The answers shown are incorrect. Please be sure the answer is right I have asked

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The answers shown are incorrect. Please be sure the answer is right I have asked it a lot of times and I am running out of questions!

Wiley PL-i C Secure I https edugen wiley plus.com/edugen/student/mainfr uni Wiley PLUS Halliday, Fundamentals of Physics, 10e Calculus based Pliysics ror Scientists Lnginteers PHYS 211/212 Gradel ouk ORION Redel, Suudy & Preuuti open Assignment Chapter 14, Probl 2 Your answer Is partially correct, Try a A hollow sphere of inner radius 2.61 cm and outer radius 9.71 m floats halr-submerged in a liquid of density 799.00 kg/m (a) What is the mass of the sphere? (D) Calculate the density of the material of which the sphere is made. (a) Number ITU-1s437 (b) Numbe 132. Un Click if you would like to show work for this question OEen Show inrk Question Attempts: 2 of 10 used Dave LATEK NuHMII ANSwER Search the web and Window 6/23/20

Explanation / Answer

B)

NOTE: the density of liquid is not clearly visible. As far I can tell it is 789 kg/m3. So, I have solved it accordingly. Please change the value and solve the equation if it is not so.

Letthe density of sphere be d

So, using Archimedes principle:

d*((4/3)*pi*(0.0971^3 - 0.0864^3))*g = (789*(4/3)*pi*0.091^3/2)*g

So, d = 1335.1 kg/m3 <-------- density of sphere

A)

Mass of sphere = (4/3)*pi*(0.0971^3 - 0.0864^3)*1335.1

= 1.51 kg

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