Answer:
The age of the rock = 2800.6 million years = 2.8 billion years.
A simple method of analysis similar to Carbon dating is used to obtain the required age of the rock. Radioactive substances decay according to first order reaction kinetics. So, plugging all the required parameters into the general equation for amount of substance left in a first order decay gives us the age of the rock.
Explanation:
Half life of Uranium-235 = 700 million years (from literature)
The decay of radioactive substances follow first order reaction kinetics.
The general equation is given as
A(t) = A₀ e⁻ᵏᵗ
A(t) = Amount of radioactive substance left after a particular time = 6.25%
A₀ = initial amount of radioactive substance = 100%
t = time that has passed since the beginning = age of the rock = ?
k = decay constant
The decay constant is related to the half life (T) through the relation,
k = (In 2)/T
k = (0.693/700) = 0.00099 /million years
A(t) = A₀ e⁻ᵏᵗ
6.25 = 100 e⁻ᵏᵗ
0.0625 = e⁻ᵏᵗ
In e⁻ᵏᵗ = In 0.0625 = -2.7726
-kt = - 2.7726
t = (2.7726/0.00099) = 2800.6 million years
t = 2.8 billion years.
Hope this Helps!!!
Answer:
F. The telescope will be less able to detect dim objects, and it will be less able to resolve fine detail especially at longer wavelength
Explanation:
The telescope will be less able to detect dim object due to it's small aperture and can't also resolve fine and bright image.
It would be <span>D. It was a private company chartered by Queen Elizabeth . The countries and the colonies controlled by East India Company would later be transfer to the British crown but before that it is a company that is chartered to trade with other countries especially to India where they are mostly interested in.</span>
I agree with your statement that is stated so since it’s stated, that’s your statement
Answer:
Earth's energy budget accounts for the balance between the energy that Earth receives from the Sun
Explanation:
don't do me..... but I just looked it up lol
