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Introductory Physics Homework Help

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  1. micromass

    Guidelines for students and helpers

    Sep 23, 2014
    2
    46,269
    Replies: 2
    9
  2. Mark44

    Hey! I posted here but now it's gone!

    May 10, 2014
    0
    18,493
    Replies: 0
    6
  3. Doc Al

    Introductory Physics Formulary

    Mar 17, 2012
    6
    122,264
    Replies: 6
    18
  1. CVRIV

    Help with problem involving motion in two dimensions

    Feb 21, 2019 at 12:20 AM
    9
    240
    Replies: 9
    3
  2. PhysicS FAN

    Why can't I get the right answer?

    Feb 21, 2019 at 12:13 AM
    0
    1
    Replies: 0
    0
  3. dykuma

    Calculate the sag (deflection) of a membrane

    Feb 21, 2019 at 12:01 AM
    0
    1
    Replies: 0
    0
  4. Zack K

    Potential difference in a 2 disk system(Capacitor)

    Feb 20, 2019 at 11:38 PM
    4
    61
    Replies: 4
    1
  5. Hoophy

    Uniform Circular Motion, Find Tension

    Feb 20, 2019 at 11:03 PM
    8
    102
    Replies: 8
    5
  6. Hoophy

    Circular Motion With Constant Angular Acceleration

    Feb 20, 2019 at 11:02 PM
    3
    74
    Replies: 3
    2
  7. ryley

    Why is my thinking incorrect? -- Block and spring driven by a motor

    Feb 20, 2019 at 9:43 PM
    5
    124
    Replies: 5
    1
  8. rugerts

    Finding Voltage across Resistor using Node Voltage Method

    Feb 20, 2019 at 8:42 PM
    0
    66
    Replies: 0
    0
  9. RubinLicht

    Voltage around loop half inside a capacitor and half outside

    Feb 20, 2019 at 7:24 PM
    2
    125
    Replies: 2
    0
  10. rugerts

    Finding Node Voltages

    Feb 20, 2019 at 6:58 PM
    3
    104
    Replies: 3
    2
  11. Robin04

    Density function, calculating the mass

    Feb 20, 2019 at 4:49 PM
    4
    140
    Replies: 4
    0
  12. Nat1234123

    What is the observed wavelength of the Hα line?

    Feb 20, 2019 at 3:16 PM
    3
    267
    Replies: 3
    0
  13. castrodisastro

    Find the period of small oscillations (Pendulum, springs)

    Feb 20, 2019 at 12:29 AM
    8
    274
    Replies: 8
    0
  14. Mason Smith

    Solving for the tangential force for a bead on a wire

    Feb 19, 2019 at 10:17 PM
    1
    309
    Replies: 1
    1
  15. jybe

    Sound Interference Problem -- Observer moving between two speakers

    Feb 19, 2019 at 9:52 PM
    3
    387
    Replies: 3
    0
  16. SherlockHolmie

    Infinite number of identical charges r=a2^n

    Feb 19, 2019 at 7:53 PM
    1
    226
    Replies: 1
    0
  17. Kush

    AP Physics C Momentum Problem: A dart launched horizonally by a spring gun

    ... 2
    Feb 19, 2019 at 7:52 PM
    22
    983
    Replies: 22
    4
  18. sp3sp2sp

    Thermal expansion apparatus

    Feb 19, 2019 at 7:40 PM
    18
    865
    Replies: 18
    0
  19. Klaus von Faust

    System of charges

    Feb 19, 2019 at 1:14 PM
    13
    299
    Replies: 13
    5
  20. brotherbobby

    Rotation of a Solid Cylinder

    Feb 19, 2019 at 9:19 AM
    12
    211
    Replies: 12
    0
  21. Klaus von Faust

    Interesting Magnetic Field Induction Problem

    Feb 19, 2019 at 6:35 AM
    4
    368
    Replies: 4
    0
  22. BlackBearFCS

    Pulley question -- Two unequal masses hanging by a string

    Feb 19, 2019 at 4:02 AM
    3
    225
    Replies: 3
    1
  23. Raghav Seetharamu

