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Find the general solution of sin3x = sin2x. :karate:

Like usual I have a few questions I can't do. 1. Given that x = asin(nt+α), find v as a function of time (<--this part i can do). Find a, n and α if a>0, n>0, 0≤α<2pi and: a) the period is 6 seconds, and initially x=0 and v=5. 2. Particle moving in S.H.M. has period pi/2 seconds...

Hiya. Just lazing about doing some motion questions. Need to integrate the following: Int. 1 + logex dx Cheerios.

I'm doing motion questions and I need to express "x" in terms of "t". t = 0.5loge(2x-1) Some help?

hey guys I'm trying to figure out how to graph y = -4e-4t using a graphing program. I'm obviously doing something wrong because an error box appears. THanks

Hi guys, Atm I am a little confused with rates of change. Attached are a couple of questions (q6 and q7) which I have no idea. Ta.

Alright guys, I'm in need of a little help with this one: Integration of: sin3(2x)dx Here's what I've done: (the above integration) = Int. sin2(2x).sin(2x)dx = Int. sin2x(1-cos2(2x)) = Int. sin2x - sin2x.cos22x I've not a clue where to proceed from there. (p.s. how do you do the...

Hi I'm doing a parametrics question. I seem to be stumped by some simple algebra, so I would appreciate some help. this is a proof q - the answer is: PS = a(p2+1) I am up to this stage (don't worry the below is correct, I checked worked answers, i just don't know how to get to the finished...

"A battery charger is used to recharge 1.5V batteries through a 12V transformer. The transformer has 2400 turns in the primary coil. Assuming 100% efficiency, calculate: a) no. of turns in secondary coil (done, I got: 300) b) the output current if the input current is 10mA " Not sure with...

The following question came from Dot Point physics, but for the life of me I can't figure out how to do these types. If anyone can tell me the answers and their rationale it would be greatly appreciated.

We have to design an experiment to determine the heat of combustion of various fuels (e.g. methanol and another fuel) and carry out the experiment. I have no idea where to start. What would the experiment actually entail?

I am having trouble seeing the difference. How are they different. Anybody know?

Anyboy here know of any textbook that contains thorough worked solutions (or at least many good examples)? I am sick of trying to find where i went wrong - usually wastes my time. (Cambridge and Fitz esp). I want a book that contains challenging questions also. Thank you.