Physics
If both the mass and the velocity of a body is increased to twice of their magnitude, the kinetic energy will increase by

4 times
16 times
8 times
2 times

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Physics
Which of the following options correctly explains the term heat budget?

It is the radiation from the earth in the form of long waves.
It is a mode of transfer of heat through matter by molecular activity.
It is the balance between incoming and outgoing radiation
It is the amount of heat which the surface of earth receives from the sun.

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