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so, I shouldn't examine it based on what it looks like? I should just name it to confirm if it would have the same name? Also, so any other atom can also occupy the end positions? Not just hydrogen?

For example, 1-bromohexane, would I just count how many times the bromine can be placed on one side (in this case, this gives us 6) and not count the other side as you could just rotate it? so the isomers is 6? Or is it just 3 because you can flip it? Also, could the bromine atom be on either...

that makes a lot of sense. But how can I eliminate the double counting? What do I subtract with?

thanks, how come my way did not work? where I did 4C1 * 3C1 ...

could we find a possible value for 'u' though? like F max = umg umg >= mv^2 /r u >= v^2 / gr

so mv^2 /r is still the max? or is just the required? does this show that even if you travel around a corner with like 1000N, increasing your speed by like 0.001 m/s wouldn't cause u to swerve away?

so F = uN is still correct? what do you mean by maximum friction force isn't mv^2 /r already the max? im confused

why isnt it uN? btw that was hilarious

probably not. so what would be the working out for it?

a car of mass 2 tonnes is rounding curve of radius 840m on level track at 90km/hr show that force of friction between wheels and ground is 1488N isn't F = uN? u = friction coefficient.

the answer is 98. I did this by cases which was easier. like i did total - [0 orange, 4 banana, 0 apple + ... ] But why my way not work? i onyl choose 1 banana , ... , 1 apple and i did not arrange anything

there are 4 oranges, 3 bananas and 2 apples, what is the amount of ways to choose at least one fruit of each if you pick five in total? someone pls explain why it is not 4C1 multiplied by 3C1 multiplied by 2C1 multiplied by 6C2 ? because pick 1 orange, 1 banana, 1 apple and pick everything else...

what bonus points scheme should I know about to apply soon? My school is EAS disadvantaged and we get 5 bonus points? But do I apply for this or is it automatic How about the bonus points for UNSW for band 6s etc?

how would we calculate how many "HSC" marks people differ by internally using weightings? If for example, I got 31.5/35 for a 20% weighting test, would I divided 31.5 by 35 and then multiply by 20? And I will then be able to cmopare how far ahead rank 3 is from my rank? Thanks