Assume the radius of a neutron to be approximately 1.0 times 10-13 cm, and calcu

Question

Assume the radius of a neutron to be approximately 1.0 times 10-13 cm, and calculate the density of a neutron. [Hint: For a sphere V = (4/3)pi r3.] Express your answer using two significant figures. Assuming that a neutron star has the same density as a neutron, calculate the mass (in kg) of a small piece of a neutron star the size of a spherical pebble with a radius of 0.16mm. Express your answer using two significant figures. Try Again; 5 attempts remaining The correct answer does not depend on the variable: x10.

Explanation / Answer

mass of neutron=1.6749286*10-27 kg;....volume of neutron=(4/3)*3.14*(1*10-15)^3 m3=4.18*(10)^-45 m3;.............Density of neutron =mass/volume=3.99*(10)^17 kg/m3=3.99*(10)^14 gm/cc......Volume of the neutron star=(4/3)*3.14*(0.16*10^-3)^3=1.715 *10^-11 m3..So mass of neutron star=6845756.59 kg

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