<p>Yeah Copernicus’s big thing was his heliocentric model of the universe, which he used implications of light waves to arrive at.
I’m sure Newton did plenty of stuff with light, but the question was “which of the following is not commonly associated with investigating a property of sound or light waves”
When you think of Newton… I don’t think anyone associates him with anything other than his three laws and calculus…</p>
<p>Im pretty sure copernicus’s heliocentric theory was largely speculation, guesswork, and based on pretty basic physics. Most of it was false. Pretty sure wave theory was not even around during copernicus’s time but I could be wrong</p>
<p>Predicted raw on this test?</p>
<p>@Alpha2014: When the elevator cables break, it is in freefall. And you, who are in the elevator will be in freefall as well. Things move at the same acceleration in freefall. So that means that the weight will be 0.</p>
<p>prob 58-60 will still make 800. It was prob slightly harder than average.</p>
<p>Hey everyone, for the one with double slit, which one did you guys pick? was it different color but same intensity? Like choice B?</p>
<p>@jansatomg: That is what I put.</p>
<p>@APushed96 but some said it should be “still bright” one, I don’t even know what’s that mean tho…</p>
<p>What was the answer for the capacitor question? 12 V?</p>
<p>@Miami well newton did write Opticks… which is considerably more well known than how Copernicus used light to arrive at his heliocentric theory</p>
<p>When it has been on for a long time the potential difference is zero</p>
<p>Yeah, after a long time the capacitor will take up all the voltage so it was whatever the voltage of the battery was</p>
<p>and the weight measured by the scale on the elevator is always the normal force</p>
<p>Wait for the capacitor question what’s the choice? I’m afraid I marked the wrong one…</p>
<p>The potential difference across the capacitor was zero, I’m as close to certain as possible, I think it was A but not sure</p>
<p>saminator910, actually in an RC circuit as a capacitor charges up, it takes up more and more voltage as it approaches the emf of the battery. Hence the resistor approaches 0 V and the current approaches 0 A. The potential of the capacitor is thus the emf of the battery.</p>
<p>voltage of the capacitor as a function of time: V(t)=Emf(1-e^(-t/(RC)))</p>
<p>^LANGWANG37… So it should be B right? The voltage of the battery… But I’m not sure if that’s the choice… I hope that’s not 1.5v… I meant to pick the battery emf</p>
<p>im pretty sure it was a choice but i dont remember the letter</p>
<p>@LANGWANG37
haha, yeah you’re right, its 12v or whatever the battery was. I just found about 5 sources stating the same thing, classic fact checking mistake. You really think the curve will be that good?</p>
<p>Miami24, Newton actually did a lot related to light. He’s the one that discoverd refraction through prism and dispersion of light. So 100% sure it wasn’t Newton. I wrote Copernicus BTW…</p>