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CBSE Class 9 Answered

find power of work is given.find mass if power time and height are given.power of motor is 5kw find mass of water pumped to height of 20m in 60 sec.
Asked by | 26 Feb, 2012, 01:51: PM
answered-by-expert Expert Answer
P=W/t
P=mgh/t
 
use this formula and calculate .
Answered by | 26 Feb, 2012, 06:26: PM

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CBSE 9 - Physics
An object of mass 1kg is falling from the height h=10m.calculate a) the total energy of an object at h=10m b) potential energy of the object when it is at h=4m c) kinetic energy of the object when it is at h=4m d) what will be the speed of the object when it hits the ground
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CBSE 9 - Physics
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CBSE 9 - Physics
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