Mercury Definition and 257 Threads

I have a student who thinks he is smarter than me. When we calculate the precession the classical way we also account for the supposed oblate sun. If we model sun's oblateness by splitting the mass of the Sun into 2 masses and separate them by distance s, then the acceleration we get on point...

Hello, I have been doing extensive research into planetary positions and distances from the sun. When viewing the sky for planets it has been noticed that Mercury is in the night sky. Mercury is at 36million miles from the Sun. Earth is 93million miles from the Sun. How can the planet Mercury be...

I don't know what I did wrong for this question, but I assume something is wrong as my solution is extremely simple and this is a 20 marks question... 1. Homework Statement Refer to uploaded image. Homework Equations Pressure = h ( density in kg/m^3 ) ( gravitational acceleration) The...

Im curious what is it about space-time or Einsteins field equations which explains Mercurys precession correct while Newton's formula doesn't? So exactly what difference causes GR to explain it that Newton could not?

Lets suppose in not so far future we want to build a research base on Mercury. What would be the main hardships and benefits? For the later, it could gain lots of information about solar flares and storms, solar panels could give it more than enough energy, and if it is landed on North pole it...

The poles of Mercury are best suited for colonization due the large water ice craters there and the planet's lack of axial tilt. This keeps the temperature moderate and protects against radiation. I've been campaigning for years to have a 1-pound vat of the most resistant anaerobic extremophile...

Hi. There were theoretical (find transformations under which Maxwell's equations remain invariant) and experimental (speed of light is constant, Michelson-Morley) indications that made the development of SR inevitable. But what about GR? Was there a "need" for this theory or was Einstein just...

Homework Statement Hi everybody! I just did the photoelectric experiment this week, and I have a report to write about it. We used a mercury vapour lamp, a set of metal interference filters and a grey filter in order to find the intersection point (and therefore ##U_{g,max}## between the...

I have been studying astronomy and astrophysics for about 2 years now, though on my own time and by my self. A recent question came into my mind, Can arctic planets exist close to their star? Now, in my understanding of planetary science, in order for a planet to be cool and close to the sun, it...

Homework Statement A vertical column of mercury, of cross-sectional area A, is contained in an insulating cylinder and carries a current I0, with uniform current density. By considering the column to be a series of concentric current carrying cylin- ders, derive an expression for the...

Homework Statement Mercury is poured into a U-tube as shown in Figure a. The left arm of the tube has cross-sectional area A1 of 11.0 cm2, and the right arm has a cross-sectional area A2 of 4.60 cm2. One hundred grams of water are then poured into the right arm as shown in Figure b. The length...

Homework Statement Hi! I have a a question regarding the Atomic Spectra of Hydrogen and Mercury. My problem involves the value of m and Rydberg's constant. I used a spectrometer for this lab and calculated all the necessary angles. Homework Equations See below The Attempt at a Solution...

According to Wikipedia, Mercury is not covered by the planetary protection agreement (category 1). A number of scientific papers have stated that radiation-resistant extremophiles would likely survive on and near the water ice poles of Mercury. With no legal restriction standing in the way...

I am calculating the light intensity of Mercury. I was given the average distance from the Sun in AU's which is 0.39. Using the formula (1/(d^2)), I solved for the light intensity relative to Earth which I found to be 6.57. I need to find the light intensity in (w/(m^2))

What happens to a large amount of mercury in space (that is to say, no gravity), assume room temperature. Because the mercury is dense and agile and offers more cohesive strength, will this mercury collapse on itself?

Homework Statement vertical glass tube with height of 2H. H is 760mm. the lower half is full of an unknown gas. the upper half is full of mercury. The gas gets heated so it pushes the mercury out of the glass tube. What temperature must the gas be heated to? here is the photo if, for some...

Homework Statement We have a pipe open at both ends and having the length of 1 meter. After putting it into a tub of Mercury and thus filling it to the half, we close the upper end of it, and then remove it from the tub. What is the height of the residual column of the Mercury in the pipe...

