Recent content by [imagine]

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    Calculating Work Required to Submerge Gas at Constant Temperature and Pressure

    Here is how I attempt to solve it: B=buoyant force, r(w) = density of water, r(a) = density of air, V=volume of gas, h=depth Fnet = B - Fg = r(w)gh - r(a)gV = 1000*9.81*h - 2.40*9.81*10 = 981h - 235.44 and.. since the forces vary with depth, W = integral of (981h -235.44) from 0 to...
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    Calculating Work Required to Submerge Gas at Constant Temperature and Pressure

    Since there is no area mentioned, I am assuming I won't have to deal with pressures. So, if I calculate the net unbalanced force (Buoyant force - Gravitational = Force Needed to Submerge) and multiply it by the depth, I should get the work required. However, the buoyant force is different at...
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    Calculating Work Required to Submerge Gas at Constant Temperature and Pressure

    Hi, I have a physics problem that I am not sure how I should be approaching: Consider a sample consisting of 10.0L of air at absolute pressure 2.00 atm, with density 2.40 kg/m^3. Find the work required to transport it to a depth of 10.3m with its temperature, volume, and pressure remaining...
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    What is the Resultant Force on a Mass in Non-Uniform Circular Motion?

    Ahhhhh... That clears it all up! Thanks a lot :).
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    What is the Resultant Force on a Mass in Non-Uniform Circular Motion?

    Hi, I have a multiple choice non-uniform circular motion problem that I am trying to solve, but somehow I keep getting an answer that is not one of the possible answers. Here it is: A 0.30kg mass attached to the end of a string swings in a vertical circle (R=1.6m) as shown [ In the diagram...
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    Coefficient of Kinetic Friction

    I am working on a lab report in which a hockey puck is put on a ramp which is lifted until the puck slides. Displacement, acceleration and time are measured. Can someone help me with the discussion questions? I wanted to be as indepth as possible with my answers, thanks in advance. 1) Assess...
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    X Rays vs. Radio Waves - Danger to Humans.

    Could you elaborate how these are molecular effects compared to atomic?
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    X Rays vs. Radio Waves - Danger to Humans.

    Ok, so we all know that the shorter the wavelength, the higher the frequency, and the higher the photon energy for EM radiation. How does this relationship explain why X rays are highly dangerous to living things, and radio waves are not? Thanks in advance.
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