Answer:
The speed of the water wave is
Explanation:
From the question we are told that
The width of the tube is
The fundamental frequency is
Generally the fundamental frequency is mathematically represented as
=>
substituting values
The stage where atoms are spread out and bouncy is the gas stage.
Answer:
Convection is heat transfer through the movement of liquids and gases.
Answer:
the two lines observed correspond to Hydrogen and Helium
Explanation:
One of the great principles of atomic physics is that the emission and absorption lines of atoms are the same, in addition, each different element has a series of characteristic lines with which we can identify it.
Bohr's atomic model allows to fully explain the spectrum of lines and absorption of Hydrogen, in this case the line
λ = 656 nm
corresponds to a hydrogen trasition of the Balmer series from state n = 3 to state n = 2
The other line identified λ = 587 nm does not correspond to any hydrogen line and neither to heavy element lines, so this line when it was discovered was assigned to a new element, which was called Helium. This line is explained this element was assigned an atomic number (charge) of +2 and a mass of + 4 u, specifically it is a transition from level n = 3 to level n = 2
therefore the two lines observed correspond to Hydrogen and Helium
Answer:
Emission spectrum
Explanation:
The emmison spectrum is unique to every elements
Light consists of electromagnetic radiation of different wavelengths. Therefore, when the elements or their compounds are heated either on a flame or by an electric arc they emit energy in the form of light.
The color band indicate the amount of energy emitted in form of electromagnetic radiation.
When electrons in an atom gain energy, the become excited, on falling and losing their energy, they return to their ground state releasing the measure of energy they absorbed in transitioning.