    Time taken for pressure equalization between two tanks

    Feb 19, 2019 at 3:47 AM
    2
    197
    Replies: 2
    0
  24. PhysicsKT

    Finding the Minimum Time

    Feb 19, 2019 at 3:20 AM
    14
    478
    Replies: 14
    1
  25. NotSoRobot

    Newton's Laws Homework question: Double incline mass problem

    Feb 19, 2019 at 2:15 AM
    2
    222
    Replies: 2
    0
  26. issacnewton

    Snell's law problem about a hemispherical glass ball

    Feb 19, 2019 at 12:16 AM
    9
    405
    Replies: 9
    1
  27. Rafiki

    [Compton scattering] Solving for wavelength

    Feb 18, 2019 at 4:20 PM
    2
    418
    Replies: 2
    0
  28. Np14

    Impulse and Momentum question

    Feb 18, 2019 at 2:06 PM
    4
    244
    Replies: 4
    3
  29. sp3sp2sp

    Measuring the resistance of a resistor

    Feb 18, 2019 at 1:49 PM
    1
    247
    Replies: 1
    0
  30. Davidllerenav

    Horizontally launched projectile

    Feb 18, 2019 at 12:33 PM
    16
    504
    Replies: 16
    0
  31. Abood

    Work Check - Centripetal force - Finding Tension in a Rope

    Feb 18, 2019 at 11:57 AM
    8
    262
    Replies: 8
    0
  32. Mason Smith

    Question involving the conservation of momentum

    Feb 18, 2019 at 9:26 AM
    4
    744
    Replies: 4
    2
  33. Naman Singh

    Challenging question about electromagnetic induction

    Feb 18, 2019 at 8:02 AM
    9
    929
    Replies: 9
    1
  34. Abhishek11235

    Number of collisions with a block

    Feb 18, 2019 at 7:12 AM
    6
    793
    Replies: 6
    8
  35. Davidllerenav

    Time of closest approach between two particles

    ... 2 3
    Feb 18, 2019 at 4:45 AM
    42
    1,118
    Replies: 42
    2
  36. Mark Zhu

    Electric Fields from Linear Charges

    Feb 18, 2019 at 2:24 AM
    7
    694
    Replies: 7
    4
  37. Sylvia

    Phase Difference between Voltage and Current

    Feb 18, 2019 at 12:27 AM
    9
    2,176
    Replies: 9
    0
  38. physics_pi_rate

    Thermodynamics: P-V diagram question

    Feb 18, 2019 at 12:13 AM
    2
    319
    Replies: 2
    0
  39. Davidllerenav

    Determine the angular velocity as a function of the angle

    ... 2
    Feb 18, 2019 at 12:01 AM
    39
    378
    Replies: 39
    0
  40. Tak Mok

    Circular Motion Application Question

    Feb 17, 2019 at 8:40 PM
    1
    258
    Replies: 1
    0
  41. paprika213

    Uniform Circular Motion

    Feb 17, 2019 at 8:31 PM
    4
    344
    Replies: 4
    0
  42. Davidllerenav

    Circular motion problem.

    Feb 17, 2019 at 7:42 PM
    18
    365
    Replies: 18
    0
  43. Foofistan

    How effective is Charles' Law in determining absolute zero?

    Feb 17, 2019 at 6:10 PM
    1
    264
    Replies: 1
    0
  44. Davidllerenav

    What is the maximum speed that an object must reach to satisfy minimum transit time?

    ... 2 3
    Feb 17, 2019 at 4:18 PM
    53
    1,514
    Replies: 53
    3
  45. TachyonLord

    Sources of errors in a spectrometer experiment

    Feb 17, 2019 at 3:17 PM
    8
    1,008
    Replies: 8
    0
  46. Lapse

    Need to find final Height, Equation not Working

    Feb 17, 2019 at 1:41 PM
    5
    238
    Replies: 5
    2
  47. Anurag98

    What is the magnetic field generated by these two particle beams?

