Question

Which two types of potential energies would be types of mechanical energies?

A. Electrical and Kinetic
B.Nuclear and Chemical
C.Radiant and Thermal
D.Elastic and Gravitational

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Answer 1

D. Elastic and Gravitational

I took the test and got 100%, no lie. =-]

Answer 2

D ) Elastic and Gravitational

Step-by-step explanation:

Mechanical energy is defined as the sum of elastic, potential and kinetic energies.

Therefore potential energy and gravitational or potential energy are contemplated within the definition of mechanical energy.

`E_(M) = E_(e)+E_(k)+E_(p)\\where:\\E_(M)= Mechanical Energy\\E_(e) = elastic energy\\E_(k) = kinetic energy\\E_(p)= potential energy`

The units for energy are given in joules [J] for the SI and Btu for the IP system