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  1. For the pressure and temperature 4000m above sea level, Pb = 101325 (pascals) Tb = 288.15 (kelvins...

  2. 國泰機師條件 = same as those stated on their recruitment ad or website.

  3. Keeps the earth warm. If there is no greenhouse gases trapped in the atmosphere, our earth will be under -18 degree celcius

  4. ...to remain divergent. Statement (2) is right. As said in above , when the sphere touches the bottom of the container, all its +ve ...

  5. No. In the above situations, it is true that T does not... = (1)(-2) + (1)(10) T = 8 N If the above 3 cases happen successively, the tension of the fishing line...

  6. ...the projectile 1.5s after firing is 67.8 ms-1 in the direction 24.0* above the horizon.

  7. 1a.What is the heaviest gas in the world? If you are looking for an element then it will be radon (Rn). 2a.What is its density? Its density is (9.73 g/L). http://en.wikipedia.org/wiki/Radon http://www.radon...

  8. ... and his feet. So to speak, L1 is 1.45m above the ground and L2 is 0.70m above the ground. ...

  9. The above equations are right ,but he still had not changed the...

  10. (a) When sphere B is above sphere A, 0.003g = k(Q1).(Q2)/1^2 --------------------------- (1) where...