Answer:
Length of pipe 
meter
Explanation:
Speed of a transverse wave on a string
where F is the tension in string and 
is the mass per unit length
Thus,
Substituting the given values we get -
Speed of a transverse wave on a string
For third harmonic wave , frequency is equal to
Substituting the given values, we get -
Length of pipe
Substituting the given values we get
for first harmonic wave
Length of pipe meter
Explanation :
In Interspecific competition, different individuals of different species fight for the same resource in an ecosystem. The resources can be food or living space.
Birds belong to the group of<em> aves</em>, squirrels and chipmunks are from the family of <em>Sciuridae</em>.
All three are from different species. They are on the same ecosystem i.e. tree. They form the interspecific competitions.
I say the answer is eating chicken. Eating chicken provides many nutrients such as, protein, diabetes, and somminilla.
The natural gas contains chemical energy, hence the chemical energy in the gas is converted to Heat Energy which is used to heat the water.
