Recent content by RUphysics3

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    I Equation of continuity - what if more openings are added?

    okay, so A2 , if there are 20 openings, is the area of ALL 20 openings, while v2 is the speed of the liquid out of one of the openings, which is uniform through all twenty of them as they are equal areas?
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    I Equation of continuity - what if more openings are added?

    why did they put a twenty at the bottom here, http://www.physics.rutgers.edu/ugrad/124/Resources/124s16h2-solutions.pdf number 8
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    I Equation of continuity - what if more openings are added?

    The equation states that A1V1=A2V2. What about in a situation like a showerhead, where it's one long pipe/tube, then opens up to say, 20 holes. Is it now A1V1=A2V2/20 ? why/why not?
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    Doppler effect and signs of the equation

    Homework Statement A motor scooter moving at 10 m/s approaches and passes a police car moving at 50 m/s in the opposite direction. The frequency of the siren on the police car is 700 hz when the car stands still. the difference in frequency heard by the driver of the scooter between when the...
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    Destructive vs Constructive interference

    Homework Statement Two loudspeakers, A and B are driven by the same amplifier and emit sinusoidal waves in phase. The frequency of the waves emitted by each speaker is 694 hz. You are standing between the speakers, along the line connecting them and are at a point of constructive interference...
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    Standing Wave Nodes and Interference on a Stretched String

    Homework Statement Two sinusodial waves, each of wavelength 5m and amplitude 10cm, travel in opposite directions on a 20m streched string which is clamped at each end. Excluding the nodes at the ends , how many nodes appear in the resulting standing wave? Homework EquationsThe Attempt at a...
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    What force am i overcoming when i move an object? break it?

    The force acting on the table is me. I believe that if I overcome the weight of the table with my force it will move..Maybe if I overcome the forces holding together the table it will break. But at that point, It's still exerting a force equal and opposite on me?
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    I hear conflicting views on BME major job outlooks

    I currently am a freshman at Rutgers and want to pursue an undergrad BME degree. From a handful of people I hear that the job outlook in the medical devices/BME field is better for ME and EE because their curriculums and skill sets are more established/ better than those of BME. From others, I...
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    What force am i overcoming when i move an object? break it?

    Homework Statement What force am i overcoming when i move an object? break it? Homework EquationsThe Attempt at a Solution I don't know if there's a forum for more basic conceptual topics but I'm learning about Newtons. I learned the famous for action there is an = and opposite reaction. When...
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    Find maximum thrust of a rocket blasting off

    So weight would be the mass times 9.8. But i did mass * acceleration..Okay.. so should I find weight of the rocket and subtract that from the upward thrust?
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    Draw vectors for a car being dragged along a ramp

    I mean in the class, we didn't go over thrust. Sorry lol. Well a normal car it would be related to the engine, this car is being held by the cable. Actually, because the car isn't moving, is there no thrust at all?
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    Find maximum thrust of a rocket blasting off

    What do you mean? So for the rocket it would be F=(2.49x10^4) * 15.42 For the instrument.. F=(14.5N/9.81) * 15.42 ? Now what?
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    Find maximum thrust of a rocket blasting off

    Well it's a vertical launch..So wouldn't it be the same thing? the only component is in the y direction.. I don't really understand thrust that well. I think it's something like thrust comes out the bottom of the rocket and propels it upwards so the thrust acts upwards? I really don't know
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