<p>I put 2 x 4 bigger cross section = more resistance…also think about it in terms of ohm’s law. R = V/I greater volume = more resistance. Also was the O2 formed or broken down?</p>
<p>@just4notherguy, V in the equation R=V/I stands for voltage, not volume. and it was O2 formed, because the equation was H2O2->H2O+O2 or something like that, so the rate at which O2 forms determines the extent of the reaction</p>
<p>Sillyup, headed2great, and just4notherguy – it was 1 by 4 without a doubt. Smallest cross section + greatest length = most resistance, as indicated by the first chart. The shaded circle where it said “2” wasn’t the diameter – it was the cross section.</p>
<p>Also, I think I got .000.</p>
<p>And O2 was formed.</p>
<p>The voltage question was .000 because the switch was still open.</p>
<p>it had to be 1X4… its supported in the charts. Also the equation for resistance is R= PL/A where l is the length and a is cross sectional area. p stands for restivity, which depends on the material of the wire. that being said, the smallest area (would be the one with the smallest diameter) and the longest length when divided would provide for the greatest resistance.</p>
<p>Who else is expecting a harsh curve for this test?</p>
<p>i cant remember the exact question but did anyone get an answer for the first passage that no a mass of 15 kg would be too big or something like that</p>
<p>I dont know which one I put.</p>
<p>Was it the chimney question? Yeah I got that no there wouldn’t be 15g of water vapor.</p>
<p>Can somebody tell me what the all answer choices for the stimulated rain fall question?</p>
<p>Same here^</p>
<p>The stimulate rainfall had two sets of answers:
One was the P compound and whether the rainfall increased or decreased it (that was a and b
The second was the density of the ------ cloud (don’t remember what kind of cloud) and whether it increased or decreased. (C and d)</p>
<p>I at first put a and then i changed it to D… Now reflecting on it, it was definitely A (slap myself in the face)</p>
<p>Wait so the answer to the rainfall one was that it increased the P compound?</p>
<p>that’s what I’m thinking because it makes no sense rainfall would increase density because rain has more volume than mass. Also I think the rainfall is what contains the P compounds that the fertilizers break down</p>
<p>I’m surprised no one is talking about the phosphorus passage more… I found that the hardest and screwed me over… Just for the sake of credibility, I got a 36 on the June 2013 science.</p>
<p>Anybody care to explain their answer for #40? I don’t remember the question but my answer was students 1, 2, and 3.</p>
<p>What letter choice was students 1, 2, 3? I just remember my answer was H</p>
<p>I put H only because I ran out of time, if that helps, lol.</p>
<p>And kudos to you, jy2013. I thought the June ACT Science was the toughest I’ve ever taken. o.O</p>
<p>Which passage had 40? Sorry, I went a little out of order so the numbers are wasted on me.</p>
<p>For 40 I said study 1 only because as the length increased the cross sectional area decreased at a ratio that would keep the mass constant. If you multiplied then you always got 5. For example I think at first it was 1 for the cross section and 5 for length. And the last one was 0.25 for cross section and 20 for length. I thought 2 and 3 were not constant masses because as either cross section or length increased, the other remained constant, meaning the mass would not be constant.</p>