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The volume of a sphere (V) varies direct...

The volume of a sphere (V) varies directly as the cube of its radius. The volume of the
sphere of radius 3 cm is ` 36 pi cm^(3)`. What is the volume of a sphere of radius 15 cm?

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`V(2)= 4//3 pi (2)^(3)= (32)/(3) pi m^(3)`
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ERRORLESS-BASIC MATHEMATICS AND VECTORS-Assertion & Reason
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  2. Assertion: vecAxxvecB is perpendicular to both vecA+vecB as well as ve...

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  3. Assertion: If vec(A).vec(B)= vec(B).vec(C ), then vec(A) may not alway...

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  4. Assertion: If theta be the angle between vec(A) and vec(B), then tan...

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  5. Assertion: If |vec(A)+vec(B)|=|vec(A)-vec(B)|, then angle between vec(...

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  6. Assertion: Vector product of two vectors is an axial vector. Reason:...

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  7. Assertion: Minimum number of non-equal Vectors in a plane required to ...

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  8. Assertion: The minimum number of non-coplanar Vectors whose sum can be...

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  9. Assertion: Vector addition of two vectors vedA and vecB is commutative...

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  10. Assertion: vecA.vecB=vecB.vecA Reason: Dot product of two vectors is...

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  11. Assertion: If dot product and cross product of vec(A) and vec(B) are z...

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  12. Assertion: A null Veactor is a vector whose magnitude is zero and dire...

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  13. Assertion: A physical quantity cannot be called as a vector if its mag...

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  14. Assertion: The some of two Vectors can be zero. Reason: The vector c...

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  15. Assertion: Two vectors are said to be like vectors if they have same d...

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  16. Assertion: The scalar product of two vectors can be zero Reason: If...

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