Hydrogen lines?
Good day,
Can someone please explain to me how we get these solutions in tasks a, b and c?
best regards and thank you very much
Good day,
Can someone please explain to me how we get these solutions in tasks a, b and c?
best regards and thank you very much
(a) The ammeter shows a reading of 0.075 A. Calculate the potential difference across the 80 resistor. My solution U=6V B)(b) Calculate the resistance of the resistor R in Figure 3. My solution R=18.3 ohm (c) Switch X is closed. State what happens to the total resistance of the circuit and the current through the…
Hello, it seems to me at the end of January that, as the days get longer, there's already a one-hour difference in the evening (dawn around 5 p.m., on December 21st it's already 4 p.m.), but dawn only sets at 7:30 a.m., on December 21st it's around 8 a.m. So, a one-hour difference in the…
Hello! I have given this task: In the X-ray absorption spectrum of Ag, the absorption edges are located at the following positions: K-edge: 0.485 ร , L_1 : 3.25 ร , L_2 : 3.51 ร , L_3 :3.69 ร In the solution, the energy of the K level is given as 25.5 keV. However, with the formula: E_n=13.6…
We're supposed to do a student experiment and prepare something for it at home. There are three experiments in total, but I can handle the other two. To be honest, I don't know anything about physics, and I've been sick for the last two weeks, so I don't know if we discussed anything about it…
Good evening, How would you best solve this problem? I've attached the problem, followed by my approach to solving it. I look forward to your helpful answers ๐โโ๏ธ Several DC lamps are to be connected in series to a battery with a voltage of 9 V. Each of these lamps is an ohmic resistor with…
Are there any scientific ideas or do you have any ideas on how to give Mars an atmosphere?
W = e*U = h*f
and c = f* lambda
That should be enough to calculate.
The only “activity” here is to convert the energy unit “electron volt” (eV) into the SI unit Joule (J). The numerical value corresponds to that of the elementary charge (with the unit J) and is therefore
1 eV = 1,602176634.10-19J
With:
And task a) is