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yeh i no.. but its a multiple choice question and there isnt 8m/s to choose from... must be error in question then..

o right.. that made it a bit more clear... what about question 3 , 4?

1)First.. geostationary satallite has an altitude of 36000Km and has a period of 24 hours yes?.. so when i used this formula [r ^3]/[T^2] = GM/[4pi^2] ... i subbed r = 36000000m .. and got T = 67841.4 s .. which isnt 24 hours.. so whys that?? 2) A geostationary satellite is placed at a...

hmm...yeh, if i can cope with it but in the end comming like 30 sumthing out of 50.. is it still worth spending time on?

u see for this one, u can just as easily argue the opposite.. ( but u'll get 0 marks) .. if the opposite is incorrect, why bother put it in textbooks.. wth.. like i said, i do find economics easy if i'd spend time on it.. and can potentially boost my rank into 20s if i do well in trials...

V^2 = U^2 +2a delta Y 0 = U^2 -2x1.6x20 U = 8m/s what wrong with this working out?? they dun have this answer to choose from

During a visit to the moon, a person throws a rock vertically and it reaches a height of 20m. Accerleration due to gravity on the moon is 1.6.. what is the speed at which it was thrown a)25.3m/s b)62.6m/s c)640m/s d)3920m/s

What are spectural lines??? i don't quite understand

During a visit to the moon, an astronaut throws a rock vertically and it reaches a height of 20m. Acceleration due to gravity on moon is 1.6m/s/s. What is the speed at which it was thrown on the moon?

im doing 12 units atm and i think i've done pretty badly in 2 of my latter economics assessment .. i aced the first one but the weightings for that one was quite low.. then i got like 60 % in my second one and got 35/48 for third one.. i think my rank is like 40/50.. knowing that my...

yeh.. its pretty hard.. answer says velocity should be 25 m/s and angle shuld be about 37 degrees...

its un-doable

tried it... didnt work out...........

24) Find the speed and direction of a particle which, when projected from a point 15 m above the horizontal ground, just clears the top wall 26.25 m high and 30 m away.

do we need to fill in the interest form as well as the application form?

so Einstein was a pacifist, why did he urge US president to build the atmoic bomb to destroy hiroshima??

right okay, theres the formula which states 0 wavelength has infinite intensity.. is it possible to explain in words why this would happen? When they proved the R-J law was wrong, how did planck's quantum theory explained it? (without using his crazy equation)

this is so gey.. why would you write an essay on a physics topic.. clearly, your schools gey and think they're so good.. no offence..

well, i hate it

i hate english, don't do it