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Cerrena [4.2K]
3 years ago
14

What are all stars made of

Physics
1 answer:
ivolga24 [154]3 years ago
7 0
Stars are huge celestial bodies made mostly of hydrogen and helium that produce light and heat from the churning nuclear forges inside their cores. Aside from our sun, the dots of light we see in the sky are all light-years from Earth. They are the building blocks of galaxies, of which there are billions in the universe. It’s impossible to know how many stars exist, but astronomers estimate that in our Milky Way galaxy alone, there are about 300 billion.
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Explain why wine glasses with long stems have broad base​
Anna35 [415]

Answer:

The best glasses have a wider bowl than rim to allow for proper swirling. The swirl releases volatile aroma compounds and creates a vortex in the center of the glass towards which these compounds are drawn

Explanation:\\\

6 0
2 years ago
The diffusion coefficients for species A in metal B are given at two temperatures: T (°C) D (m2/s) 1020 8.01 × 10-17 1290 7.86×
Solnce55 [7]

Explanation:

Below is an attachment containing the solution.

5 0
3 years ago
You push a heavy crate out of a carpeted room and down a hallway with a waxed linoleum floor. While pushing the crate 2.5 m out
Alinara [238K]

Answer:

W = 1562.5 J

Explanation:

Path 1:

W₁ = F₁*d₁ = 385 N * 2.5 m = 962.5 J

Path 2:

W₂ = F₂*d₂ = 130 N * 10 m = 1300 J

Path 3:

W₃ = F₃*d₃ = (-350 N) * 2 m = - 700 J  (opposite to the motion)

We get

W = W₁ + W₂ + W₃ = 962.5 J + 1300 J + (- 700 J) = 1562.5 J

3 0
3 years ago
Choose the option that best answers the question. The hypotenuse of a right triangle is 16 ft longer than the length of the shor
FrozenT [24]

Answer: The hypotenuse is 26 ft.

Step-by-step explanation: Let's call the shorter leg of the triangle x. The hypotenuse would be x + 16 and the other leg is y.

As the area is 120, we know that x.y/2 = 120 (because it's a right triangle).

This way, y = 240/x

we know that in a right triangle, we have a² = b² + c²

(x + 16)² = x² + y²

(x + 16)² = x² + (240/2)²

x² + 32x + 256 = x² + 57600/x²

32x + 256 = 57600/x²

32x³ + 256x² = 57600 (÷ 32)

x³ + 8x² = 1800

x = 10

∴

x + 16 = 26

y = 240/10 = 24

3 0
3 years ago
Because a bond is not very easily forgotten if you work well with the person then you will work or
SashulF [63]

Answer:

...

Explanation:

4 0
3 years ago
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