Introductory Physics Homework Help Forum

Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.

Threads

What Is Julie's Average Speed to and from Grandmother's House?

  • oldunion
  • · Replies 4 ·
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4

Physics average velocity problem

  • oldunion
  • · Replies 7 ·
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7

What Is the Difference Between Mathematical and Physical Vector Spaces?

  • madiha_314
  • · Replies 2 ·
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2

Calc Question: Finding Secant Slope?

  • sjaguar13
  • · Replies 3 ·
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3

Interpret Hexadecimal Dump in Computer Science

  • ProBasket
  • · Replies 4 ·
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4

Finding Speed & Momentum of a Moving Particle with Double Rest Mass

  • hype_chicky
  • · Replies 3 ·
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3

Physics dimensions of acceleration question

  • ProBasket
  • · Replies 5 ·
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5

Convergence and Monotonicity in Limits Verification

  • courtrigrad
  • · Replies 2 ·
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2

What are some potential research questions for an IB Extended Essay in Physics?

  • Quantum_Prodegy
  • · Replies 7 ·
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7

The Cauchy-Schwarz inequality for real numbers

  • Townsend
  • · Replies 16 ·
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16

Solving the Monkey-Zookeeper Problem: Minimum Velocity Needed

  • ziddy83
  • · Replies 5 ·
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5

Leap River: Solve for Initial Velocity w/o Air Resistance

  • ziddy83
  • · Replies 3 ·
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3

Proof of Limit: Solving for the Limit of a Sequence with Proof Techniques

  • courtrigrad
  • · Replies 13 ·
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13

Relativity Problem: Find Speed & Momentum

  • aptiva
  • · Replies 3 ·
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3

Can't figure out where to go with this (Centripital Acceleration)

  • Kira
  • · Replies 3 ·
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3

Electric Field/Oscillation Problem

  • barnsworth
  • · Replies 2 ·
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2

How far has the proton been deflected?

  • Heart
  • · Replies 5 ·
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5

Frequency and wavelength of a wave

  • Shay10825
  • · Replies 20 ·
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20

Find the max altitude reached by the rocket

  • hurdler017
  • · Replies 16 ·
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16

Rotational Motion of a disc of mass

  • PhysicsNewb
  • · Replies 5 ·
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5

Solving a Hallway Reflection Problem

  • swatikiss
  • · Replies 2 ·
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2

Electric field of two charges on an axis bisecting them

  • Heart
  • · Replies 4 ·
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4

Solving the Spool's Acceleration with a Constant Force

  • thenewbosco
  • · Replies 3 ·
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3

Do Smaller Tires Increase Traction on Wet Roads?

  • Dlevy
  • · Replies 2 ·
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2

Find the area of the resulting slick homework

  • dg_5021
  • · Replies 10 ·
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10

How Do You Convert Old English Length Measures to Modern Units?

  • AtlBraves
  • · Replies 2 ·
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2

Show that the force applied by each rope

  • Gughanath
  • · Replies 3 ·
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3
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7
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15

Save'm Star's related Questions Help Pz

  • mathaTon
  • · Replies 4 ·
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4

Revising for Exam: Questions on Pendulum Clocks & Barometers

  • fasterthanjoao
  • · Replies 3 ·
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3

Integrate f(t)f'(t) on [a,b] and Show 1/2[f''(b)-f''(a)]

  • trap
  • · Replies 5 ·
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5

How can I graph the pendulum function without knowing the constants?

  • No Name Required
  • · Replies 2 ·
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2

Help with solving logarhythm problems

  • wasteofo2
  • · Replies 4 ·
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4

Question about complex solutions to DiffEqns

  • Theelectricchild
  • · Replies 9 ·
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9

How Many Logs Are Needed to Build a Raft for Four People?

  • linemanpete
  • · Replies 4 ·
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4

Find Radius to Calculate Mass of Moon

  • ucdawg12
  • · Replies 4 ·
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4

Anyone Know How To Use This Data To Classify A Star From 0 - M?

  • hype_chicky
  • · Replies 2 ·
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2

Air Bubble Volume at Water Surface

  • PRINCESS NOOR
  • · Replies 2 ·
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2

Uncertainty Calculation for a Complex Formula with Known Errors

  • JamesJames
  • · Replies 2 ·
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2

Proving the definition of abs. value

  • cmurphy
  • · Replies 2 ·
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2

Why Are Logic Gates Essential in Computing?

  • courtrigrad
  • · Replies 2 ·
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2

Fundamental Theorem of Calculus

  • ProBasket
  • · Replies 3 ·
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3

Finding Unit Vectors for Angle of pi/3 in R3

  • gunnar
  • · Replies 4 ·
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4

How Do You Calculate the Error on Variables in an Equation?

  • Exulus
  • · Replies 10 ·
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10

Find the exact value of tan 285 deg + cos 75 deg + cot 60 deg

  • markm
  • · Replies 4 ·
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4

Can you use momentum conservation to support your friend's case in court?

  • Gregory
  • · Replies 3 ·
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3

How Do You Convert a Transformed Function into Standard Form?

  • aisha
  • · Replies 4 ·
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4

Calculate the Height of a High Rise Building with Trig Word Problem

  • aisha
  • · Replies 9 ·
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9

EN to the parallel axis theorem.

