Name and describe the six layers of the sun, in order from innermost to outermost.

1 answer:

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1.) core- the central region where nuclear reactions consume hydrogen to form helium

2.) radiative zone- the section of solar interior between the innermost core and the outer convective zone.

3.) convection zone- where light (photons) is created.

4.) photosphere- the visible surface of the sun that we are most familiar with

5.) chromosphere- second most outer layer of the sun. due to low density it is relatively transparent and only apparent during eclipses.

6.) corona- an aura of plasma that surrounds the sun and other stars but is usually hidden by the bright light of the sun’s surface.

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I what is the resistance of

Lynna [10]

The resistance of a conductor is given by:
$R= \frac{\rho L}{A}$
where
$\rho$ is the resistivity of the material
L is the length of the conductor
A is its cross-sectional area

We can use this formula to solve both parts of the problem.

a) The length of the copper wire is L=1.0 m. Its diameter is d=0.50 mm, so its radius is
$r= \frac{d}{2}=0.25 mm=0.25 \cdot 10^{-3} m$
And its cross-sectional area is
$A=\pi r^2 = \pi (0.25 \cdot 10^{-3}m)^2 = 1.96 \cdot 10^{-7} m^2$
The copper resistivity is $\rho=1.68 \cdot 10^{-8} \Omega m$ , therefore the resistance of this piece of wire is
$R= \frac{\rho L}{A}= \frac{(1.68 \cdot 10^{-8} \Omega m)(1.0 m)}{1.96 \cdot 10^{-7} m^2}= 8.57 \cdot 10^{-2} \Omega$

b) The length of this piece of iron is L=10 cm=0.10 m. Its cross-sectional size is L=1.0 mm=0.001 m, so its cross-sectional area is
$A=L^2 = (0.001 m)^2 =1 \cdot 10^{-6}m^2$
The iron resistivity is $\rho = 9.71 \cdot 10^{-8} \Omega m$ , therefore the resistance of this piece of wire is
$R= \frac{\rho L}{A}= \frac{(9.71 \cdot 10^{-8} \Omega m)(0.10 m)}{1.0 \cdot 10^{-6} m^2}=9.71 \cdot 10^{-3} \Omega$

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3 years ago

The response of an object to the force of gravity is called its __________________? Question 7 options: density volume mass weig

coldgirl [10]

The answer is weight

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3 years ago

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What is the type of intermolecular force in methylated spirits

Olin [163]

. Methylated spirits have ethanol as a base but may include methyl alcohol (methanol) as part of the denaturing process.

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