Select the correct equations that show that the gravitational potential energy of a 1000-kg boulder raised 6 m above ground level is 60,000 j. (you can express g in units of n/kg because m/s2 is equivalent to n/kg.)

Explanation:

The gravitational potential energy of an object is defined as:

where

m is the mass of the object

g is the gravitational acceleration

h is the height of the object above a reference level (usually, the ground)

For the boulder in the problem,

m = 1000 kg

g = 10 N/kg

h = 6 m

Substituting,

an ion is a charged atom or molecule. it is charged because the number of electrons do not equal the number of protons in the atom or molecule. an atom can acquire a positive charge or a negative charge depending on whether the number of electrons in an atom is greater or less then the number of protons in the atom.