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English Standard: 3/75 Mathematics 2U: 4/17 Physics: 2/10 Modern History: 2/11 Industrial Technology (Multimedia): 1/33 SOR I: 12/66 School Rank: 150-200 Will this get me at least 91?

This is seriously one of the things I'm just not really understanding. 1. People suggest that there was no change in interference patterns - so was there an interference pattern to begin with? 2. I thought interference patterns only occurred when waves became out of phase. There was no...

Yeah I thought so, since g changes with height. Which equation did you use?

I just used Work = Fs = mgh not sure if it's the right thing to use though...

How'd you get that? I got 1.57*10^11 J.

Hey, I'm interested in the Physics notes. Email: sprytex@gmail.com Thanks :D

Thank you. I see what I was doing wrong now...haha.

Thank you :)

Yeah, it is lol. Also, I get f''(1) = 184, not 196 like the textbook says. (with the ^7, not ^2)

f''(1) = 196 was in the back of the textbook.. edit: wow i meant ^7, not ^2. sorry

Find f''(1) if f(t) = t(2t - 1)^7 Can anyone help with this? Answer: f''(1) = 196. Thanks :D