Introductory Physics Homework Help Forum

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Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
Counting Methods: Understanding 8-Bit String Patterns
  • ptex
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Help with Statics Problem | Shaun
  • spatel600
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8
How Do You Solve the Integral of (e^-2x) / (1+e^-x)?
  • philipc
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4
What is the thickness of the spacer?
  • jazzchan
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2
Analyzing Forces and Acceleration in a System of Connected Particles
  • mcintyre_ie
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3
How to Calculate the Width of Slits in a Diffraction Grating Experiment?
  • mrbling
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2
Railroad Car: Man's Weight Affects Velocity Change
  • skiboka33
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2
Fortran prog - flight traj of projectile
  • franKing
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6
What is the average pulling force?
  • kurtlau
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3
Coefficient of static friction of car
  • hyen84
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5
Defibrillator current physics problem
  • moonlit
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7
How Do Tension Changes Affect the Frequency of Violin Strings?
  • eku_girl83
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2
Understanding Angular Momentum Conservation in Rotating Bodies
  • ACLerok
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11
How Do You Solve These Kinematics Problems Involving Falling Objects?
  • Phantom8295
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9
Converging Integral: Finding a Value for C | Tricky Convergence Question
  • AngelofMusic
  • · Replies 6 ·
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6
A simple Rigid Bodies Question
  • AngelofMusic
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5
Help Needed: High School Math Test Decides My Future
  • Dagenais
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4
Algebra 2 natural logarithms problem
  • mustang
  • · Replies 6 ·
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6
Confusing gases, help with lab report needed
  • sickboy
  • · Replies 3 ·
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3
Chem+Physics: Solving the Piston Puzzle
  • prinzessin04
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2
How do I solve this challenging mechanic statics problem?
  • paul11273
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2
How to Solve Complex Algebra 2 Problems?
  • mustang
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2
What is the acceleration of a jojo falling down a string?
  • olympiad
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5
Solve 1st Law of Thermo P20.38: Net Work & Energy
  • maxpowers_00
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Solving motion of undamped harmonic oscillator
  • jlmac2001
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2
Tips for Writing a Scientific Paper for Submission: Can I Get a Link?
  • IooqXpooI
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2
Help with velocity vector and friction questions
  • wikidrox
  • · Replies 5 ·
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5
Force exerted by the floor on the feet of a student doing pushups
  • PhysicsPhun
  • · Replies 3 ·
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3
How Far Can a Mass Be Placed on a Bar Before the Supporting Wire Breaks?
  • PhysicsPhun
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2
Infinite sheet of chargejust on sigma stuff
  • rdn98
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3
Can A Painter Safely Stand on a Ladder?
  • PhysicsPhun
  • · Replies 9 ·
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9
Calculating Mean Distance Traveled by Pi-Mesons at Speed v=0.3c
  • EIRE2003
  • · Replies 7 ·
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7
Simple Harmonic Motion Question
  • NanoTech
  • · Replies 3 ·
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3
Composition of the 3 Pi-Meson Types
  • EIRE2003
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2
Mechanics Question of a wheel chair
  • EIRE2003
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3
Simple problem. Depth of well providing sound reaches you in 1.5 second.
  • new324
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2
Magnetic Fields and electron beam
  • moonlit
  • · Replies 19 ·
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Decreasing current in capacitors
  • UrbanXrisis
  • · Replies 3 ·
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3
Math Methods problem (Trig question)
  • Sombra
  • · Replies 3 ·
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3
Friction, energies and variable distance
  • Chen
  • · Replies 9 ·
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9
Solve Elevator Problem: Find Motor HP of 1000 kg Lift
  • KingNothing
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2
Find Capacitance from Graph of a Capacitor
  • UrbanXrisis
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3
Understanding the Impact of Atom Arrangement on Molecule Mass and Volume
  • SigInt
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2
Calculating Acceleration and Resistance in Motion: A Scientific Inquiry
  • wikidrox
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6
Ball in gravity: how high does the ball go? Initial velocity?
  • mayo2kett
  • · Replies 13 ·
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Angular Momentum -Opening a door with a bullet
  • Vickitty
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4
How Does a Moving Rod Affect Current in a Magnetic Field?
  • pattiecake
  • · Replies 2 ·
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Conservation of energy relativity problem
  • hibiscus23
  • · Replies 5 ·
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5
Solve Mechanical Physics Problems: Torque and Angular Velocity
  • Dingo Jellybean
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2
Is T a Linear Transformation from V to R1?
