Recent content by RyanJF

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    Help with one 2-D kinematics problem? Answer is off by 2

    I don't know whether or not my answer is still incorrect, but I've realized that results presented in my book do not match up with results presented by my calculator - I was working through an example problem, and I'm quite sure that the work done in the book was not right... =\ Or maybe my...
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    Help with one 2-D kinematics problem? Answer is off by 2

    Homework Statement "A motorcycle daredevil is attempting to jump across as many buses as possible. The takeoff ramp makes an angle of 18 degrees above the horizontal, and the landing ramp is identical to the takeoff ramp. The buses are parked side-by-side, and each bus is 2.74 m wide. The...
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    My teacher never went over this in class

    Hm. That definitely makes more sense. I thought that the answer of .1999m seemed rather large for a television tube, although I'm still feeling stupid for not getting that answer right off the bat. As I said, maybe considering a physics major is a bad idea, at this point in time. That...
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    My teacher never went over this in class

    T = sqrt(2x/Ag) = .202 seconds I checked it with another equation for acceleration, and it's right. We went over it just a few minutes ago, and I did all of the work correctly. I won't say that I'm sure beyond a doubt, but what do you think that it should be?
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    My teacher never went over this in class

    Somewhere along the way, I think that I forgot that an object dropped vertically will travel the same distance in the Y-component as an object thrown vertically. It'd be nice if somebody can check my answer, though. I caught that one on my own, but I still have to thank Zgozvrm for making me...
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    My teacher never went over this in class

    Gah, I feel like such an idiot - I was about to post that I already solved for T, getting an answer of 2.02 seconds. Then I realized that my answer would be in meters, but I used the centimeter value of X to calculate T. I suppose that my "T" would then be .202 seconds, not 2.02. What equation...
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    My teacher never went over this in class

    Homework Statement "A beam of electrons in a television tube moves horizontally with a velocity of 1.00 x 10^7 m/s. How far will the electrons drop as they travel a horizontal distance of 20.0cm?" Vx (final velocity) = 1.00 x 10^7 Vox (initial velocity) = 1.00 x 10^7 Ag = 9.8 Xy...
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    How Far Does a Rock Travel Horizontally When Thrown from a Roof?

    Thanks, Collinsmark! Normally I would found the alt codes to insert the proper subscripts, but I made this thread at something like twelve in the morning, so I was in somewhat of a rushing, hoping both to have an answer in the morning and to get to sleep. I understand now how to work the...
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    How Far Does a Rock Travel Horizontally When Thrown from a Roof?

    Homework Statement "A rock is thrown horizontally at 25 m/s from a 15-m roof. How far does the rock travel away from the building before hitting the ground?" In the X-component: Xx = ? Vox = 25 m/s T = ? Vx = 0 In the Y-component: Xy = 15m Ag = 9.8 T = ? Vy = 0...
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    Majoring in Physics w/ Limited Math Background: Can I Succeed?

    Oh, you know. I hate to stereotype, but the image that springs to mind is that of an the Indian kid with glasses, doing complex calculations in his head and figuring out the answers to problems before I can even enter them on my calculator. Not like we have anybody like that in my school, but...
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    Majoring in Physics w/ Limited Math Background: Can I Succeed?

    Do you then think that it would be possible for me to get a physics degree, so long as I work through all of the math classes? Like I said, the concepts aren't that hard for me to grasp, and I probably learn faster than most people. I just have this idea of all physics majors being super math...
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    Kinematics in Two-Dimensions - Explanation?

    I thought I already explained that that wasn't working... And my class was never given the "three equations of motion". =\
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    Majoring in Physics w/ Limited Math Background: Can I Succeed?

    I'm likely going to be a freshman at Michigan State University this summer, and I have virtually no idea what I'd like to major in. I do plan on attending, or attempting to attend medical school after my undergraduate studies have run their course, but I'm not sure what I'd like to get my...
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    Kinematics in Two-Dimensions - Explanation?

    Homework Statement "A rock climber throws a small first aid kid to another climber who is higher up the mountain. The initial velocity of the kit is 11 m/s at an angle of 65 degrees above the horizontal. At the instant when the kit is caught, it is traveling horizontally, so its vertical...
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    Simple acceleration problems - requesting a check

    Eh, I think the answer to problem three is 17.5 meters. All I had to do was take another of the equations and solve for [i]T[i], which is what I originally thought. Answer makes sense. I need to stop being lazy.
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