Ask a New Question

Question

Two spheres are cut from a certain uniform rock.One has radius 4.50 cm.The mass of the other is five times greater. Find its radius.
14 years ago

Answers

Steve
Since the rock is of uniform density, the ratio of the masses is the same as the ratio of the volumes.

V = 4/3 pi r^3

So, 5 * 4/3 pi r^3 = 4/3 pi * 5 r^3 = 4/3 pi * (cbrt(5)*r)^3

So, the new radius is cube root 5 times the old one.
14 years ago
Tracy
the Answer is not 4/3pi times the cubed root of 5 times the r^3...it is just cubed root 5 times the radius of 4.5
10 years ago

Related Questions

What is the adverb in - On certain nights, I see stars everywhere. and The orbit of Uranus onc... The sum of the digits of a certain two-digit number is 7. Reversing its digits increases the number... Why does the production of certain crops concentrate in regions? Two spheres are cut from a certain uniform rock. One has radius 4.50cm. The mass of the other is fiv... Two spheres are cut from a certain uniform rock. One has radius 4.50cm. The mass of the other is fiv... Two spheres are cut from a certain uniform rock. One has radius 4.50m. The mass of the other is five... Two spheres are cut from a certain uniform rock. One has radius 4.50cm. The mass of the other is fiv... Which of the following are certain highly liquid financial assets that do not function directly or f... Which of the following are certain highly liquid financial assets that do not function directly or f...
Ask a New Question
Archives Contact Us Privacy Policy Terms of Use