JoeMK

i'll give it to u at school

co-sign!! LOL

anyone has an idea about the Mass vs distance in circular motion graph?

i really don't know how to connect red shifts and cosmicbackradiation with any predictions of a static universe

Thanks buddy It makes better sense now

It seems illogical that a heavier object needs the same velocity to travel in orbit as a lighter object. I know that gravity acts on all bodies equally, but i'm really having troubles imagining it. using the formula: m2*(v^2)/r =G*m1*m2 / (r^2) assuming m2 is the mass of the satellite, it cancels out... are u sure that means that the mass of the body doesn't affect it's velocity

Are u sure, cuz i don't believe that's right

We gotta do sum calculations, but i don't think they gotta be that complex. Just a good theory behind a logical explanation

I know that the stars release large amounts of heat as they burn, but the temperature of the universe does not increase, as it is constantly expanding. If the universe was static, then it'll obviously be much hotter, and most probably we wouldn't be alive. I need help with the prediction, and as well as to connecting it with the idea of "Red Shifts" and "Cosmic Background Radiation" Thanks

Imagine that the universe is static and not expanding. Predict the observations that would be made in regards to: a. Red shifts in glaxy spectra b. The temperture of cosmic backgorund radiation

I have attempted to research this, with no luck i need ideas to get me started

The absorption and re-radiation from solid and liquid objects We have to design our own comparison experiment, to find out how different substances absorb or reradiate heat(or light). We do not have to do the experiement. Suggested equipement: A heat or light source, a bar heater or an overhead projector, a heat detector, your choice of solids and liquids. Any ideas, just need ideas

Mass vs distance is kinda impossibble, cuz u cannot show any time or distance progression. so i agree on the graph I'm a bit unsure about the force vs acceleration graph however.

Hey, does anybody know what a Force vs Acceleration graph for an object in circular motion looks like? I've been trying ot figure it out, but couldn't come up with anything and also Mass vs Distance for forces due to gravitation The Period of orbit of a satellite and its Altitude thanks in advance, much apreciated

u serious? How can u i already handed my assignment up..i used electrolysis

Thanks Guys, much apreciated

Is there a reason as to why an Alloy can have such a different melting point to its composing metals?

this is for high school chemistry, we have just finished studying the moles would u think electrolysis would be a good idea, as chlorides are soluble in water?

Ok, we got this other question Use the following information to design the experiment and so complete the questions applicable to it a. u are given a substance that you know is a soluble chloride (to be refered to as X.Cl.) b. X is a group 1 cation Perform a first hand investigation to measure and identify the mass ratios of metal to non metals in a compund and calculate the empirical formula Anyone got an idea to a procedure? ... i hope i ain't asking to much, thanks

Thanks guys, i think the slow heating and the powder will help me get a better MP thanks there's still one question i need help in...i'll make a new thread

i wish we had infrared thermometers. but we're stuck with the standard themometers (300*c). Is there somekind of special technique we can use?The solder is in an evaporating basin, we're using a bunsen burner in a smoke cupboard. I know the melting point should be around 180, but we can't get that exact point when it melts, and there's gotta be some kind of technique to use.

hey, just need some help here this for some school assignment. We made our own Solder by melting tin and lead in the correct ratio. Now we need to remelt the Solder to find its melting point. Look i now this might sound stupid, but what is the most accurate method of findng the melting point. this is very impotant, there are 2 questions about it that pop-up in this in this assignment: 1> Suggest a suitable technique and sound experimental practise that should be used so the reasonably low melting point can be accurately measured and confirmed 2> What changes did you make to the procedure in this experiment in an attempt to gain more accurate results. (It is very unlikely but possible that you used the correct procedure for finding the melting point of Solder) Ok i know these might sound like very simple questions, but that teacher wants us to synthesise on a very high level of thinking, so the answerers ain't quite as obvious as they may seem ...any help srongly apreciated