Which of these statements expresses a key assumption in our most successful models for galaxy formation?

Physics

1 answer:

Tems11 [23]4 years ago

7 0

Answer:

(B) Some regions of the universe were slightly denser than others.

Explanation:

According to the Big Bang theory, after recombination, that is, when electrons and protons first became bound to form hydrogen atoms, some slightly denser regions of the almost uniformly universe, grew gravitationally, becoming denser, forming clouds, stars and galaxies.

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hydroelectric energy is based on the blank energy of water being converted to blank energy as waterfalls and pushes against the

Naddika [18.5K]

This is an example of kinetic to potential because the water is moving, pushing a turbine (Kinetic) and the turbine converts the energy to potential energy.

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3 years ago

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The frequency of a wave is 1) A) measured in cycles per second. B) measured in hertz (Hz). C) the number of peaks passing by any

7nadin3 [17]

Answer: E) all of the above

Explanation:

Frequency is the number of vibrations in one second. It is also defined as the number of crests that pass a point in a given time.

The frequency and the wavelength has an inverse relationship.

Frequency is measured in cycles per second or Hertz(Hz).

The relationship between wavelength and frequency of the wave follows the equation:

$\nu=\frac{c}{\lambda}$