Search results

Thats a bit better, but I remember that I would devote all my study periods plus 1 or 2 hours a night just completing 4U homework, and then studying on top of that. If you're having extra periods for 4U, you might struggle to keep up with the content.

89

But at the point where it hits the wall, the projectile has vertical velocity from the initial projection. Given that it hits the building at the same height that it is fired from, it has the same magnitude of velocity as it does initially at the point where it hits the building, hence u=-24.43.

It's there, I just skipped a couple steps. In the first part, I just divided everything by t, giving 0=24.43-4.9t In the second part, t=10 and u=-24.43, hence ut equaling -244.3.

Yeah you round to the least accurate measurement, which in this case is 2 sig figs.

Hmm. This question is pretty ambiguous, but here's how I would go about it: \text{a) }92.5km/hr=25.69ms^{-1} s_{y}=ut+\frac{1}{2}at^{2} \text{s=0, u=25.69sin72, a=-9.8} 0=24.43-4.9t t=4.99s \text{Overall flight time is 14.99s} \text{Assuming that when the projectile hits the building, it...

I hand write mine. Much easier for diagrams, plus I feel that I take it in more. And I don't see the point of writing more than one set of notes, or using someone else's notes. Your notes should just be something you can skim over to remember the content that you put in your own words.

That's probably the worst thing you can do. If you just assume you're answering everything correctly, it defeating the purpose of doing past papers, which is to improve your exam technique. If you just assume you answered everything correctly, you won't see anything you need to improve on. And...

But they usually give preference to people that actually show their face when applying. Applying online means that the store can't get any indication as to whether you will be a hard working employee, or a dropkick who doesn't even bother to show up half the time.

Try a different sleeping pattern. Go to sleep when you get home and wake up around 6 or 7, then try and study. This worked well for me, because I found that I studied best between like 8 at night till 1 or 2 in the morning, and sleeping when I got home from school meant I was still getting...

You're very unlikely to get a job by just sending in online applications. Handing in your resume in person is more personal, and the store might be more likely to hire you if you look smart/presentable.

97

For part d), they touch when they are equal to each other, so replace y with mx-6, so the quadratic becomes: x^{2}-x(2+m)+9=0 For tangency, the line can only touch once, ie. One real root, so you let the discriminant equal 0 and solve for m.

Original Poster. But for your question, if you get a band 5 it shouldn't hurt your ATAR, and it isn't that hard to achieve. I didn't even read some of my texts and I'm still expecting a high band 4. I did do a lot of practice essays though, which is the key to good results in English.

They are almost guaranteed an E1, so it's extremely unfair on your schools part to let them take Ext. 1 because they will bring the class's marks down. Year 10 gives a good indication of natural mathematical ability, because nobody studies, so all test results are all based on natural ability. A...

i)\text{Vertical Velocity: }v_{y}=u+at \text{u=0, a=9.8 down, t=15} v_{y}=147ms^{-1} tan15=\frac{147}{v_{x}} \text{Since fired horizontally, initial velocity=horizontal velocity, therefore initial velocity=}548.6ms^{-1} ii)\text{Final horizontal velocity = Initial horizontal velocity...

75.

I don't think 5.2 kids have a chance either tbh. My school only lets the very top of 5.3 do Ext. 1, and a lot of them generally drop out, so if the top maths kids in year 10 find ext. 1 difficult, I don't see how anyone from 5.1 or 5.2 could do well enough to make it worthwhile.

You have a chance of making it in, but I estimate around 88.

Sig figs always fucked me over haha