big314mp

You have no proof, so basically you are just making stuff up. Hence, fairy tales. I'm not even going to try and make heads or tails of your "density order" bit. Suffice it to say that it appears to be handwaving. Your ice example is flawed as ice is the exception to the rule. Furthermore, mass does not just spontaneously decay. We'd have observed it by now if it was that common (I'm excluding radioactive compounds for clarity here). Signing off for the afternoon. Perhaps someone else will take over

We'll discuss this when the theorists work out what gravity is a little better. As for now, gravity is an attractive force only. Until you present some experimental evidence (the aforementioned levitating rock would be a good one) to substantiate your claim, you are just making up fairy tales. Explain how iron and silicon compounds will decay into hydrogen and helium. Furthermore, explain how cooling a solid turns it into a gas. ...and where exactly does all of that stuff come from? Where does the water on mercury come from?

Google is turning up a bunch of definitions, all saying a sucrate is a compound of sugar...never thought google could be that useless

I'll throw in a few more points, even though Klaynos has this quite well covered Traveler, please explain how a large blob of matter will spontaneously get up and (against gravity) decide to leave the sun. On earth we don't see rocks mysteriously begin to levitate and fly into space of their own accord. Please explain why the equivalent would happen on the sun. As to the ice giants bit, I think you are referring to the gas giants. If so, this is relatively simply explained by the fact that dense rocky material will "sink" through the protoplanetary disc towards to the sun, leaving gas for the outer planets and rock for the inner planets. To suggest what you are suggesting, please explain why all of the planets aren't made of the exact same thing. If the sun spat them all up, please explain why it originally only spat up gas, and is now spitting up rocks.

As in permanently separated shoulders? Or just for the time being?

This surprises me. I was under the impression that sugar wasn't noticeably acidic in water. I can't find any information on this, could you point me towards some?

But where's the fun in that? The gun could at least set off the broken gas line, blowing up the lab, thereby spraying the people he was pissed off at with the cyanide he had originally been intending to kill himself with.

I don't think anything really happens. Apparently the closest I could find was lye, sugar, and KMnO4 which forms a solution that slowly changes in color. Concentrated sulfuric acid and sugar is a good one.

The sun doesn't even have the proper elemental composition to "spit out" planets.

The top part shows a no friction example, the bottom shows a with friction example. The black arrow is calculated by using F=ma. The total force applied is the black arrow plus the blue arrow. The red arrow is the force of friction. The blue arrow is the same magnitude as the red arrow. So to calculate the length of the blue arrow (and therefore the red arrow), you need to subtract the black arrow from the total force applied.

The angle of elevation will always be between the x-axis and the hypotenuse. It's not "final" force and "initial" force. If the skier were accelerating on a frictionless surface, you could calculate the force acting on him based on his mass and acceleration. To achieve a given acceleration, will require a given force. Now transfer that over to a surface with friction. All of the forces are the same, except there is one new one. This is the force of friction. The frictional force will act in the opposite direction that the skier is going; in other words, it will act to slow him down. This also means that it is acting in an opposite direction from the force accelerating the skier. To achieve the same acceleration, we now need to add additional acceleration force to counteract the frictional force holding the skier back. The amount of force we need to add (remember we are adding to the acceleration force calculated on a frictionless surface) is the same amount as the frictional force - in other words, enough force to cancel out the frictional force. So the sum of the forces accelerating the skier on a friction surface will be (force of acceleration) plus (force needed to counter friction). So if you know the total force applied, you need only subtract out the force of acceleration (on a frictionless surface) to calculate the frictional force.

I'm thinking you need to watch your body temperature a little better. High fevers and dehydration can lead to funny mental states, including hallucinations. Drink more water, and get out from under that blanket when you have a fever. If your temperature is getting that high during a fever, you really need to see a doctor and get that fever down.

Your calculation of acceleration is wrong. Correct equation, wrong (delta)X. If you imagine the hill, it is a right triangle. The "up and down" leg of the triangle is 50m. Your (delta)X for the calculation needs to be the hypotenuse of this triangle. Once you know how much force is actually accelerating the skier, then you can figure out how much force is lost to friction. Remember that the force applied to the skier (what is calculated in the first paragraph of my last post) is equal to the force of friction plus the force of acceleration. So by calculating the force of acceleration and the applied force, you can calculate the force of friction.

Lepton has to do with how many posts you have. The little green cylinder tells how many reputation points (given by clicking the scales at the corner of someone's post) you have received. The little circle tells whether the poster is online or not. And welcome to SFN!

My dog used to come and listen to my brother and I practice piano. Other than that, he didn't really even seem to notice when we played music (on the stereo). Dogs hear in higher frequencies than humans, so perhaps test music should be shifted up a few octave to suit them better?

What you will need to do is find the total force accelerating Kieran (who comes up with these names anyways?) down the hill. To do this, you will add the force of the skies, plus the Fxg force you calculated. That gives you the force applied to kieran. Now, you know how long the slope is (well...you'll have to calculate it), so you know the total distance that kieran traveled. You know his final speed (40 m/s) and his initial speed (0 m/s). You can now calculate his acceleration down the slope. You know kieran's mass, so using your calculated acceleration, you can figure out the force on kieran that is actually doing the acceleration. Hopefully you can get it from there.

Tetracycline binds to ribosomes in cells, preventing them from making proteins. If the cell can't make proteins, it dies.

Frosch makes a good point. Carbon electrodes can easily be found by taking apart dry cell batteries (usually lantern size). I've found that these electrodes can erode when running large current through them, so keep that in mind also.

I would've thought that the object would get warmer rather than heavier. Is this just a theoretical discussion, or does this sort of thing actually happen?

Depends on how big you make it Asphyxiation via gas (either CH4 or N2) in an enclosed lab perhaps?

whoops

I've heard this also, but for my neck.

A black solid from copper is usually copper oxide. If there was a foamy looking blue stuff lying on the bottom also, that is a dead give away for copper oxide. The blue stuff is copper hydroxide, and when it is heated, it forms black copper oxide. If you are making hydrogen and oxygen, you can get better result by using magnesium sulphate, aka Epsom salt.

Usually you can just buy KNO3 on its own as a fertilizer. Small bags are often sold as tree stump remover.

The question is...will the energy they produce be enough to pay for the cost of installing the PV cell. I'm thinking windy areas are generally not the sunniest places, so the answer to the above question would probably be no.