An object with a mass of 20 kg is moving at a speed of 3 m/s. What is the kinetic energy of the object?

✑ First , Let's know what kinetic energy is :

⇾ The energy possessed by a body by the virtue of it's motion is called kinetic energy of the body. A flying bird , a moving car , running water , wind , a bullet fired from a gun , an arrow left from a bow , rolling stone etc are some examples of kinetic energy.

The Kinetic energy of a moving body is determined by the formula :

Here ,

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☇ Now , Let's solve :

☄ Given :

☄ To find :

⤿

Plug the values and simplify :

→

→

→

Hope I helped !

Have a wonderful day ! ツ

~TheAnimeGirl ♡

absorption lines are where light has been absorbed by the atom thus you see a dip in the spectrum whereas.

emission spectra have spikes in the spectra due to atoms releasing photons at those wavelengths.

explanation:

it is the second option.