Grade 11IIT JEE Entrance Exam

Explain the statement
“ Gravitation governs the motion of stars and slows the outward expansion of the entire universe because of the inward attraction of galaxies to other galaxies”

Vineeth

11 Years agoGrade 11

1 Answer

Arun

6 Years ago

There is an unlimited number of identical of three rows.

Number of arrangement of 7 balls in a row =3

Number of arrangement of 6 balls in a row =3

Number of arrangement of 5 balls in a row =3

Number of arrangement of 4 balls in a row =3

Number of arrangement of 3 balls in a row =3

Number of arrangement of 2 balls in a row =3

Number of arrangement of 1 balls in a row =3

∴ Number of arrangement of almost 7 balls in row that can be made (n)=3+3

As it is in GP

3−1

3(3

−1)

(2187−1)

×2186

=3×1093

n=3279

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Explain the statement “ Gravitation governs the motion of stars and slows the outward expansion of the entire universe because of the inward attraction of galaxies to other galaxies”

Vineeth

1 Answer

Arun

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