Taking into account the scientific notation, the result of the subtraction is -4.20689×10⁻².
<h3>Scientific notation</h3>
Scientific notation is a quick way to represent a number using powers of base ten, where the numbers are written as a product:
a×10ⁿ
where:
- a is a real number greater than or equal to 1 and less than 10, to which a decimal point is added after the first digit if it is a non-integer number.
- n is an integer, which is called an exponent or an order of magnitude. Represents the number of times the comma is shifted. It is always an integer, positive if it is shifted to the left, negative if it is shifted to the right.
<h3>Subtraction in scientific notation</h3>
When the numbers to be added do not have the same base 10 exponent, the base 10 power with the highest exponent must be found. In this case, the highest exponent is -2.
Then all the values are expressed as a function of the base 10 exponent with the highest exponent. In this case: 3.11×10⁻⁵= 0.00311×10⁻²
Taking the quantities to the same exponent, all you have to do is subtract what was previously called the number "a". In this case:
0.00311×10⁻² - 4.21×10⁻²= (0.00311 - 4.21)×10⁻²= -4.20689×10⁻²
Finally, the result of the subtraction is -4.20689×10⁻².
Learn more about operations in scientific notation:
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It is an energy source that the world has an abundance in.
Answer:
1.06×10³ MeV/atom
Explanation:
Atomic number : It is defined as the number of electrons or number of protons present in a neutral atom.
Also, atomic number of Sn = 5
0
Thus, the number of protons = 50
Mass number is the number of the entities present in the nucleus which is the equal to the sum of the number of protons and electrons.
Mass number = Number of protons + Number of neutrons
125 = 50 + Number of neutrons
Number of neutrons = 75
Mass of neutron = 1.008665 amu
Mass of proton = 1.007825 amu
Calculated mass = Number of protons*Mass of proton + Number of neutrons*Mass of neutron
Thus,
Calculated mass = (50*1.007825 + 75*1.008665) amu = 126.041125 amu
Given mass = 124.907785 amu
<u>Mass defect = Δm = |126.041125 - 124.907785| amu = 1.13334 amu
</u>
The conversion of amu to MeV is shown below as:-
1 amu = 931.5 MeV
<u>So, Energy = 1.13334*931.5 MeV/atom = 1.06×10³ MeV/atom</u>
A convergent plate boundary is formed when tectonic plates collide
Answer:
the pressure would increase
Explanation:
