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Introductory Physics Homework

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  1. micromass

    Guidelines for students and helpers

    Sep 23, 2014

    2

    1
    Replies: 2
  2. Mark44

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

    May 10, 2014

    0

    5
    Replies: 0
  3. Doc Al

    Introductory Physics Formulary

    Mar 17, 2012

    6

    11
    Replies: 6
  1. Old_sm0key

    Derive the energy required for an ideal refrigerator

    Sep 29, 2016 at 8:35 AM

    11

    0
    Replies: 11
  2. moenste

    Resistance of the resistor and of the diode

    Sep 29, 2016 at 8:23 AM

    6

    3
    Replies: 6
  3. rihitz

    Balance force equations

    Sep 29, 2016 at 8:15 AM

    3

    0
    Replies: 3
  4. moenste

    DC milliammeter as a voltmeter

    Sep 29, 2016 at 8:12 AM

    0

    0
    Replies: 0
  5. Jan-Erich Sacken

    Really tough problem

    Sep 29, 2016 at 8:11 AM

    1

    0
    Replies: 1
  6. Sunbodi

    Percentage of Original KE that is Convertible

    Sep 29, 2016 at 8:07 AM

    5

    0
    Replies: 5
  7. moenste

    Current through ammeter with two batteries

    Sep 29, 2016 at 7:48 AM

    0

    0
    Replies: 0
  8. Olive1923

    Dropping Beads and their velocity?

    Sep 29, 2016 at 7:41 AM

    2

    0
    Replies: 2
  9. Sudo

    Rocket with variable mass, how do you solve for ratio of weight of fuel and weight of rocket?

    Sep 29, 2016 at 7:03 AM

    3

    0
    Replies: 3
  10. rihitz

    Force equations: Force on ground by angled supports

    ... 2
    Sep 29, 2016 at 6:22 AM

    21

    1
    Replies: 21
  11. elf197320501

    Tension and velocity problem

    Sep 29, 2016 at 6:12 AM

    3

    0
    Replies: 3
  12. ChrisBrandsborg

    Rotational motion: playground spinning disk problem

    ... 3
    Sep 29, 2016 at 4:47 AM

    54

    1
    Replies: 54
  13. hamza2095

    Relative motion question

    Sep 29, 2016 at 3:09 AM

    2

    0
    Replies: 2
  14. Mr Davis 97

    Rope on table

    Sep 29, 2016 at 2:55 AM

    2

    0
    Replies: 2
  15. horsedeg

    Need help understanding this concept regarding melting ice

    Sep 29, 2016 at 2:48 AM

    5

    0
    Replies: 5
  16. vosteven

    The work needed to move a mass of 5.41 kg 39.5 m

    Sep 29, 2016 at 1:51 AM

    3

    0
    Replies: 3
  17. fyeah_iamkat

    Projectile - Speed and angle for football just clearing goalposts

    Sep 29, 2016 at 1:25 AM

    1

    0
    Replies: 1
  18. Kevovo

    Simple Newton's Law Situations

    Sep 29, 2016 at 1:23 AM

    13

    0
    Replies: 13
  19. Karol

    Masses and combined pulleys

    Sep 28, 2016 at 11:09 PM

    15

    2
    Replies: 15
  20. Mohamed Drahaman

    How long until she passes you?

    Sep 28, 2016 at 9:24 PM

    10

    2
    Replies: 10
  21. Mr Davis 97

    Acrobat and monkey

    Sep 28, 2016 at 8:41 PM

    3

    0
    Replies: 3
  22. Vitani11

    P= F(t) • V(t) vs P = F • V to find power done

    Sep 28, 2016 at 8:35 PM

    2

    1
    Replies: 2
  23. courtneywatson13

    Energy for Linear 1D Systems - 1D potential

    Sep 28, 2016 at 8:12 PM

    4

    0
    Replies: 4
  24. Oannes

    Finding the Value of Gravity Given Height and Velocity

    Sep 28, 2016 at 7:59 PM

    9

    0
    Replies: 9
  25. peter010

    the actual force on the ground from a falling body's impact

    Sep 28, 2016 at 6:08 PM

    18

    8
    Replies: 18
  26. radaway

    moments and force variant

    Sep 28, 2016 at 5:44 PM

    1

    0
    Replies: 1
  27. Kunhee

    Lorentz Transformation Question

    Sep 28, 2016 at 5:05 PM

    1

    0
    Replies: 1
  28. teatime95

    A falling stone takes 0.28 s to travel past a window 2.2 m..

    Sep 28, 2016 at 4:47 PM

    4

    0
    Replies: 4
  29. radaway

    moments and force -- Forces on a cantilever hole punch

    Sep 28, 2016 at 4:43 PM

    5

    0
    Replies: 5
  30. ExaltedProphecy

    Help with acceleration problem

    Sep 28, 2016 at 4:21 PM

    11

    1
    Replies: 11
  31. Kunhee

    Lorentz Transformation, Time Dilation, Length Contraction

    Sep 28, 2016 at 4:20 PM

    11

    1
    Replies: 11
  32. Robb

    coplanar force systems

    Sep 28, 2016 at 4:20 PM

    9

    0
    Replies: 9
  33. 1729

    Coulomb resultant forces

    Sep 28, 2016 at 1:45 PM

    9

    1
    Replies: 9
  34. joshua cruwys

    examine the circuit and answer the questions grade 11 physics

    Sep 28, 2016 at 1:16 PM

    3

    0
    Replies: 3
  35. moenste

    Find current and PD across a circuit with diodes

    Sep 28, 2016 at 10:18 AM

    13

    6
    Replies: 13
  36. moenste

    Calculate the voltmeter reading

    Sep 28, 2016 at 8:52 AM

    3

    2
    Replies: 3
  37. Pavoo

    X-rays: trouble understanding

    N/A

    –
    Replies: –
  38. MPat

    Conservation laws in rotational movement

    Sep 28, 2016 at 5:02 AM

    5

    0
    Replies: 5
  39. jbumbes

    Find mass per unit length of a string graphically

    Sep 28, 2016 at 4:21 AM

    5

    0
    Replies: 5
  40. Mr Davis 97

    Rocket sled

    ... 2
    Sep 28, 2016 at 4:04 AM

    23

    1
    Replies: 23
  41. Mr Davis 97

    Reflected particle stream

    Sep 28, 2016 at 2:17 AM

    6

    1
    Replies: 6
  42. OmegaKV

    Solve the differential equation F=F0+kv

    Sep 28, 2016 at 1:53 AM

    5

    1
    Replies: 5
  43. Dan350

    Modern Physics question -- an atom ejecting a relativistic electron

    Sep 28, 2016 at 1:33 AM

    3

    0
    Replies: 3
  44. NkaujHelp

    Is it possible for opposite charges to repel each other?

    Sep 27, 2016 at 8:43 PM

    7

    1
    Replies: 7
  45. emily081715

    what's the inertia of cart A?

    ... 3
    Sep 27, 2016 at 8:11 PM

    43

    0
    Replies: 43
  46. Rafa54G2

    Tower Crane Forces

    Sep 27, 2016 at 7:24 PM

    13

    0
    Replies: 13
  47. joshua cruwys

    examine the following circuit and complete the table

    Sep 27, 2016 at 5:26 PM

    2

    0
    Replies: 2
  48. TheSodesa

    Maximum change in the kinetic energy of a particle

    ... 2
    Sep 27, 2016 at 5:25 PM

    23

    0
    Replies: 23
  49. Kpgabriel

    mass and atoms

    Sep 27, 2016 at 4:23 PM

    16

    0
    Replies: 16
  50. Viraj Vasantla

    Forces on abseiling rock climber: find vertical reaction force

    Sep 27, 2016 at 3:04 PM

    4

    0
    Replies: 4
  51. Googlu02

    Minimum velocity required by grasshopper

    Sep 27, 2016 at 2:51 PM

    19

    2
    Replies: 19
  52. jjkim623

    Momentum and Inertial Reference Frame

    Sep 27, 2016 at 1:48 PM

    1

    0
    Replies: 1
  53. brandonmm1

    total heat flow question

    Sep 27, 2016 at 10:47 AM

    3

    0
    Replies: 3
  54. Derek1997

    Bernoulli's equation and water exit speed from tank opening

    ... 2
    Sep 27, 2016 at 10:23 AM

    29

    9
    Replies: 29
  55. moenste

    Resistance of a network between two points

    Sep 27, 2016 at 9:40 AM

    11

    6
    Replies: 11
  56. songoku

    Charge on Parallel Plates

    Sep 27, 2016 at 9:10 AM

    12

    5
    Replies: 12
  57. emily081715

    Momentum problem: 2 carts, finding initial speed

    Sep 27, 2016 at 8:34 AM

    13

    0
    Replies: 13
  58. Mr Davis 97

    Force on a fire truck

    Sep 27, 2016 at 8:09 AM

    5

    0
    Replies: 5
  59. Mr Davis 97

    Impulse on jumper

    Sep 27, 2016 at 7:59 AM

    9

    1
    Replies: 9
  60. Hans Herland

    Identifying forces in a friction problem

    Sep 27, 2016 at 7:33 AM

    8

    0
    Replies: 8
  61. Touran Khan

    Simple constant acceleration/equation of motion question

    Sep 27, 2016 at 6:45 AM

    6

    1
    Replies: 6
  62. student34

    How can I find the critical mu of friction?

    ... 2
    Sep 27, 2016 at 4:09 AM

    32

    0
    Replies: 32
  63. decentfellow

    Maximum compression in the spring

    Sep 27, 2016 at 2:53 AM

    7

    0
    Replies: 7
  64. Virsis

    Max Jumping Height in Elevator Descending at Constant Vel.

    Sep 26, 2016 at 9:44 PM

    1

    1
    Replies: 1
  65. Canada95

    Mass-Spring System Equation

    Sep 26, 2016 at 9:11 PM

    11

    0
    Replies: 11
  66. Elvis 123456789

    How can I be sure of my numerical result?

    Sep 26, 2016 at 9:01 PM

    7

    1
    Replies: 7
  67. NkaujHelp

    Finding the velocity of two charges

    Sep 26, 2016 at 4:52 PM

    1

    0
    Replies: 1
  68. NkaujHelp

    Finding the Electric field at the Origin

    Sep 26, 2016 at 4:36 PM

    1

    0
    Replies: 1
  69. dykuma

    Surface Brightness at any angle

    Sep 26, 2016 at 3:41 PM

    3

    0
    Replies: 3
  70. space-time

    Two capacitors in parallel: potential difference/energy

    Sep 26, 2016 at 2:11 PM

    5

    0
    Replies: 5
  71. grandpa2390

    problem of compression

    Sep 26, 2016 at 1:53 PM

    1

    0
    Replies: 1
  72. emily081715

    ratios of inertia

    Sep 26, 2016 at 1:52 PM

    8

    0
    Replies: 8
  73. Joker93

    Heat capacity under constant pressure or volume question

    ... 4
    Sep 26, 2016 at 1:40 PM

    61

    2
    Replies: 61
  74. givemeknowledge

    Finding frequencies and wavelengths

    Sep 26, 2016 at 12:43 PM

    2

    1
    Replies: 2
  75. ooohffff

    Torque and work of dipole

    Sep 26, 2016 at 12:40 PM

    11

    2
    Replies: 11
  76. natsuki91xp

    Does displacement=shortest length of position (final-initial)?

    Sep 26, 2016 at 11:11 AM

    10

    4
    Replies: 10
  77. moenste

    Point between two wires at which the flux density is zero

    Sep 26, 2016 at 10:42 AM

    4

    2
    Replies: 4
  78. emily081715

    algebraic expressions for the amount of time that elapses

    Sep 26, 2016 at 10:38 AM

    2

    0
    Replies: 2
  79. ooohffff

    Final charge on capacitor

    Sep 26, 2016 at 10:27 AM

    3

    0
    Replies: 3
  80. emily081715

    magnitude of the change in momentum equation

    Sep 26, 2016 at 9:46 AM

    13

    0
    Replies: 13
  81. grandpa2390

    Why does Water Vapor have 12 degrees of freedom?

    Sep 26, 2016 at 9:22 AM

    9

    3
    Replies: 9
  82. moenste

    Mass of steam condensed

    ... 2
    Sep 26, 2016 at 9:00 AM

    33

    17
    Replies: 33
  83. Derek1997

    Calculate the pressure?

    Sep 26, 2016 at 7:53 AM

    17

    1
    Replies: 17
  84. floyd0117

    Initial velocity to get from on known position to another?

    Sep 26, 2016 at 3:56 AM

    2

    0
    Replies: 2
  85. Derek1997

    Calculation of atmospheric presure

    Sep 26, 2016 at 3:41 AM

    9

    2
    Replies: 9
  86. Zheng_

    What is magnetic field made up of?

    Sep 26, 2016 at 12:44 AM

    8

    3
    Replies: 8
  87. Diego Rolim Porto

    Eletric Field of a Ring

    Sep 26, 2016 at 12:16 AM

    1

    0
    Replies: 1
  88. Ryan1983

    Acceleration vs. Time graph confusion

    Sep 25, 2016 at 11:45 PM

    1

    0
    Replies: 1
  89. Zheng_

    What does magnetic field is made up of?

    Sep 25, 2016 at 11:35 PM

    1

    0
    Replies: 1
  90. novelriver

    Resistance for an incomplete circuit

    Sep 25, 2016 at 11:28 PM

    2

    0
    Replies: 2
  91. emily081715

    inelastic collision: final velocity after collision

    Sep 25, 2016 at 10:59 PM

    5

    0
    Replies: 5
  92. RED119

    Force to voltage question

    Sep 25, 2016 at 10:27 PM

    3

    0
    Replies: 3
  93. Cosmik11

    postion vs time graph without time or initial speed?

    Sep 25, 2016 at 10:03 PM

    3

    0
    Replies: 3
  94. DumSpiroSpero

    Work and Mechanical Energy

    Sep 25, 2016 at 9:41 PM

    6

    1
    Replies: 6
  95. PhysicsInNJ

    Relativistic Energy and Velocity

    Sep 25, 2016 at 9:16 PM

    2

    2
    Replies: 2
  96. Elvis 123456789

    write a computer program to solve for time of a falling body

    Sep 25, 2016 at 8:39 PM

    5

    0
    Replies: 5
  97. Zablas

    Average speed of the cyclist

    Sep 25, 2016 at 8:31 PM

    10

    1
    Replies: 10
  98. tensor0910

    Solve for friction coefficient of block on sp

    Sep 25, 2016 at 8:27 PM

    1

    0
    Replies: 1
  99. Titan97

    probability of finding a particle in an infinite well

    Sep 25, 2016 at 7:25 PM

    1

    0
    Replies: 1
  100. ChloeYip

    Seat position in plane

    Sep 25, 2016 at 6:44 PM

    9

    1
    Replies: 9
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