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Forum: Mathematics and Physics

From time to time everyone is faced with these problems.

  1. Sticky Thread Sticky: ALL E-BOOKS HERE WILL BE DELETED!!! USERS WILL BE WARNED !!!

    Started by klug, 6th March 2007 17:51
    • Replies: 0
    • Views: 21,044
    klug
    6th March 2007, 17:51 Go to last post

  1. Does the wave equation only apply to waves with low frequency?

    Started by skatefast08, 30th September 2018 04:43
    • Replies: 2
    • Views: 625
    c_mitra
    17th March 2019, 01:11 Go to last post

  2. Tricky Algebra! Help

    Started by LeatherNeck, 21st February 2019 23:03
    2 Attachment(s)
    • Replies: 2
    • Views: 1,535
    LeatherNeck
    22nd February 2019, 00:40 Go to last post

  3. [SOLVED] Polar To Rectangular on the calculator, error

    Started by LeatherNeck, 21st February 2019 22:10
    • Replies: 4
    • Views: 216
    LeatherNeck
    21st February 2019, 22:38 Go to last post

  4. Magnetic flux conduit for flux concentration?

    Started by gbugh, 29th January 2019 15:22
    • Replies: 5
    • Views: 1,683
    FvM
    30th January 2019, 17:47 Go to last post

  5. On the use of 'operator' term!!

    Started by B4M, 21st January 2019 17:22
    • Replies: 0
    • Views: 549
    B4M
    21st January 2019, 17:22 Go to last post

  6. computing roots on a calculator

    Started by Zak28, 20th January 2019 02:15
    • Replies: 8
    • Views: 785
    FvM
    21st January 2019, 09:32 Go to last post

  7. Algorithm for Timetabling

    Started by sassyboy, 19th January 2019 00:21
    • Replies: 2
    • Views: 430
    Aussie Susan
    20th January 2019, 23:23 Go to last post

  8. Medical Physics - Alpha Radiation Highly Ionizing: Why is it dangerous?

    Started by sassyboy, 12th January 2019 23:25
    • Replies: 4
    • Views: 767
    andre_teprom
    20th January 2019, 22:59 Go to last post

  9. Better understanding of capacitor charging

    Started by Kajunbee, 9th December 2018 17:48
    2 Pages •
    1 2
    • Replies: 22
    • Views: 2,924
    Ratch
    18th December 2018, 07:14 Go to last post

  10. power (W) sum of series & parallel circuit.

    Started by myjae, 4th December 2018 03:37
    2 Attachment(s)
    • Replies: 4
    • Views: 724
    KlausST
    4th December 2018, 07:28 Go to last post

  11. Coulomb Gauge vs. Lorenz Gauge

    Started by dzafar, 2nd December 2018 03:55
    • Replies: 0
    • Views: 354
    dzafar
    2nd December 2018, 03:55 Go to last post

  12. [SOLVED] Initial and final energy stored in a capacitor

    Started by sassyboy, 5th November 2018 12:42
    2 Pages •
    1 2
    6 Attachment(s)
    • Replies: 20
    • Views: 2,580
    Akanimo
    8th November 2018, 21:01 Go to last post

  13. what is the value of ϴ0?

    Started by moon1989, 5th November 2018 18:35
    1 Attachment(s)
    • Replies: 1
    • Views: 349
    FvM
    5th November 2018, 22:48 Go to last post

  14. Capacitance question

    Started by sassyboy, 5th November 2018 12:34
    2 Attachment(s)
    • Replies: 5
    • Views: 608
    Ratch
    5th November 2018, 17:58 Go to last post

  15. What is the meaning of Skin Depth?

    Started by dzafar, 2nd November 2018 00:02
    • Replies: 1
    • Views: 610
    KlausST
    2nd November 2018, 07:34 Go to last post

  16. Laplace from a frequency dependent expression

    Started by franticEB, 20th October 2018 12:25
    • Replies: 4
    • Views: 836
    FvM
    1st November 2018, 00:15 Go to last post

  17. [SOLVED] General Identity of Derivative

    Started by dzafar, 27th September 2018 21:58
    • Replies: 8
    • Views: 1,239
    timof
    31st October 2018, 22:42 Go to last post

  18. How to check if given samples represent an underdamped signal that converges?

    Started by hdaana, 22nd October 2018 18:06
    • Replies: 2
    • Views: 798
    KlausST
    23rd October 2018, 07:42 Go to last post

  19. Windage loss of flywheel

    Started by Kajunbee, 12th October 2018 16:12
    • Replies: 7
    • Views: 1,406
    Kajunbee
    13th October 2018, 17:32 Go to last post

  20. [SOLVED] Practical communication system in light of Shannon equation

    Started by peterh01, 11th October 2018 00:43
    • Replies: 0
    • Views: 506
    peterh01
    11th October 2018, 00:43 Go to last post

  21. Differential equation for dynamical systems

    Started by garimella, 6th October 2018 06:57
    1 Attachment(s)
    • Replies: 9
    • Views: 1,297
    Ratch
    9th October 2018, 23:00 Go to last post

  22. [SOLVED]Closed: Solving electrical circuit - loop method.

    Started by piotrekn95, 20th August 2018 16:51
    5 Attachment(s)
    • Replies: 3
    • Views: 2,260
    piotrekn95
    23rd August 2018, 18:25 Go to last post

  23. Closed: Metamaterial theory H-field calculation on the SRR

    Started by abdennasser, 17th August 2018 03:41
    2 Attachment(s)
    • Replies: 0
    • Views: 647
    abdennasser
    17th August 2018, 03:41 Go to last post

  24. Closed: Electrodynamics, wave equation, velocity of waves

    Started by htg, 13th February 2018 17:49
    • Replies: 9
    • Views: 4,840
    Mohammad_Ali_AbdEl-Raheem
    6th August 2018, 20:41 Go to last post

  25. [SOLVED]Closed: Thevenin's law - tricky example.

    Started by piotrekn95, 3rd July 2018 16:46
    2 Attachment(s)
    • Replies: 11
    • Views: 3,622
    Ratch
    24th July 2018, 20:54 Go to last post

  26. Closed: Flyball spin up time

    Started by Kajunbee, 26th May 2018 15:59
    • Replies: 3
    • Views: 1,446
    FvM
    26th May 2018, 23:11 Go to last post

  27. Closed: What is the continuity equation for a compressible fluid?

    Started by rahul.6sept, 6th May 2018 18:06
    • Replies: 3
    • Views: 1,993
    andre_teprom
    11th May 2018, 12:37 Go to last post

  28. [SOLVED]Closed: capacitor charge with current source + resistor

    Started by c0x, 29th January 2018 16:47
    7 Attachment(s)
    • Replies: 18
    • Views: 5,957
    tinhkt5491
    7th May 2018, 05:42 Go to last post

  29. Closed: Polymer device PEDOT

    Started by rosadellavita, 2nd May 2018 22:52
    • Replies: 0
    • Views: 793
    rosadellavita
    2nd May 2018, 22:52 Go to last post

  30. Closed: [Moved]: Why PN junction has P side higher energy level?

    Started by sys_eng, 28th April 2018 22:39
    • Replies: 0
    • Views: 680
    sys_eng
    28th April 2018, 22:39 Go to last post
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