  • thenewbosco
  • · Replies 2 ·
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2

Antoine L'Hôspital's rule problem

  • dextercioby
  • · Replies 10 ·
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10

Need help using Coulomb's Law to find unkown charge

  • azsktbrdr
  • · Replies 2 ·
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2

How to Input a Unit Vector Between X and Y Axes in Mastering Physics

  • Heart
  • · Replies 6 ·
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6

Why did Mexico seek independence from Spain?

  • ConcealedDreamer
  • · Replies 2 ·
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2

How Does Wind Speed Affect Voltage in a DIY Anemometer-Generator?

  • protox
  • · Replies 2 ·
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2
  • Poll Poll

The max. distance of fall of the bungee jumper?

  • Esta
  • · Replies 2 ·
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2

How to Solve a Tricky Exponential Equation

  • ProBasket
  • · Replies 3 ·
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3

Sound wave and a light wave that pass through a piece of plastic

  • lotsoluv4ya
  • · Replies 2 ·
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2

Some special consequences from the limits of e: need a little help

  • maxpayne_lhp
  • · Replies 18 ·
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18
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4

Solving F=GmM/r^2 for r: What's Next?

  • igore
  • · Replies 4 ·
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4
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13

Minimum Speed for Cliff Diving to Avoid Ledge: What Equation to Use?

  • ziddy83
  • · Replies 2 ·
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2

Horizontal Distance of Cannon Fired at 30 Degrees: 85,000m

  • ucdawg12
  • · Replies 2 ·
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2

Solve Projectile Problem: Calculate Impact Speed & Angle

  • Mo
  • · Replies 6 ·
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6

What is the effective resistance in this circuit with two shorts?

  • EvLer
  • · Replies 3 ·
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3

Finding Limits of Sequences: How to Determine N Values for Given Conditions

  • courtrigrad
  • · Replies 8 ·
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8

Sum convergence - is my approach flawless?

  • twoflower
  • · Replies 5 ·
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5

Solve Rotational Motion: Show Tension = 1/3 Disk Weight

  • thenewbosco
  • · Replies 2 ·
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2

How Much Will the Beam Deflect?

  • chelzey75
  • · Replies 3 ·
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3

Why does sunlight reflect off surfaces in many different directions?

  • lotsoluv4ya
  • · Replies 2 ·
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2

My Crazy math teacher says this is solvable

  • The Divine Zephyr
  • · Replies 4 ·
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4

Covariance of the Wave Equation in Modern Physics: A Proof

  • mike217
  • · Replies 3 ·
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3

Investigating Wave Speed in Water: Uncovering the Theory

  • Amber
  • · Replies 2 ·
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2

Whirling a Ball on a String: Vmin & Vmax Explained

  • PhysKid24
  • · Replies 2 ·
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2

Starting on elastic collisions

  • Coldie
  • · Replies 12 ·
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12

Vector Calculus: Solve Chain Weight Problem - 25 N, 37°

  • janedoe75
  • · Replies 13 ·
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13

Coulomb's Law of two copper spheres

  • eil2001
  • · Replies 6 ·
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6

Force: Help with Dilemma of Containers and Water Mass!

  • Azeri
  • · Replies 23 ·
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23

Where does energy come from when a helium balloon rises?

  • Omid
  • · Replies 3 ·
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3

A question about friction, thanks~

  • ThomasJoe40
  • · Replies 4 ·
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4
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3

Solving the Elevator Problem: Weight, Speed & Acceleration

  • khf
  • · Replies 2 ·
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2

What is the area of the gold leaf and the length of the gold fiber?

  • digink
  • · Replies 8 ·
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8

Soup Can Race: Investigating the Physics Behind It

  • marko_tomas13
  • · Replies 9 ·
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9

Questioning photoelectric effect theory

  • moonman
  • · Replies 2 ·
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2

Kinematics of pumpkin shot out of air cannon

  • tb.MSU
  • · Replies 4 ·
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4

The Speed of Sound (Trick Question?)

  • bbfcfm2000
  • · Replies 11 ·
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11
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6

Two distinguishable particles space-spin wavefunctions

  • yxgao
  • · Replies 2 ·
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2

Induced Magnetic Field in Dielectric

  • Hypnotoad
  • · Replies 2 ·
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2

Electric field intensity for a uniformly charged wire.

  • phy
  • · Replies 2 ·
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2

Radius of Gyration: Calculate 0.5m Sides & 0.8m Tip-Tip

  • theoriginalh
  • · Replies 2 ·
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2

Why Does the Limit of Sine at Infinity Confuse Mathematicians?

  • twoflower
  • · Replies 42 ·
2
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42

Solving Liquid Problems: Calculating Forces and Height Differences

  • Jacob87411
  • · Replies 2 ·
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2
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3

Total charge of e in a given volume of water

  • Bailey
  • · Replies 15 ·
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15

Find Chemistry/Biochemistry Articles for Analysis: Tips & Resources

  • Dooh
  • · Replies 5 ·
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5

Calculating Electron Speed After Release from Rest

  • evilempire
  • · Replies 4 ·
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4

Estimate the area under the graph of f(x) =x^2 + 4x from x=1 to x=9

  • ProBasket
  • · Replies 2 ·
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2