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.
Elephant Seal's Displacement: 635m Down, 590m East
  • shawonna23
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Physics problem: (speed of a point on earth)
  • lmf22
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3
Time Uncertainty: Pulsar Rotation & Atomic Clocks
  • GingerBread27
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Solve Kinematics Problem: High Speed Train & Locomotive
  • Nenad
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Quick question regarding gauss' law
  • jimithing
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How much energy does the kettle transfer?
  • Christopher
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4
Physics question (kinetic energy) to all that apply
  • airkapp
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Comparison of Physics Programs in Belarus & Ukraine
  • < Ali >
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3
How do I find the distance between two trains heading towards each other?
  • Omid
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4
Help Needed for Grade 11 Physics Assignment & Interference Pattern Question
  • antiflag403
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Build a full size chair out of newspaper and masking tape
  • msadair40
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Solving Car's 2 Braking Times Problem - Physics Help
  • phipps66
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Finding A's Components: Non Graphical Solutions
  • Dorita
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3
Find the power an electric motor
  • Monsu
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2
Solving Physics Problems - Aiming a Gun at a Target
  • lmf22
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3
How Do You Calculate Vector Distances on a Checkerboard?
  • BlackMamba
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Solving F(x) for x=9: Defining g(x) - Joe
  • cowgiljl
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2
How Does Acceleration Affect Speed Skater's Velocity on Rough Ice?
  • slcaha2
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Calculating Net Force on a Charge Near an Infinite Grounded Conductor
  • quantumworld
  • · Replies 11 ·
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Physics plane/wind speed problem
  • lmf22
  • · Replies 2 ·
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2
Solve Kinematics (3 in 1) Problems with Omid
  • Omid
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2
Cliff Height Calculation: Rock Drop & Sound Travel
  • monkeyboy726
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Beautiful Sunset Painting by Artist
  • nomi
  • · Replies 6 ·
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Rearranging an equation for pressure
  • Katpea
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3
Proving Triangle with 90° Angle: Length of Hypotenuse Segment
  • juef
  • · Replies 8 ·
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The Toppling of a transmitter mast
  • elivian
  • · Replies 6 ·
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6
Vectors II Return of the Problem
  • ppacc
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Politician probablity help
  • rdn98
  • · Replies 2 ·
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2
Find when 2x^3+x-5 is equal to zero
  • UrbanXrisis
  • · Replies 2 ·
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2
Calculate Horizontal Distance for 12.0g Steel Ball, 32 Degrees
  • cruelty_free
  • · Replies 3 ·
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3
Please help a girl who doesnt understand physics
  • alonzo
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2
How to Solve for r in the Equation P = (2pG/3)p^2r^2
  • james11
  • · Replies 6 ·
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Target Practice: Calculating Bullets & Angles for 200m Range
  • physicsss
  • · Replies 6 ·
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6
Calculating Percent Uncertainty for Volume of a Beach Ball
  • Melissa
  • · Replies 3 ·
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3
Calculating Helium Balloon Volume for 500 kg Payload
  • nsw
  • · Replies 11 ·
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11
How Do You Determine the Supply Equation Given Market Conditions?
  • wmosley
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How Do You Determine the Supply Equation for a Commodity?
  • wmosley
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Velocity and Acceleration of a particle
  • cougar_21
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Deriving the 2nd Equation on Wave Longitudinal Velocity
  • dibilo
  • · Replies 3 ·
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Calculating Time and Distance for Two Soccer Players Colliding from Rest
  • BlackMamba
  • · Replies 7 ·
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Finding the domain without a calculator
  • UrbanXrisis
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Runner B's Catch-Up Time & Distance to Runner A | Speed Calculations
  • phywhat
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Solving for Raft Speed in a Free Fall Problem | Bridge, Stone, and River Math
  • BlackMamba
  • · Replies 9 ·
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9
Designing the Perfect Egg Drop Package: Tips and Tricks for the Competition
  • nautica
  • · Replies 9 ·
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9
What is the average speed the runner must travel to catch the ball?
  • BlackMamba
  • · Replies 21 ·
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Relative Velocity: Solving Airplane Vector Problem
  • psuedomonas
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Solve Calculus Problem: f'(x)g'(x) = xf'(x)+f(x) | 10th Fri
  • unrealplayer
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2
What is the wind velocity in km/h and what angle it it north of east?
  • physicsss
  • · Replies 9 ·
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Can Anyone Help with These Twisted Vector Problems?
  • ppacc
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Thermal expansion and a pendulum clock
  • jealey
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How to Find Scalars and Unit Vectors from Given Vectors?
