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raketka [301]
3 years ago
6

You discover a binary star system in which one member is a15MSun main-sequence star and the other star is a 10MSun giant. How do

we believe that a star system such as this might have come to exist?
Physics
1 answer:
bija089 [108]3 years ago
6 0

Answer:

Explanation:

The giant star must have at least once been the more massive star and then subsequently transferred some of its mass to its companion, the other star.

The two stars would be around the same age, so the more massive one would have turned into a giant first before the other one did or even had a chance to

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What type of bond is formed if atoms donate electrons to other atoms when the elements are combined?
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Ionic bond.

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Which is not a medium through which a mechanical wave could travel?
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A student claims "everything falls at the same acceleration rate on the Moon, where there is no air or friction," how would you
Alexeev081 [22]

Now let’s say you’re on the Moon. If you were to drop a hammer and a feather from the same height, which would hit the ground first?

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5 0
3 years ago
What is the energy of a photon with a frequency of 2.2 x 1016 Hz? Planck's constant is 6.63 x 10-34 Jos.
aleksandr82 [10.1K]

Answer: 1.5 × 10^-17

Explanation:

Given the following :

Frequency(f) = 2.2 × 10^16 Hz

Planck's constant(h) = 6.63 × 10^-34

The energy of a photon 'E' is given as the product of frequency and the planck's constant

E = hf

E = (6.63 × 10^-34) × (2.2 × 10^16)

E = 6.63 × 2.2 × 10^(-34 +16)

E = 14.586 × 10^-18

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E = 1.5 × 10-17 (2 S. F)

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