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nata0808
2 months ago
11

An aluminum wire of length 1.0 meter has a resistance of 9.0x10^-3 ohm. If the wire were cut into two equal lengths, each length

would have a resistance of
Physics
2 answers:
Sav [3.1K]2 months ago
0 0

Answer: since resistance is influenced by length, the resistance will be equally distributed as the wire is cut into two equal parts, resulting in

4.5 * 10^-3 ohm.

Explanation:

kicyunya [3.2K]2 months ago
0 0

Answer: Each segment would have a resistance of 4.5\times 10^{-3}\Omega

Explanation:

Let the resistance of each half of the wire be denoted as r.

This means,

r+r=R

where,

r = resistance of one half of the wire.

R = total resistance of the full wire = 9.0\times 10^{-3}\Omega

Resistance is known to be directly proportional to the length of the wire.

Total resistance of the aluminum wire = Sum of resistances of the two cut pieces.

r+r=9.0\times 10^{-3}\Omega

2r=9.0\times 10^{-3}\Omega

r=\frac{9.0\times 10^{-3}\Omega}{2}

r=4.5\times 10^{-3}\Omega

Therefore, each length will have a resistance of 4.5\times 10^{-3}\Omega

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C. The rate of water flow diminishes.
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In what processes do proteins in the electron transport chain participate?
kicyunya [3294]

Answer:

1. Reactions involving oxidation and reduction along with proton pumping

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Explanation:

During oxidative phosphorylation, there is a transfer of electrons from donors to acceptors, which constitutes a redox reaction.

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14 days ago
If a steady-state heat transfer rate of 3 kW is conducted through a section of insulating material 1.0 m2 in cross section and 2
Maru [3345]

Answer:

\Delta T = \frac{3000 W *0.025 m}{1 m^2 (0.2 \frac{W}{mK})}= 375 K

Consequently, the temperature difference across the material will be \Delta T = 375 K

Explanation:

In this case, we apply the Fourier Law of heat conduction expressed by the following equation:

Q = -kA \frac{\Delta T}{\Delta x}   (1)

Where k = thermal conductivity = 0.2 W/ mK

A= 1m^2 denotes the cross-sectional area

Q= 3KW signifies the heat transfer rate

\Delta T is the temperature difference we need to determine

represents the thickness of the material\Delta x=2.5 cm =0.025 m

To isolate \Delta T from equation (1), we obtain:

\Delta T =\frac{Q \Delta x}{Ak}

Initially, we convert 3KW to W, resulting in:

Q= 3 KW* \frac{1000W}{1 Kw}= 3000 W

With all variables accounted for, we can substitute and calculate:

\Delta T = \frac{3000 W *0.025 m}{1 m^2 (0.2 \frac{W}{mK})}= 375 K

Thus, the temperature difference across the material will be \Delta T = 375 K

5 0
20 days ago
An ideal spring is mounted horizontally, with its left end fixed. The force constant of the spring is 170 N/m. A glider of mass
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4 0
1 month ago
"What will the pressure inside the container become if the piston is moved to the 1.60 L mark while the temperature of the gas i
Softa [3030]

Esta pregunta está incompleta, la pregunta completa es;

La figura muestra un recipiente sellado en la parte superior por un pistón móvil. Dentro del recipiente hay un gas ideal a 1.00 atm. 20.0°C y 1.00 L.

"¿Cuál será la presión dentro del recipiente si el pistón se mueve hasta la marca de 1.60 L mientras se mantiene constante la temperatura del gas?"

Answer:

la presión dentro del recipiente será 0.625 atm si el pistón se mueve hasta la marca de 1.60 L manteniendo constante la temperatura del gas

Explicación:

Dado que;

P₁ = 1.00 atm

P₂ =?

V₁ = 1 L

V₂ = 1.60 L

la temperatura del gas se mantiene constante

sabemos que;

P₁V₁ = P₂V₂

por lo que hacemos la sustitución

1 × 1 = P₂ × 1.60

P₂ = 1 / 1.60

P₂ = 0.625 atm

Por lo tanto, la presión dentro del recipiente será 0.625 atm si el pistón se mueve hasta la marca de 1.60 L mientras la temperatura del gas se mantiene constante

5 0
1 month ago
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