Recent content by WolfeSieben

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    Solving F = MA: Finding Force When Mass and Acceleration Are Given

    Force = Mass x Acceleration If the units are kg's F = (10)(5) 50 Newtons.
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    How can I solve this automobile physics problem involving a helium balloon?

    I actually had a similar problem in my first year mechanics course. I can't recall the intimate details, but you have to figure out the minimum angle that the road has to be banked so that the car can take it at 90 km/h if the road was frictionless. That will be the angle the balloon will be at...
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    Calculating RMS Speed of Molecules in a Compressed Gas

    Perfect, I returned to this problem and got it correct. Thank you for all of your help. @WonSol Just out of curiosity, do you go to UofC? It would be quite the coincidence if two institutions had the same question, during the same week haha.
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    Calculating RMS Speed of Molecules in a Compressed Gas

    So I plugged in the new value: Hydrogen atom (diatomic) 3.34 x 10^-27 kg (used 1.007g/mol / avagraddo's) and my overall answer came out as 1,288 m/s and the assignment is still saying it is wrong. I am obviously missing something, but I don't see what. Any help/hints would be appreciated! Thanks
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    Calculating RMS Speed of Molecules in a Compressed Gas

    Alright, So the calculation itself appears to you to be fine, just make sure my #'s are correct?
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    Calculating RMS Speed of Molecules in a Compressed Gas

    Haha, oops. Well, I tried this equation with both 1900J (total translational kinetic energy) and 3200J (thermal energy) for my E1. Using 3200 J ends up in 1,825 m/s and 1900 J ends with 1080 m/s. (both came back as incorrect) Sorry for the confusion!
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    Calculating RMS Speed of Molecules in a Compressed Gas

    Homework Statement So this is the final section of a problem I had posted earlier, and I'm kinda stumped again. The rms speed of the molecules in 1.2 g of hydrogen gas is 1800 m/s. 300 J of work are done to compress the gas while, in the same process, 1500 J of heat energy are transferred...
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    Water Bottle Experiment (not that of Newton's)

    You're more than welcome, I've gotten a lot of help from the other members here so it is my pleasure to give back when I can. I'm actually a Premed student double majoring in Biological Sciences and Chemistry. I'm in my 4th year, but I also love physics, so I am doing several courses in it as...
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    Water Bottle Experiment (not that of Newton's)

    Okay, Well to explain this concept without using the equation is also possible. As the height/depth of the water increases, the pressure applied near the holes is higher, because there is more pressure pushing down on the liquid at the depth of the holes. as this water drains, the pressure...
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    Water Bottle Experiment (not that of Newton's)

    For this experiment, Let's take a look at the formula for pressure in liquids. P = P. + pgd P = Pressure (in pascals P. = Pressure at the surface of the liquid (generally 101,325 Pa at sea level) p(greek letter rho) = the density of the fluid (for water it is 1000) g = gravity (9.81...
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    Thermodynamics - Thermal Energy of a gas

    Perfect, so I multiplied 1.9 KJ by 5/3 and it gave me the correct answer. However I am interested in understanding the concept behind the question. Why is it that the degrees of rotational freedom and 3 degrees of translational freedom equate to multiplying by 5/3? Thanks for your help!
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    Vector problem with traveling car

    For vectors, the total displacement is from the origin to the final location. Try drawing this problem out. For example, you drive 5km east, and 5 km south. Our human logic states that we drove 10 km. however, this isn't the displacement. We've only displaced ourselves by the hypotenuse of the...
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    Thermodynamics - Thermal Energy of a gas

    Homework Statement The rms speed of the molecules in 1.2 g of hydrogen gas is 1800 m/s. What is the thermal energy of the gas? Homework Equations m = Mass of 1 H molecule: 1.67 x 10^-27 kg N = Total # of molecules = 7.19 x 10^23 molecules c = rms speed The equation provided by my...
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    Physics - Thermodynamics - Pressure caused by Nitrogen atoms hitting a surface

    Perfect, So I punched in 7233 and it said the proper answer was 7230, but it gave me full credit for the answer. Thanks again.
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