  • discoverer02
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2
Analyzing the Dynamics of a Cart Between Two Springs
  • Vickitty
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2
How do I solve for the area and volume of a cosinusoidal curve?
  • pig
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4
Name & Explain Trophic Level of Weasels & Stoats
  • garytse86
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2
Wave Velocity along X-Axis: 4m/s
  • Xamfy19
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2
How Do You Calculate Train Energy Dynamics and Power Output?
  • JamesL
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Cost-effective design for fencing and partitioning a rectangular ranch field?
  • mayo2kett
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3
How Fast Is the Suction Rate of a Gravity Type Coalescing Separator?
  • rohan_verma
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What are the steps for solving problems involving forces and energy?
  • KingNothing
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Which is a better coolant for a car: methanol or water?
  • Soaring Crane
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How to Find x + y When xy = 1,000 Without Using 10 as a Factor?
  • mustang
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To do with the Philosophy of Ethics
  • oranges and lemons
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Calculate Magnitude of Electrical Field | Electron Acceleration
  • UrbanXrisis
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Solving Interference and Diffraction Problems
  • tandoorichicken
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Finding the Sum of Two Numbers When Their Product is 1,000
  • mustang
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Solve Calc Homework: Optimization Problems | Help with v, Cost & Wages
  • prinzessin04
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3
Electric Field Calc: Determine Magnitude w/ Spreadsheets/Calculus
  • formulajoe
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Calculating Octagon Area from Perimeter of 72
  • Dagenais
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What is the Law of Balanced Forces?
  • wikidrox
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Are Electrons the Buckets or the Water?
  • holly
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Where Can I Learn Online Optimization Techniques for Calculus Problems?
  • prinzessin04
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How Does Friction Impact Motion on Slopes?
  • st3dent
  • · Replies 18 ·
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18
How Are Baseball and the Moon Connected?
  • Aurora Eveline Jai
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Steel Ball Collision: Calculating Velocity and Direction
  • 3.14159265358979
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Equilibrium giving me some trouble
  • mikeman19
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2
Compton Shift: Why are Both Incident & Scattered Wavelengths Present?
  • gnome
  • · Replies 10 ·
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10
Solve for Slowest Constant Speed to Catch a Train
  • jennypear
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3
How to Solve a Buoyancy Problem
  • new324
  • · Replies 6 ·
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6
Why Is My Calculation of Initial Velocity Incorrect in Projectile Motion?
  • jennypear
  • · Replies 6 ·
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6
How Is the Average Force Exerted by a Golf Club on a Ball Calculated?
  • MatrixGL
  • · Replies 8 ·
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How Does Gyroscopic Precession Relate to Torque and Angular Momentum?
  • cucumber
  • · Replies 3 ·
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Impulse-momentum theorem hmwk problem
  • profuse007
  • · Replies 2 ·
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Magnetic force between 3 straight wires
  • kiewelb
  • · Replies 2 ·
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Physics Revision: Evaluating Questions & Finding Formulas
  • math4me
  • · Replies 4 ·
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Calculating String Tensions in a Hanging Meter Stick
  • cuz937100
  • · Replies 13 ·
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Best College-level Physics Text?
  • sidm
  • · Replies 2 ·
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Learn Physics on Your Own: Calculus-Based Resources
  • GTdan
  • · Replies 9 ·
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9
Diffraction limit on resolution
  • mrbling
  • · Replies 4 ·
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4
Solving Frequency in Pipes - eku_girl
  • eku_girl83
  • · Replies 7 ·
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7
What do we call the work due to the change of velocity?
  • ninaricci
  • · Replies 5 ·
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Analyzing Simple Harmonic Motion in a Bifilar Pendulum Experiment
  • infinit
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Finding the Maximum Length of a .110 kg Remote
  • mr_octo
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What is the mass of the sphere?
  • lollypop
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Euler' s equations and tau = zero?
  • student1938
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Can a power series have an interval of convergence of (0,1] or (0,∞)?
  • maxpowers_00
  • · Replies 2 ·
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Help with Beam Physics Problem - Get the Answer Now!
  • SsUeSbIaEs
  • · Replies 2 ·
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Is There a Solution to This Differential Equation Problem?
  • Gunni
  • · Replies 4 ·
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Max Height to Jump Without Breaking Leg Bones
  • ussjt
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What is the best approach to solving this Statics problem?
  • faust9
  • · Replies 13 ·
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How to solve the equation 3^2x+1 = 3^x + 24, do I need logarithms
  • repugno
  • · Replies 10 ·
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:eek: standing waves where to begin
  • mayo2kett
  • · Replies 5 ·
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5