Question

1. the equation e = mc² implies that: a. energy and mass are interchangeable b. the speed of light is constant c. energy increases linearly with mass d. mass can never be converted to energy

Explanation:

The equation $E = mc^{2}$ is Einstein's mass - energy equivalence formula. It shows that mass and energy are different manifestations of the same thing and can be converted into each other.

Answer:

A. Energy and mass are interchangeable