Answer:
The answer is C
Sn=3(1-1/2^n)
Step-by-step explanation:
To start this question, we should know what is the atomic number of cobalt. The atomic number (the number of protons) of Cobalt is Z =27.
Now, we know that a Cobalt 60 isotope means an isotope of Cobalt whose Atomic Mass is 60
Thus, in a Cobalt 60 isotope, the number of neutrons in the nucleus are .
From the question we know that the given nuclear mass is 59.933820 u.
Now, the mass defect of Cobalt 60 can be easily calculated by adding the masses of the protons and the neutrons as per our calculations and subtracting the given nuclear mass from it.
Thus,
Mass Defect = (Number of Protons Mass of Proton given in the question) + (Number of Neutrons Mass of Neutron given in the question)-59.933820 u
Mass Defect =
Thus, the required Mass Defect is
In eV, the Mass Defect is
Answer: 7n - 13
Step-by-step explanation:
Apply the distributive property.
4n + 3n + 3 ⋅ -5 + 2
Multiply 3 by -5
4n + 3n - 15 + 2
Add 4n and 3n
7n - 15 + 2
Add - 15 and 2
7n - 13
hope this helps :)
Answer:
x = ¹/₂
y = 1
Step-by-step explanation:
Given system of equations:
<u>Multiply</u> the second equation by 3:
<u>Add</u> this to the first equation to <u>eliminate</u> the term in y:
<u>Solve for x</u>:
<u>Substitute</u> the found value of x into the first equation and <u>solve for y</u>:
Therefore, the <u>solution</u> to the given system of equations is:
x = ¹/₂ and y = 1
Learn more about systems of equations here:
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