How was the value of G first determined?
a. by Cavendish, using a torsion balance
b. by Etvs, using a torsion balance
c. via a gedanken experiment
d. by Newton, watching an apple fall
e. none of the above
Question 2
If heavier elements are more stable when they have more neutrons, what happens to the heaviest elements?
a. They have very large nuclei to sustain the number of neutrons needed for stability.
b. Above a certain atomic mass, there are no stable elements.
c. For high enough atomic mass, there is no longer a rule to determine which nuclei are stable.
d. The curve reverses and the nuclei of the heaviest elements are more even matches of protons and neutrons.
e. The curve reverses completely and the nuclei of the heaviest elements are stable with many more protons than neutrons.
The small-scale distribution of different tree species in a Douglas-fir forest is determined by both
Like all animals, primates must balance their calories expended searching for food with calories, pr
Calcium balance.
The Concept of Water Balance
Acid–Base Balance
Acid–Base Balance