Answer:
Error of parallax it usually occurs when the cylinder is above or below the eye level,and thus resulting in differences In reading the millimeters
The intermediate energy level that the electron reached from the ground state is; n= 3.
<h3>What are energy levels in an atom?</h3>
The fixed distances from an atom's nucleus where electrons may be found are referred to as energy levels (also known as electron shells). Higher energy electrons have greater energy as you move out from the nucleus.
A region of space within an energy level known as an orbital is where an electron is most likely to be found.
The formula to get the higher level is Rydberg's formula;
1/λ = R(1/n₁² - 1/n₂²)
where;
R is rydberg constant = 1.097 × 10⁷ m⁻¹
We want to find the intermediate level where wavelength = 1281 nm = 1281 × 10⁻⁹ m
Thus;

n₂ = √(1/0.1112)
n₂ ≈ 3
To know more about energy levels, visit: brainly.com/question/10763798
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Answer:
The answer is <u>1</u>C4H12 + <u>7</u>O2 -> <u>4</u>CO2 + <u>6</u>H20.
The answer is e.trends in melting points. The conductivity, shininess, malleability and ductility are associated to the electron-sea model. The characteristics of metallic bonds basically describe many of the physical properties of metals by using the formation of the so called sea of electrons that are free to move around.
Answer:
this probably won't be much help the answer is
Explanation:
comes from the ice will eventually have the same temperature ... temperature of the ice cube. ... Heat is always the transfer of energy from an object at a higher. hope this helps