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  1. ...small element from the edge. 0<= y <= x/4 To raise the small element up on the edge, the work done = dm gy = pgydy To find...

  2. ...that PE=mgh means that the ENERGY NEEDED TO RAISE THE OBJECT, that energy will be stored in PE. E...

  3. ...呢個ge work done係垂直..即係mgh the energy is needed for raised at 2ms-1... P=E/t 15x1000=mgh per s/t(per s) 15000w=m x10x2 m=750kg...

  4. ...by vigorous collisions because of the heat of the flame. The flame raises the temperature of the air surrounding it, thus causes the air ...

  5. ...1000 X 10 X 60 = 600 000 J Energy required to raise the temperature of the water from 20*C to 100*C = (0.5)(4200)(100 - 20...

  6. ...kg Now, Energy lost as heat by the drill is used to raise the tempature of the iron and water So, E = (mc + MC)(T2...

  7. ...under pressure. As such, its boiling point has been raised so that it can be used to measure temperatures above its normal...

  8. you can see everything at daytime... you can see the sun... no matter sun raise or sun set.. at nighttime... you can see the moon and stars please book a seat near the window thanks

  9. ... the image of the coin, as seen above the water surface, is raised . (b) Assume the cup is filled full of water.Apparent...

  10. ...of the incident photon is absorbed by the target atom, which is raised to an excited state. The energy of the photon decreases...