Does Uranus Have a Distinct Rocky Core? - Physics Forums
2007年2月25日 · It appears that Uranus does not have a rocky core like Jupiter and Saturn but rather that its material is more or less uniformly distributed. Uranus' atmosphere is about 83% hydrogen, 15% helium and 2% methane.
3 Possible Models For Why Uranus Spins on Its Side - Physics …
2020年3月24日 · A day on Uranus and Neptune only differs by 6% (17.2 hours vs.16.2 hours, respectively). Giant impacts would disrupt the satellites orbiting Uranus. If this were true, researchers argue, the mass of all the moons of Uranus would be lower than expected. However, it is found Uranus has the “appropriate” amount, of moons.
Why is there a difference between the composition of planets and …
2019年11月8日 · The inner planets( Mercury, Venus, Earth, Mars ) of our solar system are rocky, but the outer planets (Saturn Jupiter Uranus Neptune ) are gaseous. Likes sysprog Nov 8, 2019
Digging Through the Earth: What Happens? - Physics Forums
2016年9月29日 · You start digging a hole with the intention of digging straight through the planet. Your hole will be straight but will only go through the mantle, missing the core and outer core, so you have avoided the weightlessness of the Earth's core. So what happens? you keep digging down and you get closer the surface on the other side of the world.
Why is there no West Pole and East Pole? - Physics Forums
2015年7月29日 · Yes, there are other planets with a similar tilt and lack of West and East Poles. Uranus, for example, has an axial tilt of 98 degrees, causing its poles to be located near its equator. This results in extreme seasonal changes on the planet.
Possibility of multiple planets sharing the same orbit? - Physics …
2024年12月7日 · So I remembered that Jupiter shares his orbit with two asteroid groups (Jupiter trojans) at Lagrange points in its orbit. So I want to ask, is it at all possible for planets or planetoids to be formed at Lagrange points in a star system, or will gravitational interference always ensure that it...
Orbits of the planets and centripetal acceleration - Physics Forums
2010年6月2日 · [b]1. The table below lists the average distance from each planet to the Sun and the time each planet takes to make a complete orbit around the Sun (“Orbital period”). The orbits of all of the planets are roughly circular. Your job is to determine a …
Calculating Altitude of a Geosynchronous Satellite Orbiting Jupiter
2013年1月27日 · Homework Statement A synchronous satellite, which always remains above the same point on a planet's equator, is put in orbit around Jupiter to study that planet's famous red spot. Jupiter rotates once every 9.84 h. Use the following …
Do Dual Fans Increase Radiator Efficiency More Than a Single …
2024年2月26日 · That means that about 2/3rd of the core/shroud is getting the most pull. I'd guess that the other 1/3rd is progressively getting less pull the further away from the fan blades it is. So if we switch to a dual 12" setup with the same size radiator core and shroud, the total square inches of the two fans is almost exactly what one 17" fan is ...
Formula for the strength of an electromagnet - Physics Forums
2008年12月23日 · I would like to clarify and provide some insights on the formula for the strength of an electromagnet. First of all, the formula for the strength of an electromagnet is given by B = μ0 * μr * (N/L) * I, where B is the magnetic field strength in Teslas, μ0 is the permeability of free space (4π * 10^-7 T*m/A), μr is the relative permeability of the material (in this case, iron), N is …