One step in the production of hydroelectric power involves _____.
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The acceleration due to gravity at the surface of the earth (mass M and radius R) is proportional to ___.
A unit of power is called a
Who designed the world's lightest satellite 'Kalamsat', which NASA launched and set a new world record?
Which is the brightest star in our night sky?
Boiling point of water is ___.
If a body is whirled in a circle, then the work done on it ___.
The rate of change of velocity is called