Question

Arrange the objects in order from greatest to least potential energy. Assume that gravity is constant. (Use PE=m•g•h)

Answer 1

Explanation:

We calculate the potential energy in each case as a function of gravity and then organize.

Just like that:

`\begin{gathered} E_(P1)=15\cdot3\cdot g=45\text{ }g \\ \\ E_(P2)=10\cdot9\cdot g=90\text{ }g \\ \\ E_(P3)=1\cdot20\cdot g=20\text{ }g \\ \\ E_(P4)=2\cdot25\cdot g=50\text{ }g \end{gathered}`

Now we organize: