New answers tagged

1

I don't want to prove you that mass generates gravity. As ja72 already said there are hundreds of years of experience on that. Instead I just want to show you how weak and refutable are your arguments. My opinion is that it is the rotation that causes gravity, when we see a whirlpool in water it takes anything that comes near to it in to the center ...


0

The point is if all effect was taken into account. Math would be summed up that effect of more mass under your feet still less than effect of distance from the center of mass Another view is. At equator there are bulge near you. But from all other side of earth the bulge is far from you. Compare to the pole that all bulge is equally far from you, that ...


1

At the equator the effect on the local value of $g$ due to the rotation of the Earth and the non-spherical shape is only a few parts in a thousand. So even planting a tree at the top of a high mountain at the Equator probably will not have much of an effect on its ultimate height. I found this Scientific American article interesting although it did not ...


0

Let's say the roundabout is spinning at a constant angular velocity $\omega$. An object remaining at a particular point on the roundabout a distance $r$ away from the centre of the roundabout will experience a centripetal acceleration of $\omega^2 r$, which means the required centripetal force to enable this acceleration is $m\omega^2 r$. Since $\omega$ is ...


2

The rotation will not necessarily be parallel to the ground. The general motion will be a combination of rotation in a horizontal plane (the conical pendulum) and oscillation in a vertical plane (the simple pendulum). If the support (pivot) is a fixed point, the motion you get depends on the starting conditions. If you launch the mass horizontally at the ...


0

It is acceleration, change in direction in this case, which makes the difference as does the fact that graviton all attraction is a non-contact force. In space away from any large mass going at 1000m/hr in a straight line does not require a force to be acting on you. When you go around a corner it is a localised contact force that provides your centripetal ...


1

The 'swinging in a circle' creates a centripetal force that accelerates all water away from the center of the circle, with the force increasing with the distance from the center. The result will be that the water will orient so it is maximally distant from the center of the rotation. Hindered by the bucket from simply flying away, the resulting surface will ...



Top 50 recent answers are included