The energy stored in a dry cell is in the form of
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A ball, thrown vertically upward, rises to a height of 80 m and returns to its original position. The magnitude of its displacement after 7 s of motion will be ____. (take g = 10 m/s2)
The instrument used to determine the rotation speed of a shaft is called
What is the duration of the world’s shortest X–ray laser has been successfully created by the scientists?
Borosilicate glass wear is used in microwave oven because
A high jumper runs for a while before taking a high jump so that the inertia of __ helps him take the long jump.
AC is converted into DC by a
The SI unit of momentum is _____________.
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