    Feb 17, 2019 at 11:16 AM
    14
    333
    Replies: 14
    1
  48. Abhishek11235

    Atwood with cylinder

    Feb 17, 2019 at 12:10 AM
    4
    250
    Replies: 4
    1
  49. ju456one

    Projectile Motion: Pitcher throwing a ball to a catcher

    Feb 16, 2019 at 6:05 PM
    2
    286
    Replies: 2
    1
  50. SINAN EXPERT

    Conservation of energy: Change in temperature of a bucket of water after a ball falls into it...

    Feb 16, 2019 at 4:08 PM
    6
    747
    Replies: 6
    0
  51. Lapse

    What is the final V in the vertical direction?

    Feb 16, 2019 at 3:26 PM
    3
    455
    Replies: 3
    0
  52. Keeeen

    Single transfer lag in an open-loop system

    ... 2
    Feb 16, 2019 at 2:50 PM
    23
    1,188
    Replies: 23
    3
  53. yohanes vianei

    Applying Gauss’ Law

    Feb 16, 2019 at 12:30 PM
    1
    323
    Replies: 1
    2
  54. askbbj

    ,what happens to a light photon when it hits glass?

    Feb 16, 2019 at 4:36 AM
    5
    367
    Replies: 5
    1
  55. Klaus von Faust

    A challenging capacitor problem

    ... 2
    Feb 16, 2019 at 12:40 AM
    21
    913
    Replies: 21
    20
  56. Albertgauss

    -qEx for a vertical spring in a constant Electric field

    Feb 15, 2019 at 1:41 PM
    5
    465
    Replies: 5
    0
  57. TheBigDig

    Spin Annhilation and Creator Operators Matrix Representation

    Feb 15, 2019 at 12:13 PM
    2
    440
    Replies: 2
    0
  58. escape_velocity

    Pressure equalization between two tanks

    ... 2
    Feb 15, 2019 at 6:54 AM
    20
    8,751
    Replies: 20
    6
  59. rico22

    Vectors & Force Physics

    Feb 15, 2019 at 6:52 AM
    4
    4,910
    Replies: 4
    0
  60. songoku

    Correct statement about perfectly elastic collision

    Feb 14, 2019
    14
    583
    Replies: 14
    1
  61. Sherlock01

    Need help with finding thermal and Kinetic energy

    ... 2
    Feb 14, 2019
    20
    360
    Replies: 20
    0
  62. QuantumDuck23

    Maximum Horizontal Force of Relativistic Point Charge

    Feb 14, 2019
    2
    412
    Replies: 2
    1
  63. James2911

    Initial and Final Kinetic Energy

    Feb 14, 2019
    1
    250
    Replies: 1
    0
  64. songoku

    Correct statement about force between two charges

    Feb 14, 2019
    10
    363
    Replies: 10
    5
  65. IshaanM8

    Question about Phase Change & Latent Heat

    Feb 14, 2019
    13
    367
    Replies: 13
    1
  66. brotherbobby

    Alpha Particle Scattering and angular momentum

    Feb 14, 2019
    4
    242
    Replies: 4
    0
  67. Othman0111

    Contour Integral - Mathmetica

    Feb 13, 2019
    3
    547
    Replies: 3
    1
  68. songoku

    Motion of masses connected by a string over a pulley

    ... 2
    Feb 13, 2019
    24
    797
    Replies: 24
    8
  69. Specter

    Calculating acceleration from the coefficient of kinetic friction

    ... 2 3
    Feb 13, 2019
    48
    2,344
    Replies: 48
    18
  70. Danielpom

    Newton's 2nd law with oscilations

    Feb 13, 2019
    17
    491
    Replies: 17
    4
  71. walking

    Train collision (linear kinematics)

    Feb 13, 2019
    6
    274
    Replies: 6
    1
  72. Radical

    Newton's law of cooling

    Feb 13, 2019
    2
    224
    Replies: 2
    0
  73. Jony S

    Calculation of resulting force from out of axis Torque

    ... 2
    Feb 13, 2019
    21
    752
    Replies: 21
    2
  74. Clara Chung

    Gauss law two infinite plane question

    Feb 12, 2019
    1
    247
    Replies: 1
    1
  75. Jimmy87

    Help with Two Sources of EMF

    Feb 12, 2019
    4
    480
    Replies: 4
    2
  76. Taulant Sholla

    Adiabatic PVT relationships - why Kelvin and not Celsius?

