Who is the author of Chemistry Pathways-I think this is the first time I've heard of this chemistry textbook.Chemistry Pathways. Anyone doing Identity for their AoS?
Geoffrey Thickett, publisher is MacmillanWho is the author of Chemistry Pathways-I think this is the first time I've heard of this chemistry textbook.
Cause 12 units is too mainstream.How come you only have 11 units in your signature for your preliminary subjects?
Put them into vector components, so that you set one direction as positive, one direction as negative.Guys I need help with a physics question (relative velocity)
Two trains are passing each other. Train A is moving east at 13 m/s, train B travelling west at 28 m/s.
a) What is the velocity of train A relative to train B?
b) What is the velocity of train B relative to train A?
Sorry I just don't get it :/
Thank you so much.. you are a lifesaverPut them into vector components, so that you set one direction as positive, one direction as negative.
So a) asks us to put it into relative terms of train B. So we assign the direction of train B as positive (west). Now since train A is moving east at 13 m/s, we can say that it is travelling -13 m/s west.
To find the velocity of train A relative to B, we must find the difference in velocity. So we do:
Notice that to find the difference, you have to take away the velocity of one from the other.
Do b) and you should get this by using the same method:
Morning.Morning people
I can barely keep my eyes open
me too... im so fucking tired :/Morning people
I can barely keep my eyes open
When did you slept last night?me too... im so fucking tired :/
everyday i get about 7ish hours of sleepWhen did you slept last night?
Not yet, gonna start this weekend if I have time.Has anyone started to make some meaning full notes for their mid term exam?
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Yeah mostly on the weekends.Has anyone started to make some meaning full notes for their mid term exam?
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:O crap, that's more than mine!Yeah mostly on the weekends.
Weekend homework: 15 exercises for math , chem report, bio report, 5 bio worksheets, start English portfolio, 2 English adv analysis sons extension English research + notes
Fun
I know ughhhh half of it is due Monday:O crap, that's more than mine!