Answer:
(B) The number of protons - only the number of protons in the nucleus determines the element - mass and neutrons can vary for the same element
<span>So, if the man weight 900 newtons on Earth then that means, using F=ma, that the mass of the man is approximately 91.84 kg. This is because 900N=m(9.8m/s^2), and so it follows that 900/9.8=91.84. Using the man's found mass we then plug this into F=ma again. It follows that F=(91.84)(25.9)=2378.57N. This means that the man "weighs" 2378.57 Newtons on Jupiter, or about 2.5x as great as his weight on Earth. This makes sense, considering that 25.9/9.8 is approximately equal to 2.64.</span>
The part that it played was in the changing of the environment/climate for the organisms that live on those continents. And the part it could've played was the way that the organisms had to adapt to that climate and it stayed that way over generations.
Answer:
10⁴¹ s quark top lives have been in the history of the universe.
Explanation:
You need to determine how many quark top lives there have been in the history of the universe, that is, what is the age of the universe divided by the lifetime of a top quark. Expressed in a formula, this is:
![t\frac{Age of the universe}{Lifetime of a top quark}](https://tex.z-dn.net/?f=t%5Cfrac%7BAge%20of%20the%20universe%7D%7BLifetime%20of%20a%20top%20quark%7D)
Yo know that the "Age of the universe" is 100,000,000,000,000,000 which can also be expressed as 10¹⁷ s
.
You also know that the "Lifetime of a top quark" is 0.000000000000000000000001 which can also be expressed as 10⁻²⁴ s.
Then ![t=\frac{10^{17} }{10^{-24} }](https://tex.z-dn.net/?f=t%3D%5Cfrac%7B10%5E%7B17%7D%20%7D%7B10%5E%7B-24%7D%20%7D)
Recalling that the result of dividing two powers of the same base is another power with the same base where the exponent is the subtraction of the initial exponents, it is possible to calculate this division as follows:
![t=10^{17-(-24)}](https://tex.z-dn.net/?f=t%3D10%5E%7B17-%28-24%29%7D)
![t=10^{17+24}](https://tex.z-dn.net/?f=t%3D10%5E%7B17%2B24%7D)
<u><em>t=10⁴¹ s</em></u>
So <u><em>10⁴¹ s quark top lives have been in the history of the universe.</em></u>