Question

Before a nuclear reaction, there is 0.01000 kg of uranium. After the nuclear reaction, there is 0.00950 kg of uranium. How much energy was released? (h = 6.63 × 10^-34 J * s)

A. 9.00 * 10^16 J
B. 4.50 * 10^13 J
C. 1.50 * 10^5 J
D. 5.00 * 10^-4 J

Answer 1

please wait a moment

Answer 2

ok!

Answer 3

here we have to apply the Einstein's formula:
\[E = {c^2}\Delta m = 9 \times {10^{16}} \times \left( {0.01 - 0.0095} \right) = ...Joules\]

Answer 4

ok! so we get 4.5E13! so our solution is choice B?

Answer 5

that's right!

Answer 6

yay! thanks! onto the next:)