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Sati [7]
3 years ago
9

What factor affects the color of a star?

Physics
2 answers:
Ugo [173]3 years ago
6 0

Surface temperature

Elena-2011 [213]3 years ago
4 0

the temperature and how far it is.

if it has the lowest surface temperature, it is red.

if it has high surface temperature, it is blue.

if you look a the earth science esrt, there is a graph stating the stars in our galaxy, the milky way, and how it far, hot/cold, and howold it is.

plz give me a brainliestt

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The unit of area is a derived unit. Why?
prohojiy [21]

Explanation:

area=length(m) ×breadth(m) . The unit of area is expressed in terms of fundamental units m^2.thus it is derived unit

8 0
2 years ago
John traveled East at 10 m/s for ten
NNADVOKAT [17]

Answer:

Option D

130 m

Explanation:

From the concept of speed, distance=speed*time

When traveling East, displacement=10*10=100 m (since he takes 10 seconds while traveling at a speed of 10 m/s)

When traveling West, displacement=5*6=30 m (since John takes 6 seconds to travel at a speed of 5 m/s)

Total displacement=Displacement East+ Displacement West=100+30=130 m

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3 years ago
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Answer:

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7 0
2 years ago
How do the tension of the cord and the force of gravity affect a pendulum
azamat

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T = 2 \pi \sqrt{\frac{l}{g}}

Hence, if the gravity increases then the time period of the pendulum will decreases and it will swing faster.

5 0
3 years ago
A flat metal washer is heated. As the washer's temperature increases, what happens to the hole in the center? A flat metal washe
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To solve this exercise it is necessary to take into account the concepts related to thermal expansion.

The thermal expansion is given by the function,

\Delta L = L_0 \alpha \Delta T

Where,

\Delta L= Change in Length

\Delta T =Change in Temperature

\alpha =Coeficiente de dilatación lineal

L_0 = Initial Length

By quickly deducing the formula, we can realize that the greater the change in temperature, the greater the change in the length of the radius.

The change in length is proportional to the change in temperature. Considering that the other two terms are constant we have that the correct one would be: <em>The hole in the center of the washer will expand.</em>

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3 years ago
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