travelling in the same medium have similar wave amplitudes they are less likely to interfere with each other destructively or constructively because the interference between waves occur when the amplitudes of the waves arrive a position in the medium in opposite directions hence they add up( superposition) or cancel each other out.
Hence if the waves have similar wave amplitudes the interference between the waves will be limited.
<span> answer as followed 240km/4h=60km/h </span>
The answer is D
Explanation:
soundwaves can travel through water aka a liquid but secondary waves cant
A. Balloons can be filled with air.
C. Air has mass.