- #1

drsponge

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Figured it out!

Last edited:

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- Thread starter drsponge
- Start date

- #1

drsponge

- 7

- 0

Figured it out!

Last edited:

- #2

Mark44

Mentor

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An obvious first step would be to divide each side of the first equation by the corresponding side of the second equation.## Homework Statement

P =aR^{2}T^{4}

and

E = p /bd^{2}

(aandbare constants.)

## Homework Equations

If these two equations are combined and rearranged an expression can be derived for a/b:

a/b= Ed^{2}/ R^{2}T^{4}

Show how this has been done, step by step.

## The Attempt at a Solution

I have no idea where to begin & I can't find good instruction anywhere on how to handle this.

- #3

scurty

- 392

- 17

## Homework Statement

P =aR^{2}T^{4}

and

E = p /bd^{2}

(aandbare constants.)

## Homework Equations

If these two equations are combined and rearranged an expression can be derived for a/b:

a/b= Ed^{2}/ R^{2}T^{4}

Show how this has been done, step by step.

## The Attempt at a Solution

I have no idea where to begin & I can't find good instruction anywhere on how to handle this.

Are little p and big P the same variable? In the final equation they don't appear so I would assume you solve for P in one equation and plug it into the other equation for P.

- #4

drsponge

- 7

- 0

Are little p and big P the same variable? In the final equation they don't appear so I would assume you solve for P in one equation and plug it into the other equation for P.

Sorry they're the same variable.

- #5

drsponge

- 7

- 0

An obvious first step would be to divide each side of the first equation by the corresponding side of the second equation.

I don't know how this would go though? Divide both sides by P / bd

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