Question & Answer: Page 1

Ranjita asks : The gravitational Potential diff. b/w surface of planet & a point 20m above it is 16J/Kg.Calculate the work done in moving a 4kg body by 8m on a slope of 60degree from horizontal.

Tag : moving,horizontal,potential,gravitational,planet,point,science,surface,slope,diff,work

Category : Science | On : 2011-12-31 03:58:36

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Lalasa says :

07/01/2012 07:26:26

WORK DONE IS 160 J

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Laxman goswami asks : Using the Lagrangian for the system of a planet and the Sun obtain the equation of motion. Use them to get the equations for the orbit.

Tag : system,equation,planet,obtain,orbit,equations,motion,lagrangian

Category : Civil Services (CSAT) | On : 2011-05-23 05:06:42

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Vinay kumar says :

05/06/2011 09:14:14

E=MC(SQARE)

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Bibin francis asks : Why Venus is called hottest planet,even if "Mercury is nearer than venus"?

Tag : venus,called,planeteven,mercury,nearer,hottest

Category : General Knowledge | On : 2009-06-10 06:17:33

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Isha says :

10/06/2009 08:20:02

Mercury receives the most solar radiation from the sun, but the same side of Mercury always faces the sun, so its dark side is very cold. By contrast, Venus, the hottest planet, has a carbon dioxide-rich atmosphere that traps all heat so that it cannot escape, like a greenhouse with no exhaust valve.

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Nishant aggarwal asks : How do the scientists determine the radius, mass, volume of certain planets? And how do they calculate the distance of that planet from some other celestial body [for example;- sun and earth] ? Please elaborate...