I am having a hard time on how to get V in wavelength= h/mv
If I multiply by mv
then I get W(mv)=h
Then I get Wmv=h
I divide by Wm and get V=h/Wm
...but that doesn't seem to work.
My other question is if I am using the correct values.
W (wavelength or lamda)= 7.11x10^(-11)m
h= 6.63x10^(-34)
m= 96g
I need more help!!
change mass to kg, but shouldn't it be the mass of an electron? That is NOT 96 grams.
Thank you sooo much, I was using grams of Molybdenum, so I looked up the mass of an electron and converted it and got the correct answer. I thought I didn't solve for V right, I'm amazed that I got that right.
Thank you for your help!
I can help you understand how to solve for v in the given equation wavelength = h/mv.
To solve for v, we need to isolate it on one side of the equation.
Starting with the equation: wavelength = h/mv
First, let's multiply both sides of the equation by mv to eliminate the denominator:
wavelength * mv = h
Now, we have wavelength multiplied by mv on the left side and h on the right side.
Next, we need to divide both sides of the equation by wavelength to solve for mv:
mv = h / wavelength
At this point, it seems you made a mistake in your calculation. You wrote Wmv = h, but it should be mv = h / wavelength.
Let's continue with the correct equation:
mv = h / wavelength
Now, to solve for v, we need to isolate it. To do this, we can divide both sides of the equation by m:
v = h / (m * wavelength)
Now, let's substitute the given values into the equation:
wavelength = 7.11 x 10^(-11) m
h = 6.63 x 10^(-34) J·s
m = 96 g = 0.096 kg (remember to convert grams to kilograms)
Now we can plug these values into the equation to calculate v:
v = (6.63 x 10^(-34) J·s) / (0.096 kg * 7.11 x 10^(-11) m)
Using scientific notation and performing the calculation:
v ≈ 9.37 x 10^6 m/s
Therefore, the value of v is approximately 9.37 x 10^6 m/s.
I hope this clears up the confusion and helps you understand how to solve for v in the given equation. If you have any further questions, feel free to ask!