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.
What Is the Pressure Amplitude of a Flute at Half the Distance?
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Vector Graphing Help: A+B & A-B
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Young's Experiment - (problem with equation)
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Adiabatic process btwn 2 containers
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Kirchoff's Laws, nodes and current
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Calculating Acceleration and Tension in a Pulley System
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What Is the Mass of a Particle in an Electric Field Problem?
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Inertial frame of reference help
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What is the correct method of finding the direction of a Vector
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Solving Harmonic Motion: Need Help Finding System's Energy
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Capacitive Network: Calculating Voltage between Two Capacitors
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Solving 3 Physics Problems with Neeraj
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How Does Centrifugal Force Affect Weight on a Curved Train Track?
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How much time will it take for a log to arrive from point A, to point B?
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What is the launch speed required for a skier to reach a height of 11.7 m
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Constant variables in projectiles
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Horizontal force with a crate at a 27 degree angle
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How Do F-t and F-d Graphs Relate to Momentum and Work Done?
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Little help with some simple Vector physics
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Head Fall Acceleration Question
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An interesting Rifleman Problem (Projectile Motion)
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How Do You Calculate the Moment of Inertia for a Rectangular Sheet of Steel?
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Finding Angle A in a Circular Arc: A Physics Trigonometry Problem
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What Is the Minimum Radius Needed to Paint on a Cube to Contain Light?
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Projectile motion of mini cannon ball
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Mechanics & Properties Of Matter
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Solving a Heat Transfer Problem with an Insulated Vessel and Fan-Induced Rupture
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How to Calculate Frictional Force and Time for a Bullet Penetrating Wood?
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Understanding the Difference Between \equiv and = in Math Notation
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Why Do Different Methods Give Different Answers to j \cdot {-j}?
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How do you calculate vector subtraction in physics?
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Help a highschooler with physics homework?
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Four different tensions on a cord with four different disks attached.
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Find Min Acceleration Experienced by Car Passengers on Elliptical Path
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How Do Iodine and Chloride Ions Interact in a Vacuum?
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AZING!Acceleration Through a Curve: How to Calculate and Understand It
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Problems with acceleration due to gravity, and terminal speed
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How Do You Convert French Decimal Time to Standard Time?
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How Do Tire Sizes Affect Car Speed at Constant RPM?
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Quick & Easy Problem: Pushing Box Up Ramp
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Projectile Motion Lab: Calculating Projectile Trajectory with a Slingshot
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One final problem involving electrical fields
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Help with ideas for physics coursework?
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Can someone help me with this problem. Two stones being thrown straight up
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Calculating Cable Length and Node Distance for Standing Electromagnetic Waves
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Polarisation and electromagnetic fields
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Perpendicular Force = No Speed Change
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Particle Movement w/o Knowing a or v
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The Mystery of Standing Waves: How Do Guitar Strings Produce Sound?
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Are There Limitations to Lenz's Law in Real-World Applications?
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Solving Transistor Problem: Find Voltage Across Base & Emitter
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Electric Forces and Electric Fields of a proton
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Unraveling the Mystery of Current: Expressing F in Seconds and Ohms
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Physics Test Prep: Calculating Velocities, Impulses & Frictional Forces
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Time needed to cross river - depends on flow of the water?
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What are the calculations for an electric field problem?
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Kinematics - Trains crossing eachother
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Magnetic Field Forces & Acceleration for 75.0 Proton Mass, 1 Proton Charge
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What makes a homework thread stand out as the best?
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Help with 2D Motion: Find Plane's Direction in a 95km/h Wind
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Rock climbing energy conservation
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Suburu WRX and a Honda Accord have collided at an intesection
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How Do You Calculate the Orbit Radii in Bohr's Model of the Hydrogen Atom?
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What Do You Need to Understand About Kinematics to Solve Collision Problems?
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Can a Rubber Band Replace a Steel Spring in Measuring Weight?
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Distance and Time: Dimensions of a & b
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Which container will drain first: one big hole or several small holes?
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Mastering Catch Problems: How to Solve Tricky Physics Questions with Ease
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Why Is the Net Force on Both Cars Zero Despite Different Speeds?
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After how long will the balls be at the same height?
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Freefall-Type Question: Solving for Ball Catching and Building Length
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How Can You Build the Best Kraft Dinner Overhang Structure?
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Forces & Motion: Calculating Avg Acceleration of Hockey Puck
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Accelration Help: Questions Answered
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Spherical Electric Field - displacing a nucleuo
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How to calculate the current in a discharge circuit after a certain time?
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Get Help with Vectors for New Physics Students
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The smallest coefficient of friction.
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How Do You Calculate the X-Coordinate in Circular Motion?
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Catching a Ball Thrown at 30 m/s: Solving the Physics Problem
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Beginner Physics Help - Questions & Solutions
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Projectile Motion Ball Calculation
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Problems with kinematics equations
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Calculating Buckle Height of Steel Railroad Rail at 25°C
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Help with Voltage & Current Converter Circuits
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Police Question: How Far Does a Speeder Get Before Being Overtaken?
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Understanding Vector Cross Product: Finding the Angle Between Two Vectors
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Solve Physics: Get Help With Homework Charge Transfer
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The Parallel Plate Capacitor and Gauss Law?
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Calculating String Tension for Hanging Picture (50N)
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How Does Gravity Affect a Dropped Fish's Motion?
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Find the Flow Rate: Water Pipe Down a Hill
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How Do You Calculate Electric Potential at Point P from a Uniformly Charged Rod?
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Question on relative motion and circular motion.
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Forces on an Inclined Plane Question
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: Planck/Einstein and death of the universe
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Understanding Simple Harmonic Motion: Contradicting Acceleration and Velocity
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Kinematics - Archer shooting arrow at apple
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How Long Does It Take a Stone to Fall 6 Meters?
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Calculating Forces on a Coasting Car: Newton's Laws and Air Drag Calculation
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