Recent content by plstevens

As part of the exploration of one of the moons of Jupiter, a probe digs under the surface, where it finds a pocket of gas. It starts to do some on-board experimentation. The data stored in the probe's computer include the following table of Mulliken electronegativity values of gases. Element...

also in the first step, how did u convert from J to eV? And where did delta E come from?

Thank you so much, but i have one question: when u did 114*10^12 was that showing the conversion factor from THz to Hz?

ok, is this how i should set this equation up? (4*10^-6)(2*10^-15)(5.00%)>=h/4(phi)

An electron in a hydrogen atom relaxes to the n= 4 level, emitting light of 114THz.

I do know that the standard rule is to show an attempt but there is no examples in my textbook. So, if someone could help me that would be greatly appreciated.

well thanks anyway but i figured it out.

meters is the unit, by the way

i just got it, it's 0.649*10^-8.

uh, i don't understand it or i would but thanks for all your help! But if someone else could please help me with this problem that would be greatly appreciated

answer should be in meters. lamda=_______m

A student is examining a bacterium under the microscope. The bacterial cell has a mass of 0.200 (a femtogram is 10^-15) and is swimming at 4.00 microns per second, with an uncertainty in the speed of 5.00%. E.coli bacterial cells are around 1 micron, or 10^-6 meters in length. The student is...

so hows do i get the percentage here's what I'm doing: 3.00*10^8 m/s /100 = 0.00732/x. x=2.4*10^8, but i know this isn't right so, what shall i do?

The mass of an electron is 9.11*10^-31 kg. If the de Broglie wavelength for an electron in an hydrogen atom is 3.31*10^-10 m, how fast is the electron moving relative to the speed of light? The speed of light is 3.00*10^8 m/s. here's what I did: i solved for...

help!