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Zinaida [17]
3 years ago
15

Which characteristics can be used to differentiate star systems? Select three options

Physics
2 answers:
Veseljchak [2.6K]3 years ago
7 0

Answer: 1,3, and 4 on EDGE science just did the assignment

Explanation:

Lady bird [3.3K]3 years ago
5 0

Answer:

Explanation:

the answer is a,c,d because the stars are characterized by the color temperature, size, composition, and brightness

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An astronaut is taking a space walk near the shuttle when her safety tether breaks. what should the astronaut do to get back to
GuDViN [60]

get hold of some of her equipment, and throw it away from the craft. she should recoil to the craft ... and  hope ???

7 0
2 years ago
Substitution solve for x &amp; y<br>-4x - 2y equals 14<br>-10x+7y=-25​
den301095 [7]

Answer:

-4×-2y=14 (1)

-10×+7y=-25 (2)

multiplying eq 1 by 7 and eq 2 by 2 and add eq. 1 and 2

-28×-14y=98

-20×+14y=-50

___________

-28×=48

×=48/-28

×=-12/7

now

-4×-2y=14

-4*-12/7-2y=14

48/7-2y=14

-2y=14-48/7

-2y=(98-48)/7

-2y=50/7

y=-50/14

y=-25/7

8 0
3 years ago
A spy satellite uses a telescope with a 1.7-m-diameter mirror. It orbits the earth at a height of 180 km.
WINSTONCH [101]

Answer: the minimum spacing that must be there between two objects on the earth's surface if they are to be resolved as distinct objects by this telescope 6.45 cm

Explanation:

Given that;

diameter of the mirror d = 1.7 m

height h = 180 km = 180 × 10³ m

wavelength λ = 500 nm = 5 × 10⁻⁹ m

Now Angular separation from the peak of the central maximum is expressed as;

sin∅= 1.22 λ / d

sin∅ = (1.22 × 5 × 10⁻⁹) / 1.7

 sin∅ = 3.588 × 10⁻⁷

we know that;

 sin∅  = object separation / distance from telescope

object separation =   sin∅ × distance from telescope

object separation = 3.588 × 10⁻⁷  × 180 × 10³

object separation =6.45 × 10⁻² m

then we convert to centimeter

object separation = 6.45 cm

Therefore the minimum spacing that must be there between two objects on the earth's surface if they are to be resolved as distinct objects by this telescope 6.45 cm

5 0
2 years ago
I was processing over this one i can tell u! C or D got me stumped, please help me
r-ruslan [8.4K]
D. be transported from place to place
because it does allow c to happen but not directly as it would have to go through condensation first.
When the water is evaporated in the air it can be moved from place to place by the wind.
3 0
3 years ago
Which three metals are in the third period (row) of the periodic table?
Anettt [7]
Sodium, magnesium, and aluminum! 
6 0
3 years ago
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