How can I enter into the IT field after 30?

Magnetism, how to find speed of the protons as they enter electric field?

• A beam of protons is accelerated easterly from rest through a potential difference of 3.0 kV. It enters a region where there exists an upward pointing uniform electric field. This field is created by two parallel plates separated by 15 cm with a potential difference of 250 V across them. 1. What is the speed of the protons as they enter the electric field? (in m/s) 2. Find the magnitude of the magnetic field (perpendicular to E) needed so the beam passes undeflected through the plates. (in mT) 3. Is the direction of the magneic field toward the south or toward the north? 4. What happenes to the protons if the magnetic field is greater than the value found in #2? The protons will be deflected upward or downward? Please help provide explanation how to solve. Thank you.

• Answer:

  This is not an answer but hope it helps. Let's go! Time has two properties. Progress(related to evolution) and Event(related to Creation) by turns. and Probability exist between two properties. Mobius strip explains it very well. (one progress, one event, one probability) Look at this! Chicken (event) Egg (progress) & Egg (event) Chicken (progress) Schrodinger's cat was placed between one properties, just event. So, probability can not exist. The reason, Wave-particle duality of light. I think so... Progress / Event / Probability is a time. This is my trinity. Does time have the shape? Does soul have the shape? Everything has the shape but these two in the world. So, I made a great assumption "Time is soul(thinking, knowledge, memory, etc.)". It was the beginning of my UNIONTERA. We know... To our great discouragement, these doesn't have one way by us. Time walked to the way of science. Soul walked to the way of religion. Now, I propose a great reconciliation. Light up candle for a second. A second of light exist permanently or not? Einstein deceive our world. Where is our common sense? I mean, why he didn't tell us this so easy common sense. The only base which can be the cause of Einstein's assumption... [Assumption] "principle of constancy of light velocity". [The only base] "Time of light is different from the starting point time." This base is not an assumption but a common sense. Can you see? In my opinion, he already knew this base. This common sense is a certain evidence for me. This is my uniontera. Existence is the time expressed by light itself. http://www.youtube.com/watch?v=AN1jTwHUC7E - Key Point - 1. Arrow A is the laser work. (Same time work) 2. Arrow B is the reason of gravity. (also, Higgs boson individually / Different time work) 3. The rose line is the beginning light. (result from Bible) 4. The existence of different time. (result from relativity of light) 5. 2 dimension is not a space. (result from 2-axis, math) 6. Universe came from nothing. (result from No.5 / cf. Playing with bubbles) 6-1. A barrier[posititon] exist between the inner and outer bubbles. But universe do not have that barrier. (Cause of Inertia / Reason of Sun / Position of Antimatter) 6-2. Nothing is not a no existence. No existence is a zero dimension. There is two zero dimension. One has a position. The other doesn't have a position. These different positions were connected by something. That "something" is not a what but a way. (Cause of Light) 7. Progress / Event / Probability is a time. (This is my trinity.) 8. Wave-particle duality of light, creation & evolution, uncertainty principle, etc. (result from No.7) 9. Coalescing of different time. (Cause of Rotation & Spin / Equator has plenty of time.) 10. Your so-called black hole is a wholly condensed time. (cf. Kerr spacetime, math) 11. The reason of "your so-called magnetic field". (result from step3 and 4) 12. The reason of "your so-called electric field". (result from the crack of time / Same time's crack is a different time's coalescing. / Cause of Static electricity) 13. Your so-called "space" is a crack of time. (result from No.12 / Cause of Lightning) 14. Boundary is a crack of space. (result from No.13 / Same space's crack is a different time's contact. / Cause of Superfluid, cf. Fractal) 15. Boundary is nothing. Your so-called hole is a boundary itself. Also, nothing is K=0 temperature. (result from No.14 / cf. Calabi-Yau Space, math) 16. This is a wall of your so-called fire. (result from No.15) - copyright ⓒ uniontera Our nonsense have come from one time. Uniontera is a key. English is not my first language, sorry! If it is difficult to understand, just remember & enjoy "Hand touching everything is a time". This is the only one result of uniontera.