Recent content by Jmiz

Thanks for the tip- Jack

Dave, I am not sure if I follow your logic. You said f doesn't change, and then followed by stating it does change with changing wavelength. Anyhow, I don't think the frequency will change with wavelength change in an example of a typical thin film problem: monochromatic light goes from let's...

Hi there, I am in need of another's thoughts on this topic. I at first thought frequency is something that doesn't change and is inherent to the source, so then increasing the wavelength shouldn't lead to an increase in frequency, but an increase in speed. I realized later that this only...

Buzz, I believe based on the stem of the question, one cannot conclude A would sink slower based on your logic because though it has a larger volume it would have a lower density because both A and B needs to have the same mass. Secondly, stating that both balls have a density greater than water...

Thanks a lot to everyone who contributed! It seems clear to me that this was a mistake by Kaplan.

Thanks for your very helpful explanation!

The image is just as I described: 2 circles nothing else one circle, labeled A, is larger than the second, labeled B. No bodies of water in picture.

The answer key stated choice A. I picked choice C because it was the only one that made some what sense to me, but if there was a choice that said "it is impossible to know without knowing the density of each ball" I would have selected that. Given consideration of your information, the balls...

The essential of floating is when the buoyant force equals the weight.

Yes the answer was ball A. Kaplan answer key probably assumed that the volume submerged will be greater for ball A because it was drawn as larger...

Question: Balls A and B of equal mass are floating in a swimming pool, as shown below. Which will produce a greater buoyant force? (Image shows two circles with circle A larger than circle B) A. Ball A B. Ball B C. The forces will be equal D It is impossible to know without knowing the volume...

Ultimately, still back to the heart

One way to regulate blood pressure is through vasoconstriction which in turn increases peripheral resistance, but also decrease the amount of blood that passes through the vessel. These two changes have opposite effects on blood pressure. So is it because the resistance increase effect lead to a...

I see what your saying. I think I misunderstood the question then. I am only thinking of the cases where charge movements would be spontaneous so there will always be a lose of potential energy (turned into KE to accelerate the particle). The cases that you introduced will require an external...

PEg = Gm1m2/r2 so yes it does. But unlike charge mass cannot be positive or negative and will only vary by magnitude. Ultimately for both positive and negative test charges there will be a negative change in electric potential energy correct, in other words the change in potential energy doesn't...