DO NOT SKIP!! Let’s see who’s smart enough to work out this problem if u get it correct I’ll mark u as BRAINLIEST

13.2J

Step-by-step explanation:

- m= 3kg, h= .45m, g=9.8 m/s

find formula for determining potential energy:

- P=mgh

plug numbers into equations, replacing variables:

- (3kg)(9.8)(.45)

a.

step-by-step explanation:

step 1 distribute 2 to every term in the parentheses

step 2 add 10 on both sides of the equal sign