<p>Can any1 plz send me the questions and answers to the 2004 or 2005 AP Physics C mechanics multiple choice? I need some additionaly practice material. Thanks</p>
<p>would be awesome if you could send these to me too :)</p>
<p>should be more than enough</p>
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<p>wow thanks a lotttt</p>
<p>@mgoblue315, your a lifesaver :)</p>
<p>can someone help me with #24 on the 1984 mechanics exam plz?</p>
<p>Is it me or are some of the images in the 2004 AP just black boxes?</p>
<p>your opening the file with the wrong program, try another one</p>
<p>
</p>
<p>You’re probably over complicating it. This is a straight forward question. </p>
<p>So you know that for SHM that T = 2pi *sqrt(m/k), and you know that T, the period, is the time that it takes for the object to take 1 complete cycle (1 period of a sinusoidal wave…if ou think about it graphically). So, in this case, the block will first return to it’s original position after 1 period has passed by, so all we are trying to do is find the period.</p>
<p>T = 2pi * sqrt(0.1/40) = 2Pi * 1/20 = pi/10 </p>
<p>The answer is C</p>
<p>thanks for the explanation, i kinda figured it out tho, basically i was just thinking that its initial position is AFTER it is already hanging on the mass, which would make the time to get back to its original spot after it goes up and down only half of the period. Only 27% got that one right!</p>
<p>
^i don’t i opened in microsoft word (2007) and the same thing is happening to me? How do you fix it? </p>
<p>@salzahrah, what do you mean by opening it with a different program?</p>
<p>For the period question, I also thought that going down and back up would only be half of its period.
So the period of any mass on a spring is just from the initial position, to one end, and back to the initial position? If it went from (let’s say one on a table) the right, past the middle, to the left, and back to the initial position, would that count as two periods?</p>
<p>How would you do this problem then?</p>
<p>The equation of motion of a simple harmonic oscillator is d2x/dt2 = 9x, where x is displacement and
t is time. The period of oscillation is?</p>
<p>^I’m not sure what your question means, but that seems like just 1 period to me. Remember, since all SHO motion can be shown by a sinusoidal curve, think about what 1 period means on a sinusoidal graph, and it’ll be much easier to answer those questions. </p>
<p>For example, if an SHO was represented by f(x) = sin(x), you know the period of a sine function is 2pi. So once we release the spring from its equilibrium position (x=0), at (x=pi/2) it has its maximum acceleration in the interval (0,pi) ( because of the concavity change). At x=pi, it passes through it’s equilibrium position where it has its maximum velocity (greatest slope at that point x=pi), and at x=3pi/2, again it has its maximum acceleration in the interval (pi/2pi), and then when it passes by the pt x=2pi, it returns to it’s original position, and that is counted as 1 period.</p>
<p>You can also say for it to be 1 period, the distance traveled must be equal to 2A where A is the amplitude.</p>
<p>a period of motion is the time it takes to go from equilibrium to two different maxes and then back to equilibrium</p>
<p>Does anyone have answers for 2004??</p>
<p><a href=“http://talk.collegeconfidential.com/ap-tests-preparation/843076-answers-ap-physics-c-2004-mc.html[/url]”>http://talk.collegeconfidential.com/ap-tests-preparation/843076-answers-ap-physics-c-2004-mc.html</a></p>
<p>Post 13.</p>
<p>I am unable to view the images, because I also see them as black boxes.</p>
<p>Could any body provide AP Physics C Mechanics Multiple choice from any year plz very urgent</p>
<p>AP Physics c any MCQ anyone?</p>