- 62. A latex rubber balloon inflated with helium will soar up into the atmosphere if it is released. (11.7,11.9) (a) How will the balloon's volume change as it rises? Why? (b) What might be the ultimate fate of the balloon?
- 5) What is the gravitational potential energy (relative to infinite) of a 5.00times 10^3kg satellite that is in orbit with a radius of 9.90times 10^6 m around the Earth? (-2.0times 10^11J) 6) How much work is done against gravity in lifting the satellite in probler #5 to its orbital height? (1.11times 10^11J)
- 13. Quel est le diamètre (cm) d'uné balle d'or pesant 0,930lb_(m) sachant que la densité dé Tor est de 19,3.Vous devez utiliser l'analyse dimensionnelle.
- 5 Fill in the Blank 6 points When the professor sits on the skateboard and opens the valve of the fire extinguisher, a large volume of gas is type your answer. from the extinguisher very quickly. The square of the gas leaving the extinguisher in one square propels the professor on the skateboard in the square direction. Think back to Newton's 2nd law. If the professor had less typeyouranswer his acceleration would be type your answer.
- When the professor sits on the skateboard and opens the valve of the fire extinguisher, a large volume of gas is type your answer. from the extinguisher very quickly. The square of the gas leaving the extinguisher in one square propels the professor on the skateboard in the square direction. Think back to Newton'2nd law. If the professor had less square his acceleration would be type your arower.
