Answer:
the ratio of the universe's helium to hydrogen by mass is 2:5 approximately.
Explanation:
To solve this question, we assign arbitrary values to these elements in tandem to the data given in the question.
nH, Number of Hydrogen atoms = X = 100
nHe, Number of Helium atoms = 0.1X = Y = 10
From the data given, by mass:
if the mass of Hydrogen atom = 1g = 100g
therefore, the mass of a Helium atom = 4g (1*4) = 40g
Mass ratio of Helium to Hydrogen = 40:100 = 4:10 = 2:5 approximately
So first, you would take 10 and raise it up to the 14th power. Then take 10, and raise it up to 10th power. After doing all the work, your answer should be 2.336E29.
I believe it's ;
<span>one truck load is 2.5*1.5*1 = 3.75m^3 </span>
<span>7/3.75 = 1.86 loads, </span>
<span>so 2 trips must be made.
Hope this helped! :)</span>
Answer:
it's a property of a cell, tissue and organisms that allows to maintain and regulate the stability and constancy to function properly
