Skip Navigation
List you predictions here.
  • Choice 1: Harris

    Choice 2: Trump

    Choice 3 / 4: Someone who has no chance to win (new parties have to get more influencal at local levels before having any chance to win) = doesn't change anything about the result = not voting = only a valid choice if you think Harris and Trump are equally bad

    But yes your democratic system really is flawed. I expect Harris to win the popular vote while Trump wins the electoral college but hope for the best - Trump has proven already that he only cares about money (eg tax cuts for rich people)

  • List you predictions here.
  • but also Harris has pissed off everyone vaguely left and essentially every Muslim.

    I really don't get that point - does the American left wing really thing Trump would be a better choice? Do American Muslims think that Trump will support Israel less?

    With your system you only can choose between Trump and Harris, so pick whichever you think is less bad if you agree with neither.

  • Houses in my area increases 82% in just 4 years
  • More like that they probably are too young to have bought a home earlier. All people in their 20s (and I think we make a large percentage of Lemmy users) simply have to cope and buy some overpriced home regardless.

  • epstein didn't kill himself
  • Hitler became the leader of a movement, but he wasn't the one to start it. After ww1's peace treaties a second war was basically unavoidable, even if national socialism wasn't a thing.

    If you really want to change the tides of history you have to start earlier, prevent a movement when it's forming instead of killing its leader.

  • ur dada so buff he falls significantly faster than g
  • The acceleration relative to the earth is the same, relative to some point from another system the bowling ball accelerates very slightly slower but accelerates the earth very slightly more towards it. The total acceleration of these two bodies towards each other is g.

  • ur dada so buff he falls significantly faster than g
  • You said the two objects accelerate at the same rate, but then in the PS you said the feather gets accelerated faster. What do you mean?

    Both accelerate at the same rate relative to the earth (the bowling ball accelerates slightly slower relative to some outside point, but it accelerates the earth slightly more towards it, resulting in the same relative acceleration to the earth as the feather)

  • ur dada so buff he falls significantly faster than g
  • Calculate the force between the earth and the bowling ball. It'll be G • (m(earth) • m(bowling ball)) / (r = distance between both mass centers)²

    Simplify. You're getting g • m(bowling ball).

    Now do the same for the feather. Again, the result is g • m(feather).

    Both times you end up with an acceleration of g. If you want to put it that way: The force between the earth and the bowling ball is m(bowling ball)/m(feather) times as high as the force between the earth and the feather, but the second mass also is m(bowling ball)/m(feather) times as high, resulting in the same acceleration g.

    Higher force on same mass results in stronger acceleration. Same force on higher mass results in lower acceleration. Higher force on equally higher mass results on equally high acceleration.

    I just asked my professor this exact thing (if the ball would get to the earth sooner because it accelerates the earth towards it) like two weeks ago and my previous message + this message was his explanation.

    PS: If you're looking at this from outside, the ball travels less distance before touching the ground (since the ground is slightly nearer due to pulling the earth more towards it), but also accelerates slower while accelerating the earth faster towards it. The feather gets accelerated faster towards the earth and travels a longer distance before touching the ground but doesn't accelerate the earth as fast towards it.

    But because we're not outside, we only care about the total acceleration (of the earth towards the object and the object towards the earth), and that's g. We don't notice if (fictional numbers) the earth travels 1m and the object travels 1m or if the earth stays in place and the object travels 2m, what matters for us is how long it takes an object 2m away from the earth to be 0m away from the earth.

  • ur dada so buff he falls significantly faster than g
  • Why your spoiler is wrong:

    The gravitational force between two objects is G(m1 m2)/r²

    G = ~6.67 • 10^-11 Nm²/kg²

    m1 = Mass of the earth = ~5.972 • 10^24 kg

    m2 = Mass of the second object, I'll use M to refer to this from now on

    r = ~6378 • 10^3 m

    Fg = 6.67 • 10-11 Nm²/kg² • 5.972 • 1024 kg • M / (6378 • 10^3 m)² = ~9.81 • M N/kg = 9.81 • M m kg / s² / kg = 9.81 • M m/s² = g • M

    Since this is the acceleration that works between both masses, it already includes the mass of an iron ball having a stronger gravitational field than that of a feather.

    So yes, they are, in fact, taking the same time to fall.

  • InitialsDiceBearhttps://github.com/dicebear/dicebearhttps://creativecommons.org/publicdomain/zero/1.0/„Initials” (https://github.com/dicebear/dicebear) by „DiceBear”, licensed under „CC0 1.0” (https://creativecommons.org/publicdomain/zero/1.0/)PU
    pumpkinseedoil @mander.xyz
    Posts 0
    Comments 83