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on many of the notes on this site it says each glucose unit has "4 carbons joined in a chain" so can be the building blocks for ethene, propene, butene ... mm but when i look at the diagram for glucose i see six carbonz? anyone explain y it is four carbons?

ok all i can think of this is... the cost involved i don't know wot else to write coz im given 3-4 lines to answer :(

ok heres the next one How could you tell if your spacecraft, far from any planet or star, is standing still or travelling with a uniform velocity? What is the name given to this idea? ermm wot do i do here is this the answer : "you cannot tell because as the principle of relativity...

its a jacaranda question ~ tryin to finish the last topic blah i'm going alrite then this pops up and im like err.. wtf ?

ok i'm totally lost here how can you tell which one is correct if you don't even know where your heading for sure? :confused:

hi guys i have some holiday homework and im wondering if anyone could help me with this question "Make a list of some of the dangers of amospheric re-entry with the short explanation of each. Your list should contain at least four items." ok all i can think of is angle of re-entry - too...

hmmm on the topic of orbits can someone explain to me why geostationary orbits have a period of 24hrs MINUS 3minutes 56 seconds ?!?! i know it may sound dumb but i dont get it !

thanks guys

im havin trouble with these questions : q1 3 - 2i is one root of x2 + bx + c = 0 where b and c are real Find b and c q2 x² + 6x + k = 0 has one root @ where Im(@) = 2 If k is real find both roots of the equation and the value of k q3 1 - 2i is one root of x² -...