Which statement correctly describes mass-energy equivalence?

It can be represented using the formula E = m_c2.

It states that all energy in the universe will be converted to mass.

Explanation:

Mass energy equivalence is best described by "Einstein's theory" which is E=mc2.

Law of conservation of energy states that the energy can not be created and can not be destroyed. But energy can be changed from one form to the other form.

Similarly law of conservation of mass describes that mass cannot be created and can not be destroyed.

Einstein's theory E=mc2 states the relation between energy and mass that they are inter-convertible.

newton's first law of motion

answer: 2×10^-2kg

explanation: density= mass per volume

vol=mass/density

converting to s.i units we have;

3÷1000kg = 0.003

1.5÷100m = 0.15

0.003/0.15 = 0.02kg