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Veseljchak [2.6K]
3 years ago
15

What is the relationship between the temperature of a star and its luminosity?

Physics
1 answer:
Sladkaya [172]3 years ago
3 0
The Luminosity of a star is proportional to its Effective Temperature to the 4th power and its Radius squared.
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l=3.5 x 10^-10m

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An object is placed between two plain mirrors which make angle 45 degree with each other. Distance between all adjacent images a
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I have a formula here that might just help you solve the problem on your own:

The number of images depends on the angle between the two mirrors. The number of images formed in two plane mirrors inclined at an angle A to each other is given by the formula:

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3 years ago
Can an object in motion ever change directions?
choli [55]

Answer:

Forces affect how objects move. They may cause motion; they may also slow, stop, or change the direction of motion of an object that is already moving. Since force cause changes in the speed or direction of an object, we can say that forces cause changes in velocity.

4 0
3 years ago
After the big bang, atoms in gas clouds experienced a greater gravitational pull to each other than atoms in other regions of th
allsm [11]
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These are the two statements with scientific facts that explain the described phenomenon
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Gravitation between two objects increases when the distance between them decreases.</span>

When the mass of an object increases, its gravitational pull also increases.

Justification:

Those two facts are represented in the Universal Law of Gravity discovered by the scientific Sir Isaac Newton (1642 to 1727) and published in his book <span>Philosophiae naturalis principia mathematica.</span>

That law is represented by the equation:

F = G × m₁ × m₂ / d²

The product of the two masses on the numerator accounts for the fact that the gravitational force is directly proportional to the product of the masses, which is that as the masses increase the attraction also increase.

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6 0
3 years ago
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