Recent content by Moomba44

Okay, I redid everything and I got 2.521x10^-9 m for the wavelength...I might as well take baby steps since either I or my calculator is screwing up what I type, so is this calculation correct? And if so, to convert it to nanometers I'm supposed to divide by 10^-9 if I'm not mistaken.

yeah, I realized i was putting something wrong into the equation, so for wavelength I got .252 cm...which corresponds to 2,520,000 nanometers...is this close to being right or am I still screwing something up?

to find f I've been putting in f = E/h, which I've been imputting as the energy from the original problem, 7.9 x 10^-16, divided by h, so it looks like 7.9 x 10^-16/6.626 x 10^-34. Is this wrong right here or is my calculator possibly giving me funky numbers for no reason? lol.

Okay, I think I had better post again, because something is surely off in what I am doing with this problem. My answer that I got for Frequency was something in the neighborhood of 1.16x10^-50 s, and whenever I plug that into the wavelength equation and solve for wavelength I get the...

Edit: Thank you dav, I thought I was on the right track but you confirmed it. Thanks a bunch guys!

This is one of the questions on my regular worksheets we have before our tests: A fast-moving electron traveling through a vacuum tube slams into a piece of steel, coming abruptly to rest and emitting an X-ray photon with an energy of 7.90×10-16 J. What is the wavelength of the photon? I...

Hey again, once again I have no idea where to start on an equation that I received on a quiz A 70 kg skater initially moving at 10.0 m/s across the ice drags the rough part of one skate along the ice, slowing herself to 4.0 m/s over a 2.0 s period of time. What is the magnitude (a positive...

Lol actually I'm from Wisconsin :cool:

I have not yet in class, but I did just find something in my book about the law, and it is helping me a lot. I'll hopefully get the answer from here. Thank you for helping :smile:

Okay, seeing that I'm new, I'll just tell everyone who reads this that I am a freshman in college, second semester, and am in Introductory Physics. Unfortunately, I've never taken a physics course before, and no science period since Junior year in HS. My professor posts online quizzes each...