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23 Nov 2019

Two uniform solid spheres have the same mass, but one has twice theradius of the other. The ratio of the larger sphere's moment ofinertia to that of the smaller sphere is
a) 4
b) 2
c) 4/5
d) 8/5

please explain answer as best you can. thanks!

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Jarrod Robel
Jarrod RobelLv2
23 Nov 2019

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Related textbook solutions

Physics: Principles with Applications
7th Edition, 2013
Giancoli
ISBN: 9780321625922

Related questions

Two forces are applied to a doorknob, perpendicular to the door.The first force is twice as large as the second force. The ratio ofthe torque of the first to the torque of the second is
a) 4
b) 1/2
c)2
d)1/4

please explain as best as you can the answer. Thanks!

True Or False?

1) A solid metallic conductor in the shape of a football is given a net positive charge.
The excess positive charge, as predicted by Gauss's law, is uniformly distributed over the surface of the conductor.


2) An excess charge Q is added to an isolated metal object of irregular shape.
No matter how you change the shape of this metal object,
this excess charge will always be found on its outside surface if it remains isolated.

3) Two spheres contain the same charge Q, but one sphere is twice the diameter of the other. The electric flux through the surface of the larger sphere is 4 times as great as the flux through the smaller sphere.

Which of the statements regarding this situation are true? Selectall that apply.

1-When one charged sphere is placed inside another the net electricfield outside the larger sphere is always larger than the field dueto the larger sphere alone.

2-If there is a positive point charge present at the center, thefield in all regions is either zero or directed away from thecenter.

3-When one charged sphere is placed inside another the net electricfield outside the larger sphere is always non-zero.

4-It is possible to have no electric field inside the outer sphereand a non-zero electric field outside the outer sphere.

5-If the outer sphere is present the electric field between itsinner radius and its outer radius (inside its solid wall, in otherwords) is always zero.

6-It is not possible to have a non-zero electric field inside theinner sphere and outside the outer sphere, but no electric fieldbetween the inner and outer spheres.

7-For a conducting sphere with a net charge Q, the electric fieldinside the sphere is zero and the electric field outside the sphereis the same as the field from a point charge of charge Q placed atthe center of the sphere.

8-As you move steadily out from the origin in this simulation theelectric field changes smoothly. The field can never jump suddenlyfrom one value to another.

9-If the outer sphere is present the way charge is distributed onthe outer sphere depends only on its charge, and not on the chargeof the point charge and the inner sphere.

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