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प्रश्न
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संबंधित प्रश्न
Define 1 J of work.
An electron emitter must have _____________ work function and ___________ melting point.
Work is said to be done by a forte only when ................
In which of the following cases, is work being done?
(i) A man pushing a wall.
(ii) a coolie standing with a load of 12 kgf on his head.
(iii) A boy climbing up a staircase.
Find the kinetic energy of a body of mass 1 kg moving with a uniform velocity of 10 m s-1.
A car is running at a speed of 15 km h-1 while another similar car is moving at a speed of 45 km h-1. Find the ratio of their kinetic energies.
Name the physical quantity whose SI unit is Nm.
A coolie, with a load of 30 kg on his head, walks on the platform. If he walks a distance of 60 m, what is the work done by him?
One labourer carried four pans of road metal through a distance of 100 metres. If he carries two pans of road metal through a 200 metre distance ______ work will be done.
