Recent content by tenbee

This is what I read about distinguishing the two: "you definitely can't mix these up - one is gravitational potential energy, and the other is the potential energy due to pressure, which is a result of the weight of fluid, air, etc. pushing down from above. imagine that you were a water...

Homework Statement Please help me understand when I should use \rhogh vs. \rhogy. Homework Equations P = \rhogy P =\rhogh The Attempt at a Solution (In a uniformly dense solution) \rhogh is essentially the gravitational potential energy at a specified point in a fluid column...

Homework Statement A practice problem showed the relationship between frequency and wavelength to be inversely exponential. I don't understand why is the graphical relationship is not [instead] inversely linear. What concept am I missing? (No calculus please... I'd be clueless :biggrin:)...

Great - thanks for showing me the equations as well!

Oh Sorry I wasn't more descriptive in the title - I clicked submit before realizing that.

Homework Statement This time I'd like someone to verify that my rationale behind the correct answer is accurate... Which of the following will decrease the chance of turbulent blood flow in a vein? A. Narrowing the vein. B. Thinning the blood without changing its density. C...

AHHHHHHH... yes, yes - I forgot about the force on the other side of the car! Thanks so much.

Homework Statement I'm having trouble understanding the relationship between pressure, speed, and displacement to answer the following question correctly: While you are stopped at an intersection turn lane, a large truck zooms by, just a few feet from your car. As the truck passes, your car...

Update: 1) The correct graph is a square root function, so it looks like the inverse of an exponential function. ...parabola... hyperbole... sigmoidal... etc... none-of that mattered because I just wanted to relate the mathematical function of the graph to the equation I gave, and not so much...

Yes you can - just memorize the equations : ) Besides I wasn't an engineering or physics major in college and took physics without calculus as electives.

Okay, ignoring all else where is the negative component in this equation F∆xcos\theta = 1/2mv^2?? Here's the practice problem verbatim: A student applies force to a stalled car over a distance ∆x to increase its kinetic energy. Which graph BEST represents the relationship between the car's...

Thanks darkxponent! Could you tell me which component in the equation F∆x = 1/2mv2 I could specifically look at and determine the graph is a negative exponent function? Is it because there's a "1/2"? If that is true... will any coefficient < 1 result in a negative exponential function?

Homework Statement You're pushing a car up an inclined plane (a hill). Which graph matches the relationship between ∆x and v? Homework Equations W = K.E. + P.E. thus: F∆xcos\theta = 1/2mv2 + mgh The Attempt at a Solution The answer is C. I thought the answer was D - I don't understand why...

Ahhh, I see - yes that works. Thank you! When should I use x = x0 + v0t + 1/2at2 versus a = (d/t)/t?

Homework Statement Half-Passage: In the packing industry, processing packages via conveyor belts is immensely practical and vital for operations. Maintaining packages in a neat and file line is no easy task, considering that many conveyor belts are non-linear and require the traversal of hills...