Question

How much mass is equivalent to 1 MJ of energy?

Answer 1

A. 1.1 10^-5 kg
B. 1.1 10^-11 kg
C. 3.3 10^-3 kg
D. 9.0 10^22 kg

Answer 2

e = mc^2

Answer 3

can you help me to use it?

Answer 4

cause i got this question and have never been taught to put it into equation

Answer 5

c = speed of light in meters / second

Answer 6

Einstein's famous equation

Answer 7

still confused what do i do with that to tell how many kg its equal to?

Answer 8

speed of light is 3 * 10^8 m / s

Answer 9

so m = 1,000,000 / (3*10^8)^2 = 1.1 8 10^-11 kg

Answer 10

* 1.1 * 10^-11 kg

Answer 11

e = m c^2
so m = e / c^2

Answer 12

mass = energy / square of speed of light

Answer 13

an amazing amount of energy is formed from such a tiny mass. That's why the atomic and hydrogen bombs are so destructive.

Answer 14

where di the 1,000,000 come from?

Answer 15

1 MJ = 1 mega joule or 1,000,000 joules of energy

Answer 16

written in scientific notation it is 1 * 10^6