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daser333 [38]
3 years ago
6

What factor determines how long a star lives?

Physics
2 answers:
Makovka662 [10]3 years ago
8 0
Their lifespan is determined by how large they are and their weight.
german3 years ago
5 0
The factor that determines how long a star can live is the mass of the star, or how big the star is. 
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What is necessary to designate a position? A. a reference point B. a direction C. fundamental units D. motion E. all of these
max2010maxim [7]

Answer:

E. all of these

Explanation:

The designation of a point in space all the points that necessary

- reference point

- a direction

- fundamental units

- a direction

- motion

all are necessary to designate a point in space. Hence option E is correct.

For example in simple harmonic motion we need to specify all the above factors of the object in order to designate the position of the object.  

8 0
3 years ago
Identify the wavelength of this wave.
Zolol [24]

Answer:

A

Explanation:

The line(A) goes throughout the entire picture. So therefore choice A would be it's length.

3 0
3 years ago
Unlike other states of matter, what expand to fill their containers
padilas [110]

Answer:

gas

Explanation:

8 0
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Which equation was used by Albert Einstein to explain the photoelectric effect? [E = energy, h = Planck’s constant, and v = freq
Afina-wow [57]

Answer:

E = hv

Explanation:

  • The photoelectric effect is a phenomenon when the electromagnetic waves of a particular wavelength strike on the metal plate like zinc, it ejects the free electrons.
  • The ejected electrons have the kinetic energy and this energy is responsible for the electric energy.
  • The kinetic energy of the emitted electrons is linked with the frequency of the incident rays.
  • If the rays hitting the metal plate is below the minimum required threshold value, the photoelectrons are not ejected.
  • The photoelectric equation is given by

                            E = hν - ∅

Where, ∅ is the minimum energy required to remove an electron.

6 0
3 years ago
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jarptica [38.1K]

The answer would be:

A space station orbiting Earth.

7 0
3 years ago
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