  • Amil
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Calculating Vectors: Help Needed for Test - Pamela
  • ppacc
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Maximizing Efficiency: Rearranging Formulas for Quick Calculations
  • faisal
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Limits (one algebreic, two Trig)
  • Alethia
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Relative Velocity of Ship A to Ship B: Magnitude and Time
  • Clari
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Another Calc2/diff eq integral problem
  • kdinser
  • · Replies 4 ·
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Why Does My Force Calculation Differ From the Book?
  • Gmaximus
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How Do You Calculate Wave Frequency and Timing in Physics Problems?
  • puregoodboi
  • · Replies 9 ·
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Dazed in College: Understanding Dimensional Analysis & Metric Units
  • chewbocka
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Is 1.2A the Correct Current Value in This Circuit Problem?
  • tinhnho
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OK Help me out guyz i'm a gr 10 student in gr 11 pHysics yea i know nice move
  • puregoodboi
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Integral S (-sin(t))* exp(cos^3(t)) dt
  • ori
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What is the displacement of the car from the point of origin
  • TriumphDog1
  • · Replies 12 ·
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Kinematics - Acceleration and deceleration
  • lotusbloom
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Why Does a Conducting Shell Show Zero Electric Flux Despite an Internal Charge?
  • JamesL
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Gravity of Moon & Roller Coaster Proof Help
  • Klinger
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Is the slope of the curve the acceleration?
  • Omid
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Calculus problem (electric circuit)
  • Cyannaca
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Volume to Mass Conversion Problem
  • Amil
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Calculating Acceleration of Locust Jumping 4 cm
  • Omid
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Calculate the x- and y-components of the net electric field
  • masamune
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Power Rating of 570 W Heaters in Series: 1140 W
  • GreenDinos
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How long does it take for the canister to empty?
  • Kelju Ivan
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Calculating Freefall Time: Solving for t in a Ball's Descent
  • motionman04
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How do extremes of a variable affect an equation?
  • Omid
  • · Replies 3 ·
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How Does a Rocket's Average Speed Compare to Its Final Speed as It Burns Fuel?
  • Omid
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Displacement Vector of Minute Hand: 8-8:20 & 8-9:00 a.m.
  • quick
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Domain and Range of (f.g)(x) & (f/g)(x)
  • sjaguar13
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Projectile Motion Leap Question
  • umkat
  • · Replies 13 ·
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How can I solve this tricky integral involving a radical and trig substitution?
  • krusty the clown
  • · Replies 5 ·
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Solve 1-D Kinematics Problem: Baseball Pitcher's Acceleration
  • mgiddy911
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How to Find Total Equivalent Resistance in Complex Circuits?
  • Juntao
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Determine velocity of falling object after certain time
  • soccerjayl
  • · Replies 18 ·
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Proving Continuity for Two Functions: x+2x^3 and (2x+3)/(x-2)
  • EngTechno
  • · Replies 2 ·
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Counting Question: 110 Counts in 1 Min - Probability (.15)
  • quantumworld
  • · Replies 2 ·
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Vertical Height Between Two Climbers
  • Doug Desatnik
  • · Replies 2 ·
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Solve June Car Sales Problem: Air Con, Power Steering, Auto Trans
  • wmosley
  • · Replies 5 ·
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How can I solve this triple integral using spherical coordinates?
  • ori
  • · Replies 2 ·
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How Is the Angle of Displacement Calculated in Vector Travel?
  • GingerBread27
  • · Replies 7 ·
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Physics HELP distances, velocity formulas
  • elyrly
  • · Replies 2 ·
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What Is the Range of the Quadratic Form f(x,y) = Ax^2 + 2Bxy + Cy^2?
  • Khan
  • · Replies 11 ·
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Stressed-out girl needs help w/ physics
  • elizabethg
  • · Replies 5 ·
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Coulomb's Law: forces between charges
  • ACLerok
  • · Replies 3 ·
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Find the magnitude of the velocity of the canoe relative to the river
  • EaGlE
  • · Replies 5 ·
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Master Converting Metric Units in Scientific Notation: Learn the Simple Method!
  • Imparcticle
  • · Replies 5 ·
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Easy physics problem, finding forumula
  • rdn98
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Solve 2.00 & 4.60µF Capacitors Voltage: Help Needed
  • ncsuwx
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What is the center of circular path?
  • GingerBread27
  • · Replies 10 ·
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Help on a problem with multiple parts, please
  • keeper54
  • · Replies 22 ·
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How Does Electrode Separation Affect Spark Plug Efficiency?
  • rosely
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