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3 years ago

What is the energy equivalent of an object with a mass of 2.5 kg?

Physics

2 answers:

Bad White [126]3 years ago

8 0

This is the answer on Edgenuity 2.25*10^17

N76 [4]3 years ago

5 0

Answer : Energy equivalent of an object with a mass of 2.5 kg is $E=2.25\times 10^{17}\ J$ .

Explanation :

It is given that mass of an object is, m = 2.5 kg

It is required to find energy equivalence.

According to mass energy equivalence relation :

$E=mc^2$

Where,

m is the mas of an object.

c is the speed of light $c=3\times 10^8\ m/s$

$E=2.5\ kg\times (3\times 10^8)^2\ m/s$

$E=22.5\times 10^{16}\ J$

$E=2.25\times 10^{17}\ J$

Hence, this is the required solution.

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Lets take it down a notch and break it down:

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A. They both have charges

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Why? Electrical forces have positive and negative charges while magnetic forces have a north and south POLE. These two are different forces, therefore magnetic forces do not HAVE charges.

B. In both, opposites attract

We all know opposite poles attract, like poles, don't attract (repelling force). This is true for the magnetic force, now, the electric force, two positively charged particles will exert a repulsive force on one another. DING DING. We have a winner. <u>B is TRUE.</u>

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False, this is a joke question right? Don't even look at this one!!!!!!!!!

<u>Therefore, </u><u>B</u><u>, is the only true answer that describes how magnetic and electric forces are similar. </u>

Have a nice day!

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3 years ago