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Physics Examples

$P = \frac{W}{t}$

$P$	$=$	$2452.5 W$
$W$	$=$	$?$
$t$	$=$	$5 s$

Step 1

Solve for

$W$ .

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Step 1.1

Rewrite the equation as

$\frac{W}{t} = P$ .

$\frac{W}{t} = P$

Step 1.2

Multiply both sides by

$t$ .

$\frac{W}{t} t = P t$

Step 1.3

Simplify the left side.

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Step 1.3.1

Cancel the common factor of

$t$ .

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Step 1.3.1.1

Cancel the common factor.

$\frac{W}{t} t = P t$

Step 1.3.1.2

Rewrite the expression.

$W = P t$

$W = P t$

$W = P t$

$W = P t$

Step 2

Substitute the given values into

$W = P t$ .

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Step 2.1

Substitute

$2452.5 W$ for

$P$ .

$W = 2452.5 W t$

Step 2.2

Substitute

$5 s$ for

$t$ .

$W = 2452.5 W (5 s)$

$W = 2452.5 W (5.00 s)$

Step 3

Simplify the right side.

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Step 3.1

Multiply

$5.00$ by

$2452.5$ .

$W = 12262.500 (W s)$

Step 3.2

Rewrite

$W s$ as

$J$ .

$W = 12262.500 J$

$W = 12262.500 J$

Step 4

Round to

$3$ significant figures.

$W = 1.23 \cdot 10^{4} J$

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$[\begin{array}{c} x^{2} & \frac{1}{2} \\ \sqrt{π} & \int x d x \end{array}]$