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2 years ago

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Explain how light elements and heavy elements formed differently.

1 answer:

slega [8]2 years ago

5 0

A star's energy comes from the combining of light elements into heavier elements in a process known as fusion, or "nuclear burning". It is generally believed that most of the elements in the universe heavier than helium are created, or synthesized, in stars when lighter nuclei fuse to make heavier nuclei.

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Light changes speed in a glass of water.

Explanation:

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2 years ago

What is the energy of an electromagnetic wave with a frequency of 8•10^12 Hz?

aniked [119]

Hello!

Find the Energy of the Photon by Planck's Equation, given:

E (photon energy) =? (in Joule)

h (Planck's constant) = $6.626*10^{-34}\:J * s$

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Therefore, we have:

$E = h*f$

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2 years ago

Two objects are brought into contact Object 1 has mass 0.76 kg, specific heat capacity 0.87) g'c and initial temperature 52.2 'C

taurus [48]

Answer:

$T_F=77.4\°C$

Explanation:

Hello there!

In this case, according to the given information, it turns out possible to set up the following energy equation for both objects 1 and 2:

$Q_1=-Q_2$

In terms of mass, specific heat and temperature change is:

$m_1C_1(T_F-T_1)=-m_2C_2(T_F-T_2)$

Now, solve for the final temperature, as follows:

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Then, plug in the masses, specific heat and temperatures to obtain:

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Yet, the values do not seem to have been given correctly in the problem, so it'll be convenient for you to recheck them.

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2 years ago

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The answer is the First One and the Third One

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2 years ago

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A family is another name for a<br> on the periodic table of elements.

topjm [15]

Answer:

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Explanation:

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2 years ago