Ball A will have three times the speed as ball B
Answer:
I think is B.Their atomic numbers increase by 1 from left to right.
The total electric potential energy is .
Electric Potential Energy of a System of Charges :
The system's electric potential energy is equal to the amount of work necessary to create a system of charges by guiding them toward their designated locations from infinity against the electrostatic force without accelerating them. The symbol for it is U.U=W=qV. Electrostatic fields are conservative, therefore the work is independent of the path.
Assume three charges q₁ , q₂ and q₃ bring from infinity to point P.
To bring q₁ no work is done,
where, V = electric potential energy.
q = point charge.
r = distance between any point around the charge to the point charge.
k = Coulomb constant; k = 9.0 × 109 N.
Now bring q₂,
Work done by q₁ ;
Now bring q₃,
Work done on q₃ by q₁ and q₂
This work done is stored in the form of potential energy.
∴U=W= potential energy of three systems.
Learn more about electric potential energy here:
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The Paleozoic era spanned from the Cambrian to the Permian and ended with a mass extinction at the end of the Permian. Geologists are still unsure of the cause but the theories include a meteorite impact or a massive volcanic event in Siberia or a combination of both. This could be a possible cause of the melting of the late Paleozoic ice sheets.
"A train blows its horn as it travels towards you, and you perceive the pitch of the horn to increase" is an example of the Doppler effect.
<u>Explanation:</u>
Christian Doppler, physicist from Austria was the first to launch "Doppler effect" in 1842. It is variation in wave frequency in the response to a body or object which move nearby the waves sources. The phenomenon is observed in sound, light and other waves.
As the source of the wave moves closer to the listener the frequency of the wave increases in sound waves while the sound starts to faint when the source moves away.
Doppler effect is applicable in a mechanism called red shift or blue change in order to calculate the velocity at which stars and galaxies approach or recede from us.