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  1. (i) Air above the heater rises, cool air from the farther side of the room moves...

  2. ... case: The coin is going up and at the position of 50 cm above the ground. This takes 0.113 s. The second...

  3. Beside the above , you will harden the iron bar. After the iron is heated, the...

  4. Answer given above is completely wrong. Waves emitted from mobile phones...

  5. ...question, you can use the formula: Power = Force x velocity The above formula is suitable for "uniform velocity motion" and "uniform acceleration...

  6. ... force = 104.4 N At an angle of tan-1 (10/104) = 5.5 deg. above the horizontal

  7. If you cannot see the above , please go to: http://i726.photobucket.com/albums/ww265/physicsworld2010/...

  8. ...h1 or h1 +H2 depending what the question is actually ask for ( above the cliff or above the sea level).

  9. ...the girl. Let h be the height at which the bottom edge of the mirror is above the floor. Then by similar triaangle, it is not difficult to obtain the...

  10. hei man there is something wrong with the above answer if Tcos(15) cancel mg there will be no vertical acceleration and the bob would...