Chemistry, 23.03.2021 15:30 Alizerodriguez2010
What is required for a sound wave to be reflected?
A. A sound wave with frequency equal to the natural frequency of the object
B. An obstacle for the wave to bend around
C. A hard surface for the wave to bounce off
D. A change in frequency as the wave enters another medium
Answers: 1
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Afusion reaction takes place between carbon and another element. neutrons are released, and a different element is formed. the different element is a) lighter than helium.b)heavier than helium.c)the same weight as helium.d)dependent on the element that reacted with carbon.
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What is required for a sound wave to be reflected?
A. A sound wave with frequency equal to the natu...
Physics, 29.01.2020 00:49