- #1
mikezietz
- 11
- 0
I have 3 ideas that i am stuck on,
1. If you have water displaced in Newtons by a floating object, is the Newtons displaced of oil or any other liquid, what is the equation to find this. I tried many equations with densities and bouyant forces, but i can't seem to get the right answer, i was maybe thinking since it is Newtons of water replaced and oil replaced, not mass, that maybe the Newtons of water replaced equals Newtons of anything replaced. meaning if 100 N of water is displaced, 100 N of oil will be displaced by the same object, Am i correct in thinking this?
2. If you have a pendlum swinging from an elevator accelerating upwards, in taking the equation of pendlum's being period = 2 * pi * sqrt( L / g ), would you just add the acceleration to g by changing the part in the equation where g is to
(g + a)?
3. I am trying to find the difference in periods of 2 planets with different masses, and different eccentricity, i have been hunting through my book for an hour, and another hour or 2 on the internet, and cannot find an equation that can give me these differences in periods. I was wondering what the impact of eccentricity is on a period. Is a bigger eccentricity going to cause a longer period? I cannot find this property anywhere.
thanks.
1. If you have water displaced in Newtons by a floating object, is the Newtons displaced of oil or any other liquid, what is the equation to find this. I tried many equations with densities and bouyant forces, but i can't seem to get the right answer, i was maybe thinking since it is Newtons of water replaced and oil replaced, not mass, that maybe the Newtons of water replaced equals Newtons of anything replaced. meaning if 100 N of water is displaced, 100 N of oil will be displaced by the same object, Am i correct in thinking this?
2. If you have a pendlum swinging from an elevator accelerating upwards, in taking the equation of pendlum's being period = 2 * pi * sqrt( L / g ), would you just add the acceleration to g by changing the part in the equation where g is to
(g + a)?
3. I am trying to find the difference in periods of 2 planets with different masses, and different eccentricity, i have been hunting through my book for an hour, and another hour or 2 on the internet, and cannot find an equation that can give me these differences in periods. I was wondering what the impact of eccentricity is on a period. Is a bigger eccentricity going to cause a longer period? I cannot find this property anywhere.
thanks.
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