Because mercury has a low melting point? What are the advantages of mercury in the isotope effect experiment? Can we use some other materials?

Homework Statement Homework Equations P=hρg The Attempt at a Solution The length of mercury column ... (1) on the left side (exposed to atmosphere) would be ( 760 + x/2 )mm (2) on the right side (exposed to atmosphere) would be ( 760 + (50-y)/2 )mm (3) on the left (exposed to air at...

Why is mercury obit elliptical? Is it because of the curvature of spacetime caused by the presence of sun such that the mercury moves in that orbit otherwise known as geodesics? However what about the other planets like Earth that orbits in a circular orbit? Is is just that that is their...

This question relates to building a computer model of gravity under relativity in a frame by frame type animation where the force on an orbiting object is calculated between each frame and applied to the animation. Its pretty easy to model normal planet orbits using Newtons inverse square law...

I've been reading up on mercury vapor lamps, which are often used as a light source in fluorescence microscopes. I still don't understand why it decreases the lamp's lifetime if you turn it on and switch it off without waiting 20 - 30 minutes. Is there a reason for this?

Six mercury drops of equal size given potential of +3v and two other drops are given -3v potential. If they coalesce what is final potential This question had been eating my brain i know solution if they are given same potential but what to do when they have different potential

I'm trying to understand how the neutron powder diffraction works at Oak Ridge National Lab (ORNL) and I'm wondering what the reaction is that results in neutrons being emitted from mercury after being bombarded with ~1 to 5 GeV protons. Does anyone know where I might find this information?

The space above the mercury column in a thermometer ordinarily is evacuated, but due to faulty manufacture, a particular thermometer has a pressure of 2 mmHg of air in this space when the whole thermometer is immersed in a bath at 0 degrees Celsius. Calculate the pressure of the air when the...

I recently saw a phenomenon wherein a metal droplet was stretched and stuck between two electrodes that it wet to. Upon applying electric field, the droplet split into two. ANy idea why?

I am curious if the height of the Mercury column inside a Toricellian Mercury Barometer be the same if we use a tapering / stepped (unequal inner diameter [ID]) glass tube as depicted in the image below instead of a regular constant ID one? Note: I know that the ID of a barometer tube does not...

Hi everyone, searching on the web about how the fluorescent lamps work, I cannot understand if the UV is emitted by the noble gas or the mercury. For what I understand, both of them ionize, and the UV light is emitted after the collision of the electrons with the atoms, but I would like to...

Homework Statement [/B]Homework Equations ρ=hpg The Attempt at a Solution I really don't know how to rationalise the answer to this question. I just can't find the correct answer at all. The closest answer I thought was C and that too was also wrong since the pressure of mercury on the right...

Homework Statement Homework Equations P1= Patm + ρwatervg P2= Patm + ρmer.vg The Attempt at a Solution so both sides of the tubes are open to atmosphere pressure and are in equilibrium. I can get P1 =P2 the 1 atm from each side cancels out. g (gravity) cancels out I'm left with volume (or...

We Know that in conductive Solids there are lots of free electrons available & they drift when electric field is applied. Their drift velocity is in the range of mm/sec to cm/sec. Now if we consider any conductive liquid which is flowing & we connect the electrodes in such fashion that the flow...

HI - we know that the orbit of mercury precesses (I hope I am using the right terminology here). Which basically means that the orbit seems to undergo some sort of rotation in the ecliptic plane. Does this also mean that the period of Mercury's orbit as seen from the Earth is not uniform but...

Homework Statement A tube which is open at both ends is immersed in a beaker containing mercury. The top end which comes out of the mercury level is now sealed and then the tube is raised by some height such that some part still remains inside the beaker. The mercury inside the tube rises...

2 statements from an article : "WHO standards for occupational exposure to inorganic mercury are currently 50 µg/m3 in air ... WHO's maximum acceptable daily intake (ADI) for mercury is 40 µg/day." An average person inhaling 20 m3 of the air containing 50 µg/m3 of mercury, inhales actually...

