State the theorem of parallel axes for the moment of inertia.
Meera Madhu asked:
“is there any priciples of phy involed in chemical reactions ?”
Physics and Chemistry are the two main branches of Physical Science, the branch of science which discusses nature and its properties and the various phenomena associated with it.
Some of the Principles to mention are
The Principles of conservation,
How to hold a test tube, pipette, Burette etc?
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“could u please explain me what is earth’s [wiki]magnetic field[/wiki]? in detail and easily in brief?”
Please refer to http://hyperphysics.phy-astr.gsu.edu/hbase/magnetic/magearth.html for details. If you have any specific doubts related to it please ask as comment here.
Also see http://en.wikipedia.org/wiki/Earth’s_magnetic_field