Arrange the objects in order from least to greatest potential energy. assume that gravity is constant. (use pe = m × g × h.)
a 15-kilogram stone
found at a height of
3 meters
10 kilograms of water
stored at a height of
9 meters
a 1-kilogram ball located
20 meters in the aira box of books weighing
25 kilograms placed on
a shelf 2 meters high

The objects in order from least to greatest potential energy:

3<1<4<2

Explanation:

1. Potential energy of a 15-kilogram stone  found at a height of  3 meters:

2. Potential energy 10 kilograms of water  stored at a height of  9 meters:

3. Potential energy 1-kilogram ball located  20 meters in the air:

4. Potential energy box of books weighing  25 kilograms placed on  a shelf 2 meters high:

The objects in order from least to greatest potential energy:

3<1<4<2

anchor = archer //

i had this question and the answer was 3.15 miles.

martina travels from school to her mom's office. from there, she walks to school. after school, she walks to the library and then to a friends house before finally ending back at home. find martina's total distance traveled.

a) 0 miles  

b) 0.4 miles  

c) 1 mile  

d) 3.15 miles