1.The problem I have been facing is understanding how a straw exactly works ?? I know the general, conventional solution given to this problem by the principle of working of a barometer, but I think it has a serious loophole. 3.They say as a vacuum space is created in the straw due to our...

Homework Statement We have a tube with the top end open and the bottom end closed. There is some oxygen gas in the tube and on top of the oxygen there is 10 cm high column of mercury. The initial temperature is 20oC. Then the tube is flipped over and heated to 40oC. The column of mercury shifts...

How does passing mercury, salt water, etc thought a copper tube create electricity? and dose it create a magnetic field?

Hey! Here's a question. This is Mercury as seen from some telescope during one of its transits The white disk in the background is the Sun. So suppose now that I am where this telescope is and start approaching Mercury. As I approach, both the Sun and Mercury would become larger from my point...

In a barometer, assuming bernoulie properties(incompressible fluid) if we replaced the mercury with alcohol and water why would the alcohol be able to be displaced further with pressure. It has a lower density that water 800kg/m^3 than water which has 1000kg/m3. What chemical properties or...

Homework Statement It is given that the period of Mercury is 87.9 days and the angular speed of Mercury is 8.27*10^-7 I am asked to find the radius of Mercury. I have no idea how to calculate the radius just the two pieces of information given. Should there also be the linear velocity of...

Thinking back to my undergraduate years in Chemistry 101, it always struck me as strange that mercury, a transition metal, was liquid at room temperature. When I asked the professor about it, he said the explanation was by no means simple and involved both the electronic configuration of mercury...

The Martians were able to see the planet Mercury transit the solar disk on Jun 3rd if they used Curiosity's telephoto Mast Cam. Can also see the sunspots. See JPL's link: http://www.jpl.nasa.gov/news/news.php?release=2014-183 Creator

hi guys, i have a very limited knowledge of physics, and have an engineering background. but i saw on a program i was watching yesterday about the solar system, one of the comments made on there was about how Newton's equation for gravity was what was used to find "neptune??" however it...

In my book it talks about a mercury manometer where one side of the U tube is open to air and the other side is connected to a system where a reaction takes place. It then derives ΔP=ρgΔh by setting the force pushing the mercury up equal to the force pushing the mercury down. The force pushing...

I have noticed that when I fill the 36 inch glass tube of my mercury barometer, that there are thin bubbles of air stuck between the mercury and the inside wall of the tube; can't seem to get rid of them. Maybe a vacuum needs to be pulled before pouring in the mercury, but that seems...

Lets say there is a gas giant similar to Jupiter orbiting a yellow star similar to our Sun. The planet and moon orbit at a distance that would resemble in between Mars and Earth. So the moon would receive 70% the sunlight that Earth receives. Around this planet exists a moon with 0.064 Earth...

Homework Statement Please refer to the image attached. Homework Equations P=hρg The Attempt at a Solution My workings: 16000=h1ρg 8000= h2ρg Since ρ and g are constant, therefore h1:h2 must be 2:1. But the answer is 18:12. Why am I wrong?

Homework Statement Hi guys, I'm new here and I hope you can help me with this question that's been puzzling me for a good week now. Mercury barometer of 1m with mercury column height of 760cm is equivalent to 1.0x10^5 Pa. School experiment to find atmospheric pressure was as follows...

Today we know that mercury is a metal even though it's a liquid, because we already know its position in periodic table, its ability to conduct electricity, but these features of mercury were not known in ancient times ( for example, in the age of great greek philosophers). Yet it was considered...

I know there there has to be a simple answer to this, but I can't understand where it's at. Here is the question. Find the apparent magnitude of the Moon [Earth's] as seen from Mercury. Assume Mercury is 0.52 AU from the Moon and that Mercury sees the Moon fully [it's a full moon]. Okay...