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3 years ago

6

a current of 9 amps flows through a circuit lamp. which formula could be used to determine the resistance of the circuit when th

e power is 324 watts

1 answer:

maxonik [38]3 years ago

5 0

As, the formula of power=P = V*I
By using ohms law( V=I*R)
The formula of power become
P= I² * R
342/(9)²=R
R= 4 Ω

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Formula for Volume of a Cube: $V=s^3\\$ (s - side length)

Formula for Surface Area of a Cube: $SA=6s^2$ (s- side length)

<h3>For Cube 1:</h3>

The side length's 15 inches.

Find the volume:

$V=15^3\\\rightarrow 15*15*15=3375\\\boxed {V=3375}$

The volume of cube one is 3375in³.

Find the surface area:

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<h3>For Cube 2:</h3>

The side length's 8 inches.

Find the volume:

$V=8^3\\\rightarrow 8*8*8= 512\\\boxed {V=512}$

The volume of cube two is 512in³.

Find the surface area:

$SA=6(8)^2\\\rightarrow 8^2=64\\SA=6*64\\\boxed {SA=384}$

The surface area of cube 2 is 384in².

<em>Brainilest Appreciated. </em>

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