Home » Ask & Discuss » Physics. » Magnetism « Back to Discussion

Magnetism

Blazing goIITian

Joined:	23 Jun 2009
Post:	448

23 Feb 2010 13:04:37 IST

0 People liked this

997

moment of inertia of hollow cone

None

moment of inertia of hollow cone

Share this article on:

Comments (5)

Sagar Saxena

Forum Expert

Joined: 8 Oct 2008

Posts: 6343

27 Feb 2010 11:04:52 IST

Like 3 people liked this

hii

7837-833_7662_120px-Moment_of_inertia_cone.svg.png

consider this hollow cone ,now cut a ring of thickness dx at a distance x from the origin ,

so radius of the ring will be r'=xtanΘ where Θ is the half angel of cone

so moment of inertia of this ring is dI =dm r'²

dm =[ M/πrL ]2πr'dL where L is slant hight

=[2M/rL]r'dx/cosΘ

so dI =[2M/rL]r'³dx/cosΘ

=tan³Θ/cosΘ [2M/rL]x³dx

=tan³Θ [2M/rh]x³dx

I =_o∫^h tan³Θ [2M/rh]x³dx

I=mr²/2 !!!!!

FORESTS

Blazing goIITian

Joined: 23 Jun 2009

Posts: 448

27 Feb 2010 12:57:02 IST

Like 2 people liked this

HAVE A SALUTE FROM ME PLEASE SEE A PROBLEM IN PHYSICAL CHEMISTRY AS UNDER AND REPLY

FORESTS

Blazing goIITian

Joined: 23 Jun 2009

Posts: 448

27 Feb 2010 12:58:04 IST

Like 2 people liked this

The figures given below show the location of atoms in three crystallographic planes in a FCC lattice. Draw the unit cell for the corresponding structures and identify these planes in your diagram.

FORESTS

Blazing goIITian

Joined: 23 Jun 2009

Posts: 448

27 Feb 2010 15:52:58 IST

Like 2 people liked this

SOME ONE REPLY

FORESTS

Blazing goIITian

Joined: 23 Jun 2009

Posts: 448

27 Feb 2010 15:54:30 IST

Like 2 people liked this

PLEASE REPLY MY QUESTION

Quick Reply

Reply

	Some HTML allowed.
	Keep your comments above the belt or risk having them deleted.
	Signup for a avatar to have your pictures show up by your comment
	If Members see a thread that violates the Posting Rules, bring it to the attention of the Moderator Team