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Algebra
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18 Nov 2019

a steel ball has a diameter of 14.6 cm and weighs 12500grams

(a) calculate the volume of the shere (Volume V= (4/3)piR^2,where R is the radius)

(b) the density (d) of a material is given by the equationd=m/V, where m is mass and V is volume. Using the information givenand your answer to (a), calculate the density of the steel ball

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Sixta Kovacek
Sixta KovacekLv2
28 May 2019
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Related questions

A white dwarf is a type of remnant star that will have about the same mass as the star​ did, but its radius will be much smaller. A certain white dwarf has a mass of 5 x 1030

kg and a radius of about 6300 km.

a. Calculate the average density of the white dwarf in units of kilograms per cubic centimeter.

b. What is the mass of a teaspoon of a material from a white​ dwarf? (A teaspoon is about 4 cubic​ centimeters.) Compare this to the mass of something familiar.

c. A neutron star is a type of stellar remnant compressed to even greater densities than a white dwarf. Suppose that a neutron star has a mass 1.6 times greater than the mass of the white​ dwarf, but has a radius of only 16 kilometers. What is its​ density? Compare the mass of 1 cubic centimeter of a neutron star to the total mass of Mount Everest​ (about 5×1010​kg).

a. Calculate the density of the white dwarf using the formulas shown below.

D = m/v where D is​ density, m is​ mass, and v is volume

v =4/3πr3​, where v is the volume of a sphere and r is the radius of the white dwarf

The average density of the white dwarf is about -------kilograms per cubic centimeter.

​(Round to the nearest whole number as​ needed.)



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