9 is the atomic number of fluorine
i need that too for the homework i have
The entire mass of a black hole
Answer:
784500 Joules
Explanation:
To start, you will need an equation to find the change in energy. This can be found by using
or by using integrated heat capacities.
to find the mass of water,

1kg/L is the density of water.
Then, 
Notice that all of the units do not cancel out properly, so some unit conversions are needed to find the correct answer.
Yes I was surprised and learn so much and it was no problem!