Recent content by Nex3vent

Homework Statement The ρ- meson has a charge of -e, a spin quantum number of 1, and a mass 1507 times that of the electron. The possible values for its spin magnetic quantum number are -1, 0, and 1. Imagine that the electrons in atoms were replaced by ρ- mesons. Select all of the following...

Omg, you really didn't have to take out a graph sheet and do it for me! Thank you so much though! However, because I already tried 6.4E-34 and 6.6E-34, despite it being the APPROPRIATE CORRECT answer, this "online hw" indicate that it was wrong =(. I guessed 6.9E-34, and it was CORRECT! This...

My friend and I tried: 6.0E-34 (way off), 6.4E-34 (within 10%), 6.5E-34 (within 10%), 6.6E-34 (within 10%). Unfortunately, I have to get to work now. I only have 1 last attempt and I'll just guess 6.9E-34 when I return. Thank you for all your help Dadface, but it looks like this one problem I...

I'm sorry but I don't know how to work it out using the minimum and maximum gradient and how to find the percent error. Are you referring to the least squares method? If so, I worked it out to find the slope by hand. I still don't know how to find the percent error and incorporate it into the...

Frequency (c/wavelength): 21.43E14, 25.64E14, 32.15E14, 42.85E14 <= x-axis Maximum Kinetic Energy of Photoelectrons (eV): 2.76, 4.50, 7.19, 11.61 <= y-axis The above are the data points. I plotted them using Excel and then generated a "linear trendline" with an equation. I am not good with...

I'm sorry, I should have clarified that the data is generated by the hw, and wasn't performed experimentally myself. This is part of a online homework set, and they have already predetermined the correct answer. My answer is "within 10%" of the answer that they have.

It says I'm within 10% of the correct answers when I submitted that answer =(. I'm running out of time, I really need help!

Homework Statement Data obtained in a photoelectric experiment: Wavelength (nm): 140, 117, 93.3, 70.0 Maximum Kinetic Energy of Photoelectrons (eV): 2.76, 4.50, 7.19, 11.61 From the graph, determine an experimental value for Planck's constant (in joules-seconds). Homework Equations...