Recent content by Raven1972

Thanks very much! That was exactly what I was looking for :smile:

1. An airtight glass container contains a bowl of water. The temperature of the water is measured. If the air is extracted out of the container what happens to the water? 2. A) The water starts boiling and the temperature increases B) The water starts boiling and the temperature...

In this case I believe it supposed to be water Thanks for the answer. It has confirmed my own conclusions...

I've found out by a process of deduction that the answer is supposed to be 2.5 gcm3. Is this wrong?

1. A Cube of lengths 5cm each. The cube weighs .54kg. What is its specific weight? 2. Answers: A)6 g cm3 B)3 g cm3 C) 2.5 g cm3 D) 2 g cm3 3. 5x5x5 = 125cm3 540g/125= 4.32 g cm3 which is none of the above. Could someone verify that I'm correct before I make an idiot of myself when...

I stand corrected...thanks for the info though, seems I have my answer now at least...

In reply to CHAR LIMIT: Actualy I'm glad you pulled me up on that as when I researched it I found I was indeed wrong: "African Americans made up 41% of death row inmates while making up only 12% of the general population. (They have made up 34% of those actually executed since 1976.)[84]...

So if Kerosene is a compound of many different substances...would it not be possible that as these melt at differing temperatures it could cause the ball to rise and float..like wax on liquid wax?

There are a number of issues at stake here to my mind: 1) Do you want a prison system that tries to treat or punish (and then forget about) 2) Societal values have a huge part to play. For the example of Finland you could say that they have a different social structure than the US. The US system...

It could just be some med students having a laugh and preparing for exams ;-)

However If you put a ball of most substances into a liquid form of those substances they would probably sink and absorb latent heat from the liquid until they melt. The only reason that it would rise and hover or float would be if it had air trapped in it when the ball was made which I presume...

I think you're right with the assumption that floating and hovering are spurious answers. But I haven't been able to find anywhere that mentions whether Kerosene acts like conventional liquids or other. As I said before my assumption is that as it freezes it would contract and become more dense...

There is an old joke that says: NASA spent 50 million Dollars trying to develop an ink pen that worked in Zero gravity for use by astronauts. After many years of testing and some remarkable advances they finally had fulfilled their objective and created a pen that works in space... The Russians...

I ran into this question as well and could not find any definitive answer. It obviously has to do with densities. How dense is frozen kerosene compared to liquid kerosene (810 kg/m3)? Now with water (atypical) frozen water is less dense than liquid water thence it floats however many...