Recent content by deanchhsw

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    Understanding Magnetism: Relating Magnetic Forces to Charged Particle Beams"

    I see. So since N/L should be equal to n/v(delta t), with n being the answer to #b, doing the math n comes out to be N(v delta t)/L. I understand that now. But how, then, do you incorporate that to find the current I? OHH I solved my own question lol I = delta q/delta t, and delta q is...
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    Understanding Magnetism: Relating Magnetic Forces to Charged Particle Beams"

    My teacher recently gave me a task of relating magnetic forces to a beam of chraged particles moving in a straight line. To aid us in this, she also set up a guideline question, displayed below: The diagram below shows a beam of charged particles moving in a straight line with speed v. Each...
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    Can Vector AB Be Parallel to the Cross Product of Direction Vectors L1 and L2?

    * This post was moved from the general math section by the poster himself There are two lines: L1 : x = 1 + 2t ; y = 2 - t ; z = -1 + 3t. L2: x = 2 - 3m ; y = 2m ; z = 1 - m. The problem states to find a general point on A on L1 and a general point B on L2, and then find the vector AB...
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    Problems with parallel vectors

    I mean this Here's what I meant by prodcut of direction vectors. direction vector L1 = (2,-1,3) direction vector L2 = (-3,2,-1) Thus D.V. L1 * D.V. L2 = det( i j k ) = (-5,-7,1) .........( 2 -1 3 ) ........ ( -3 2 -1 ) forgive me for using parenthesis where abstract value sign...
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    Problems with parallel vectors

    There are two lines: L1 : x = 1 + 2t ; y = 2 - t ; z = -1 + 3t. L2: x = 2 - 3m ; y = 2m ; z = 1 - m. The problem states to find a general point on A on L1 and a general point B on L2, and then find the vector AB from those points. Hence, Vector AB = ( -3m - 2t - 1 , 2m + t - 2, -m...
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    Physical Explanation of a Pull-Back Car

    Oh. I never knew that there was an "elastic nature" for the potential energy. That's what I needed, thank you so much :)
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    Physical Explanation of a Pull-Back Car

    Hello. I have troubles understanding how the pull-back car works in a physical sense, so I decided to post a question. By "pull-back" car, I mean one of thoese Hess Cars where you pull and the spring inside it shrinks and once you release the car the spring inside gives it a thrust forward...
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    Calculating Safety of Lifting Steel Beam at 3m/s

    As a physics student, I cannot be completely sure of answering this as some of experts in this forum would, but I'll do it anyway.. Don't be too mindful of the "3m/s" as a quantity. however, be mindful that it's moving at a constant speed. That means there is NO acceleration. As Dave...
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    Conical Pendulum, Mass and Period

    To simplify the question, "All swinging objects, which differ only by their mass, show the same period." Why is this so?
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    Conical Pendulum, Mass and Period

    Hello. I am having trouble understand the varying mass's effect on the period of a conical pendulum. Well, I understand that there is no effect. However, I am having trouble verifying that in a centripetal force equation for circular motion. Most generally, conical pendulum's centripetal...
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    Gravity's effect on a cart sliding down an incline

    I just wanted to post that thank you for being patient with me. In fact, I just realized how to solve this while I was coming back to clarify more things...sigh. I know, I know, I've never been more astounded by my stupidity.. teacher looked at me looking over your things and said "he's...
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    Gravity's effect on a cart sliding down an incline

    I'm really, really sorry, I still don't understand completely... I understand that acceleration(or force, for that matter) is a vector quantity, therefore those measurements can combine to do trig, etc... Force equals mass x acceleration, therefore the component of the weight going down...
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    Gravity's effect on a cart sliding down an incline

    I suppose it'd work this way, but the weight of the car cannot be measured; Although the answer is slightly ambiguous to me(my fault), at least I have a glimpse of how that'd work- the only problem is, we were not allowed to measure the mass of the cart, so the weight idea is gone. Only...
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    Gravity's effect on a cart sliding down an incline

    Hello, I've just joined this forum in hopes of finding some help to my physics problems. I usually can find out what to do by myself, but this problem seems to be requiring some advanced concepts...or it maybe is so that I'm just not using my noodle. A car is sliding down an inclined plane...
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