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.
How Does the Doppler Effect Alter Perceived Train Whistle Frequencies?
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How Do I Calculate Electric Forces Between Charges?
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Special relativity and magnitude and direction of velocity
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How Does the Vis-Viva Equation Explain Orbital Speed Changes to Reach the Moon?
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Hooke's Law Problem Set with Word Problems
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Charge in circuit, capacitor - explaining current
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What is the formula for work and how can it be defined?
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Calculating the Radius of a Circle for Masses Attached by a Cord
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Calculating Voltage Across a Capacitor in a RC Circuit with Two Resistors
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Determination of Earths radius with known latitude and sun travel times
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Does Ohm's law hold true for materials with zero resistance?
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Is Force Definable with Given Velocity, Time, and Displacement Data?
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Help with Physics 11 Kinematics.
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HELPPPP working with mass and velocity
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Finding Points of Destructive Interference for Two In-Phase Speakers
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How Do You Calculate Current in a 10 Ohm Resistor Using Kirchhoff's Loop Rule?
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Kinetic Energy/work finding the distance
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Thermodynamic with inelastic collision
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Electric Field due to Solid Non-Conducting Cylinder
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Calculating Electric Potential on a Nonconducting Rod
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What is the Maximum Height of a Pendulum on the Right?
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Resistors in Series, in Parallel
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Find Radius of Circle for 2kg Mass and 4kg Mass
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Proving Ohm's Law between 2 circuits
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Inconsistent calculations with Hooke's Law/Elastic Potential Energy
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Expression for Electric Field Outside Sphere
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Solving Part A & B of a Circular Motion Homework Problem
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Total Charge on the Cylinder (Gauss' Law)
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Point Charge Check? Point Charge Check!
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How Do You Solve Newton's Third Law Homework Problems?
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Find current flowing through the wire
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Where to find AP Physics C: Mechanics material?
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Distance spring decompresses when friction is involved
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Is Slow Compression Speed Sufficient for Quasistatic Gas Compression?
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Potential energy of a spring and transverse motion
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Calculate Emf in a magnetic field
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Enthelpy change - Using tables to find specific heat
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Angular Momentum (pendulum) Help
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Car going around banked curve with no friction
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N/CWhat is the Electric Field Strength to Reduce String Tension to Zero?
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Electric potential energy finding velocities
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Joining two wires, magnetic fields and a little algebra
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Decay of a muon-probability of decay
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Does the Force Formula F=m x 10 N/kg Apply to Bodies at Rest or in Motion?
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Solved: Calculating Force Needed for Archimedes' Principle
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My Physics homework regarding energy/velocity?
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Cosmic microwave background fits the blackbody radiation spectrum
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How to calculate velocity with target 12 m away vertically and 6 m horizontally?
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Why does the recoiling nucleus have a smaller momentum than the alpha particle?
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Help a BioPhysics Student Ace Their Quiz!
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Finding the velocities of these segments?
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2 unit negative chargees and a positive charge +q are along the same
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Vector Addition Homework: Magnitude and Angle Calculations
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Force exerted by water on a tube
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Derivation of electric field for a dipole.
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Rotation of Rod Homework: Max Angle, Motion Analysis
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Calculating Electric Field Values for Point-Line Plate
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Find y-component of Electric Field
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Three light bulbs in parallel circuit and Currents
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Level 3 Forces Problem - Coefficient of Static Friction
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Two masses m1=5 kg and m2=9 kg are connected by a string which passes over
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Estimate the relationship between the maximum and minimum intensity
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Can You Help Me Understand Free-Body Diagrams and Forces in These Block Systems?
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Advanced physics problems on electric fields.
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What is the distance between station a and station b?
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Homework help (Force of friction)
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Missed my class and don't know how to even begin.
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AP Physics Electric Field Homework Problem
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Block in a verticle circle with friction
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What happens when 2 electrons collide?
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How to Calculate the Charge on Capacitor C5?
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Homework Question on resistors in series, in parallel
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Paralell Plate Capacitors and Dielectric
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Need Help with Neon Gas Volume and Temperature Problems?
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Work of kinetic friction on block in vertical circle
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Physics 2d kinematics, projectile motion
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How Do Voltages Distribute in an RC Circuit with Equal Resistors?
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Tension of ropes when laying on a hammock
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Calculating Leverage with Crates on Hydraulic Lifting Beam
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Maximum Magnetic Field B/w 2 Parallel Wires
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Capacitor, circuits and how much charge is transferred
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Centripetal Acceleration with distance
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Is the Reasoning Behind Electric Potential Energy Increase Correct?
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The coefficient of friction at a specific angle.
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Projectile Motion - find initial velocity, flight time and max height
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Why does the centripetal force subtract from total force toward center?
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A grandfather pulls his granddaughter, whose mass is 20.5 kg
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What Is the Ratio of Charges q2 to q1 Based on Their Electric Field Angles?
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Conceptual: bug masses on a rotating wheel
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General Physics (I) Kinetic energy and momentum
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How Long Until Bath Water Cools to 45C?
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Magnetic fields and the right hand grip rule
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Fields in Physics assignment question about electron beams in a cathoe ray tube
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Is the Phase-Space of a Bouncing Ball a Straight Line?
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Calculating potential on surface of sphere
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Given tension and acceleration determine max weight
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Where Do Emily and Grace's Bumper Cars Collide?
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Calculating Energy Lost in Gas Expansion
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Bowling ball rolling, going up a ramp, and continues rolling.
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Does Voltage at Point P Reflect Net Attraction Despite Equal Charges?
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