-2 is the answer to the problem
Answer:
The variation rate is 4.07 × 10⁻⁵ cm²/ºC
Step-by-step explanation:
The relationship of the change in length as a function of the temperature, which are given in this problem can be written by the expression for the area of a rectangle
a = L × W
Differentiating both sides,
= ![\frac{d(LW)}{dT}](https://tex.z-dn.net/?f=%5Cfrac%7Bd%28LW%29%7D%7BdT%7D)
= W
+ L ![\frac{dW}{dT}](https://tex.z-dn.net/?f=%5Cfrac%7BdW%7D%7BdT%7D)
The values they give us are
= 1.1 × 10⁻⁵ cm/ºC
= 8.9 × 10⁻⁶ cm/ºC
W = 1.6 cm
L= 2.6 cm
Substituting the values and calculating
= (1.6 × 1.1 × 10⁻⁵) + (2.6 × 8.9 × 10⁻⁶)
= (1.76 × 10⁻⁵) + (2.31 × 10⁻⁵)
= 4.07 × 10⁻⁵ cm²/ºC
The variation rate is 4.07 × 10⁻⁵ cm²/ºC
Answer:
0of i dont know sorry wish i could help but i'm usless =(
Step-by-step explanation:
I’m 90 percent sure that the proportion is 14.25
Answer:
![d=4\sqrt{5}](https://tex.z-dn.net/?f=d%3D4%5Csqrt%7B5%7D)
Step-by-step explanation:
I'm answering because I could use the points, but the answer is correct. For a full explanation, see the other posted question. :D