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thank u Alina

the steps are:

3.9x 10^33 x 3.1x 10^7

= 1.209 x 10^41

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Hola Roshni! The problem goes this way: The sun produces 3.9 x 10^33 ergs per second of radiant energy. How much energy does it produce in one year (3.1 x 10^7 seconds)?

It's a nice one! :D

The energy produced in one second is given. You have to calculate the energy produced in 3.1x10^7 seconds!

The operations are easy, though they do look nasty with exponents:)

Try again! ^_,^

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I can't understand how to use it .I've been trying for 3 days .

Please help me out.
thank

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9-C

Ans 1: Energy produced by the sun in 1 year = 3.9 * 10 ^33 * 3.1 * 10^7

= 1.209 * 10^41 ergs

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awwwwwww Anupama! calculate further!!!! it is soooooo simple! you were neeeeaaar!:)

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3.9 x 10^33 x 3.1 x 10^7 = 1.2 x 10^41 ergs

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Is this the answer:-

3.1 x 1.3 x 3 x 10^40

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SOORYA

IX M

amount of energy produced by sun in one year=3.9x10^33x3.1x10^7=12.09x10^40ergs

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Raji and Soorya, please try again!

Remember the standard form of exponents!!!! :)

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the sun produces 3.9*10^33 ergs in 1s

it will produce (3.9*10^33 *3.1*10^7)ergs in 1 year

12.09 X 10^40 ergs

- Rajalakshmi.B

10-A

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Dear all,

Please provide your name, class and section along with steps to your answer! Please don't remain nameless.... and read the instructions carefully! You needn't write the passwords here! All you have to do is provide an answer with appropriate steps:)

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3.9 x 10^33 x 3.1 x 10^7 = 1.209 x 10^41ergs.

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Anupama, you're near! remember the STANDARD FORM of exponents! :)))))))

Karthik, I can't see your answer! please provide the appropriate steps:)

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from 7-N

3.9X10^33 X 3.1X10^7 = 1.2 X 10^41 ERGS

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I got an answer. But i cannot enter the next wall.

Can you please check whether it is correct?

3.9x10^33 x 3.1 x 10^7

=12.09 x10^40 / 1209 x 10^38

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The Energy sun will produce will be = 3.9 x 10^33x3.1 x 10^7

That approximately is 1.208x10^40

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steps=   3.9*3.1*10^7*10^33

=12.09*10^40

=1.209*10^41

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1.2 x 10^41 ergs

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Nithya! I can't see your answer! :)

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Hello Everyone:

Read carefully:))) That's all I can say:)

It is verrrrry simple. No conversions needed:)

Rememeber the STANDARD FORM of exponents:)

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My answer is 1.209 x 10^3

this is how i got it:

erg=10^-7 j

radiant energy of sun =3.9 x 10^33 x 10^-7

=3.9 x 10^26 J/s

in one year=3.1 x 3.9 x10^33

=12.09 X 10^33

=1.209 x 10^34

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And here's the link to the next wall :

•http://padlet.com/wall/iakh4hjt7n Oh, don't go there without completing this one!!!

Calculators allowed.

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Problem 1: The sun produces 3.9 x 10^33 ergs per second of radiant energy. How much energy does it produce in one year (3.1 x 10^7 seconds)?

READ THE QUESTION CAREFULLY!!!!!!!!!!!!! ^_______________________________^