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svetoff [14.1K]
3 years ago
9

Which of the following pairs of terms directly relates to the actual brightness of a star?

Physics
2 answers:
Aloiza [94]3 years ago
7 0

Answer:

D. absolute magnitude and apparent magnitude

yan [13]3 years ago
5 0
D. Absolute magnitude and apparent magnitude
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Properties of convex mirror
Ahat [919]

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The image result of an object reflected by a convex mirror is typically virtual, upright, and smaller. Discover how moving the object farther away from the mirror's surface affects the size of the virtual image formed behind the mirror

Explanation:

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3 years ago
Answer this question, please​
pashok25 [27]

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the correct answer is the 60

+ 20 + 60 \gamma  \beta

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3 years ago
Which of these is an example of a chemical reaction that occurs at a very slow rate?
spin [16.1K]

Answer:

acid rain

Explanation:

cause it desolved in slow ways

8 0
4 years ago
Read 2 more answers
How high would a projectile go if it was launched from ground level with an initial speed of 26 m/s at an angle of 30 degrees ab
tigry1 [53]

Answer:

Vy = 26 m/s sin 30 = 13 m/s      vertical speed

t = Vy / a = 13 m/s / 9.80 m/s^2 = 1.33 sec     time to reach Vy = 0

H = Vy t + 1/2 g t^2

H = 13 m/s * 1.33 sec - 1.33^2 * 9.8 / 2 m = 8.62 m

4 0
1 year ago
A car starts from rest and accelerates uniformly over a time of 18 seconds for a distance of 390 m. Determine the acceleration o
Sergeeva-Olga [200]

Answer:

a=2.4\ m/s^2

Explanation:

Given that,

The initial speed of a car, u = 0

Time, t = 18 s

Distance, d = 390 m

We need to find the acceleration of the car. Let it is a. Using the second equation of motion to find it.

d=ut+\dfrac{1}{2}at^2

or

d=\dfrac{1}{2}at^2\\\\a=\dfrac{2d}{t^2}\\\\a=\dfrac{2\times 390}{(18)^2}\\\\a=2.4\ m/s^2

So, the acceleration of the car is 2.4\ m/s^2.

5 0
3 years ago
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