https://curriculum.kcdistancelearning.com/courses/CHEMx-HS-U10/b/unit10/resources/docs/CH_10.C_practice.pdf

- anonymous

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- katieb

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- anonymous

@hwyl

- arindameducationusc

These questions are of which topic?

- hwyl

for the first problem
what do you think you should use ?

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## More answers

- anonymous

i don't understand this. period.

- hwyl

ah

- hwyl

so there is this general notion about the relationship of mass and energy. what they have in common is that they are both conserved, meaning that they are neither created nor destroyed.

- hwyl

in the famous formula proposed by Einstein, \(E = mc^2 \) it shows a great deal of relationship that energy and mass have a proportional relationship since the speed of light is constant

- sweetburger

I may be thinking wrong but would you take the mass and mulitply it by the speed of light squared to find the energy

- anonymous

words and equations. my brain is fried.

- hwyl

it is easy
all the numbers you need to work with are given
remember that the only constant is the speed of light and the rest are relative

- arindameducationusc

Is the answer 1.008 * 10^16....

- arindameducationusc

I also dont know but its interesting...

- anonymous

what does each variable stand for?

- sweetburger

E = energy M = mass C = speed of light

- sweetburger

E=m(C^2)

- sweetburger

the equation allows for the conversion between mass and energy

- anonymous

OMG THERE IS NO SPEED OF LIGHT IN THE FIRST QUESTION (SORRY MY CAPS KEY IS STUCK, IM FIXING IT)

- hwyl

use the constant speed of light \(\large 3.0 \times 10^8 \sf ~ms^{-1} \)

- sweetburger

^

- hwyl

it is easier to use the approximated value rather than be bogged down with the 2.9 ......... crap the purpose is to be able to know how to convert mass and energy

- anonymous

MY HEAD HUrts so bad. where did you get the ms ^ -1 ?

- sweetburger

its a measure of speed so its in meters per second...

- sweetburger

ms^-1 is the same thing as m/s

- hwyl

I am using \(ms^{-1} \) instead of \(\large \frac{m}{s}\)

- anonymous

either im too dumb for this or otherwise but i think i kind of sort of got grasp of it

- hwyl

if you remember in algebra lesson with the laws of exponent \(\huge \frac{1}{x} = x^{-1} \)

- sweetburger

@aric200 thats what pm's are for

- hwyl

http://www.mathsisfun.com/algebra/exponent-laws.html

- anonymous

#mathisnotfun

- arindameducationusc

Is the answer 1.008 * 10^16.... Can anyone check this? @hwyl

- hwyl

I don't think you're that dumb, you just didn't do your part of the reading to familiarize yourself with the concept :P

- anonymous

what is this reading you speak of?

- sweetburger

your class doesnt have a text book or some reading assignment?

- hwyl

if you want to skip the reading portion just watch and take down notes
https://www.youtube.com/watch?v=ql6TKCo2SZQ

- anonymous

no sir i am homeschooled, and the online books are well as fun as a blind guy has watching tv

- hwyl

take notes down

- anonymous

are you sure its not a link to where you got your pfp from?

- hwyl

;)

- sweetburger

bozeman science is fantastic

- hwyl

ya great for HS stuff

- anonymous

i lie bill nye

- anonymous

like* i also cant type , every nerve in my brain is doing salsa

- sweetburger

haha XD

- anonymous

you think i would kid around at 4 in the morning about my brain doing salsa? whats wonr with yuo

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