When a person holds an object, it has potential energy. how will the potential energy change if the person lifts the object above his or her head?
a. the object's potential energy will be zero.
b. the object's potential energy will be the same.
c. the object's potential energy will be less.
d. the object's potential energy will be greater.

D. The objects potential energy will be greater.

Explanation:

Potential energy is expressed in

PE = mgh

Where PE is the product of mass of the object, g which is acceleration to gravity and height.

PE and height is directly proportional which means that any changes in height will change the value of the PE. Increase in height means increase in PE.

nacl or sodium chloride is an ionic compound. this is because an ionic compound pertains to a compound that consists of positively and negatively charged ions. in this case, na (sodium) has a tendency to lose one electron when it reacts with with other atoms, so the resulting sodium ion contains 11 protons and 10 electrons, thus making it positively charged (na+), when chlorine reacts, it usually gains one electron to form an ion called chloride, thus making it negatively charged ( since the ions are oppositely charged, they attract.