    Feb 12, 2019
    3
    508
    Replies: 3
    0
  77. songoku

    Comparison horizontal distance in presence of resistance

    Feb 12, 2019
    8
    350
    Replies: 8
    4
  78. Alexanddros81

    A jet comes in for a landing on solid ground

    Feb 12, 2019
    1
    275
    Replies: 1
    1
  79. songoku

    Balance reading when new object immersed in water

    ... 2
    Feb 12, 2019
    20
    1,648
    Replies: 20
    9
  80. songoku

    Flash in rocket will arrive first at front or back?

    Feb 12, 2019
    12
    858
    Replies: 12
    0
  81. VividAce

    Conceptual Physics homework Help -- Two insulating balls with charge hanging from strings

    Feb 11, 2019
    2
    337
    Replies: 2
    0
  82. John Wiggum

    Finding the Current in a circuit

    Feb 11, 2019
    6
    668
    Replies: 6
    3
  83. Ujjwal Basumatary

    Convoy problem

    Feb 11, 2019
    4
    299
    Replies: 4
    0
  84. poh

    Free fall velocity and distance

    ... 2
    Feb 11, 2019
    34
    1,042
    Replies: 34
    2
  85. Lapse

    What is the expression for the velocity of the Car in Vector

    Feb 11, 2019
    5
    320
    Replies: 5
    3
  86. Darkbound

    1D Angular Motion with different velocity stages

    Feb 11, 2019
    3
    479
    Replies: 3
    1
  87. Decadohedron

    Period of Oscillations near equator

    Feb 10, 2019
    5
    340
    Replies: 5
    0
  88. James Beedy

    comparing image sizes of the hotter stars with the cooler stars

    Feb 10, 2019
    3
    430
    Replies: 3
    0
  89. MedEx

    Calculate Net Charge Contained by the Cube

    Feb 10, 2019
    15
    403
    Replies: 15
    5
  90. Kkurenai

    Need help to solve an oscillation problem.

    Feb 10, 2019
    6
    602
    Replies: 6
    7
  91. DapperDan

    Calculate Electric Potential from Non-uniform Linear Charge

    ... 2
    Feb 10, 2019
    20
    903
    Replies: 20
    12
  92. songoku

    Kinetic energy and momentum of two satellites colliding

    Feb 10, 2019
    8
    1,218
    Replies: 8
    5
  93. siapola1

    Static equilibrium -- A picture hanging on a wall

    Feb 9, 2019
    9
    713
    Replies: 9
    0
  94. Davidllerenav

    Trajectory of a particle when its position vector changes

    ... 2 3
    Feb 9, 2019
    46
    1,594
    Replies: 46
    1
  95. rugerts

    Finding the values of voltage and current in this circuit

    Feb 9, 2019
    12
    548
    Replies: 12
    1
  96. Larissa McNeil

    Magnitude of an electric field

    Feb 9, 2019
    4
    551
    Replies: 4
    0
  97. dRic2

    Current density

    Feb 9, 2019
    11
    738
    Replies: 11
    3
  98. messier992

    Length Contraction & Time Dilation

    Feb 9, 2019
    5
    850
    Replies: 5
    3
  99. tots123450

    What is the potential at point D in the circuit

    Feb 8, 2019
    9
    453
    Replies: 9
    1
  100. Mutatis

    Net force acting on a charged particle ##+Q##

    Feb 8, 2019
    9
    611
    Replies: 9
    6
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