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whoa mod upgrade.. when did this happen?

it isn't the main but it is a reason.

why not. The equator will always be the place to fire rockets. at the equator, the gravitational pull is less as "r" is max. and as mentioned above, this lessens the escape velocity required. and also, the spinning motion of the earth has a greater effect at the furthest distance from the axis...

true that:santa:

they look the same?? minor differences. the removed conics from 4U lol....

+1. new syllabus??

so just sketching hte locus would be fine?, or do you think i need to find it out using x and y.... its worth 2 marks... what do you think that marks are awarded for?? i got it from some 4U paper 2006

i haven't tried the not eating approach, but the " hit your head hard against a wall" method has been proving itself useful

another question.... find the locus of z if: Arg(z-i) - arg(z+1) = pi/2 is the answer a semi circle that has the points i and -1 at the ends?? (2nd quad)

wtf... so expensive isn't it the FREEdom of information?

opps, didn't see that... will remove

delta y is the change in vertical distance. at apeggee, where the vertical velocity is zero and is at the max of its motion, the projectile will be 15.9348m higher than the top of the cliff ( 65.9348m) in terms of vertical displacement. now when we are calculating the time for the projectile to...

same here

some do it so that 3U can count for 2 units

i also got 2/3

well tell your teacher that he/she is a real biatch and that they should be teaching you the stuff you need to know and that the students should not be wasting their time on this... and say it like u mean it!!! :chainsaw: :party: to find satellites, just google all LEO satellites and list...

the answer for 8 is 376684.7874km (minus the radius of the Earth). just a tip you should be remembering that a geostationary satellite has a altitude of 385 000 km so 42 296.2 km would be too small... going on to Q9 ( i don't think u need any of the data from 8) using Kepler's laws.... T=...

there are heaps of rockets and satellites , but we aren't required to know their names. Most rockets are fired from the equator. NASA fires it rockets at Miami Florida to gain a boost in velocity from the Earth's rotation as it saves fuel. With the atmospheric drag bit, all LEO (low Earth...

this one is a classic. YouTube - Superman Makes Appearance at College Lecture and another copy of the same stunt http://www.youtube.com/watch?v=rwPOn1X69nU&NR=1 and a fail http://www.youtube.com/watch?v=DQS2GBAuFkE&feature=related

when you and your friends see a polar bear fall into water on a doco and the crazy man on the TV says " lets go and find that bear". you then say that he will have no luck in finding it because it has dissolved in the polar water :P