Answer:
C) The student and desk have to be in contact to apply the force.
Explanation:
I am pretty sure :)
Carbon is the reference taken to assign the atomic mass unit
- One twelfth of the mass of unbound carbon-12 is taken as 1amu
- The unit for the atomic mass constant is Dalton (Da)
- This unit is standard when doing calculations in chemistry and physics
- 1amu = 1.6605x10⁻¹⁹g
- This was also derived from the law of definite proportions
- This standard has been set by the International Union of Pure and Applied Chemistry (IUPAC)
- The IUPAC is responsible for assigning various standards such as the nomenclature of various compounds, and updating the periodic table of elements.
- According to the IUPAC carbon is the reference taken to assign the atomic mass unit
Learn more about atomic mass units here:
brainly.com/question/338808
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<span>they are the last organisms to appear.
hope that helps
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Answer: anemia because Marie curie died of anemia