Answer:
14 ohms
Step-by-step explanation:
The resistance varies directly with length, so increasing the length by a factor will increase the resistance by the same factor.
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The length of the wire increased by a factor of 1.4 from 100 ft to 140 ft. That means the resistance will increase by a factor of 1.4 from 10 ohms to 14 ohms. (The diameter did not change.)
The longer wire will have a resistance of 14 ohms.
Multiply the numerator and denominator by the same #.
So:
27/81 x 2 = 54/163
27/81 x 3 = 81/244
Or, simplify:
<span>27/81 / 3 = 3/9 ......... = 1/3</span>
Answer:
Life is hard
Step-by-step explanation:
Doi
Answer:
I believe it's a^2 * b^2 = c^2
Step-by-step explanation:
a^2 * 9^2 = 15^2
hope this helps! :)
Answer:
To find the scale factor, we simply create a ratio of the lengths of two corresponding sides of two polygons. If the ratio is the same for all corresponding sides, then this is called the scale factor and the polygons are similar.