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 Do I Solve These Electromagnetism Multiple Choice Questions?
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Solving Cosmology Problem: Helium Ionization at Recombination
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Fatal Pressure in Car Crashes with Airbags & Seatbelts
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Forces on roller coaster doing a loop
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Linear Algebra Basics: True/False Questions and Rank Properties
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Calculate Entropy Change for 1.6kg Water at 34°C and 2.0kg Water at 58°C
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Eraser sliding down slope - Friction
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How Much Mass Must Be Thrown Out for a Hot Air Balloon to Ascend Properly?
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Proving Roots of f(x) with Odd n ≤ 3
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  • Poll Poll
Help Me Get My Simple Electric Motor Going!
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Evaluating the Limit of f(x,y) at (0,y')
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Proving the Annihilation of x^ke^{rx} by (D-r)^m
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Chemistry help: egg on a mountain.
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How do you draw electron dot diagrams for pentyne?
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Calculate Angular Acceleration of Rotating Door
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Calculate Height of Falling Stone: 2.2m Window in 0.28s
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Calculate the change in entropy of the system
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Centripetal and tangential acceleration
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Calculating Tension and Velocity of Falling Bucket | Physics Problem Solution
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Neutron star's angular velocity
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Designing an Alien for Saturn: 5 Special Features for Survival
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What is the net compression in Pascals?
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Can the Coefficient of Friction for Air Be Found for Building a Hovercraft?
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Question regarding Physics Principles
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Why Does My Ideal Gas Law Calculation Differ from the Textbook?
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Photoelectric effect and work functions
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Obtaining Energy from Stars: Grand Challenge
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How can I use Trigonometric substitution to evaluate this integral?
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Solve Water Displacement: General Chemistry Question
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Anyone know of good sites that teach you tricks to solving physics problems?
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Constructing a Unique Model Atom for a Science Project
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Derivative of Symmetric Tensor with Respect to a Component
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How to Calculate the Force on a Charge in an Equilateral Triangle?
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Find the Answer to the Ball's Velocity Puzzle
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Deriving the energy of a magnetic dipole in a magnetic field
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Temp Effects on Forward & Reverse Rate Constants
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What Is the Value of k in This Normal Distribution Problem?
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How Wide is the Potential Well When an Electron Emits a Photon?
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Calculating Amplitude of Electromagnetic Waves 100 km from Earth
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Closed: How to Cope During Difficult Times
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Probably a very easy length contraction problem
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Some specific questions about waves
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Mills Method of Inductive Inference
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How do I calculate electric field at a point due to two charges in xy plane?
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Calculate the work done accelerating a proton
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The Right Hand Rule: Direction of Ring Induced Current in Solenoid
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Inertia tensors (moment of inertia) code
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How Do You Calculate the Width of a Slit in Single Slit Diffraction?
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Proving Bijections: Q and Q x X
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Example Showing (A x B) U (X x Y) ≠ (A U X) x (B U Y)
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Dynamics - Unbalanced Force - Probably Very Easy
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How Do You Convert Volts to Joules for Calculating Electron Velocity?
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X-y components after a collision
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Elastic Potential Energy and SHM test
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Solving Impulse & Momentum Problems: Troubleshooting an Error
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Help with Moments Question Part II
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How Is Charge Distributed on a Conducting Shell with a Central Charge?
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What is the solution to the equation y''' + 4y'' + 4y'=0?
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Is this the general solution for the DE y''+4y' +20y=0 with initial conditions?
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What are the potential energy equations for this system?
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How Should Error Bars Be Placed in an Ohm's Law Lab Graph?
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Solving a Head-On Collision: Algebra Problem
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Analytic Geometry: Proving R Lies on Ellipse
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Finding G-Force & Pressure in Fluid Flow: Aluminium Sphere Case
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Calculus Questions: Help Solve 1.2m^3/min & 20km/h Challenges!
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How to write matrices as tensors
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What Do You Get When You Multiply the Next Two Numbers in This Sequence?
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How can the spacecraft's orbit be determined with no thrust from its engines?
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Understanding Forced Oscillations in a Stretched Wire
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How far does the catapult hurl the truck?
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Relative Motion and acceleration
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Rotating disk falling from string problem
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Finding the Slope of Staircases for Math Projects
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Voltage Question: Find Voltage Drop with 3.30A Draw
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What Causes the Curvature of Spacetime for Orbiting Bodies?
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Touble with acceleration/velocity problem
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Collisions- Simple Algebra Problem
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How to Optimize the Sum of Squares of Two Nonnegative Numbers with a Fixed Sum?
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How Does Physics Influence Cycling Performance?
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How Can C++ Be Used to Solve Differential Equations?
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Energy - the ability to do work
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How do I solve INT x sec^2x dx using integration by parts?
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Temperature is the measure of average kinetic energy of an object
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How to find angular momentum for spin 2 particle?
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Believe it or not, I am able to do a lot of this stuff without the board
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Calculating Wavelength in Water for Electromagnetic Radiation
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Fundamental Frequency and Musical Harmonics
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Are there any topics in physics that concerns fire?
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Does Zinc Tend to Lose Electrons When in Contact with Negatively Charged Metals?
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Calculating the Electric Potential Difference of a Helium Balloon
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Find the volume and temperature after the isobaric expansion
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Determining Power Output of Car with Anemometer
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How Does Damping Affect the Motion of a Mass on a Spring?
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Calculating Tension on a Swinging Rope: A Scientific Approach
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Conversion of electromagnetic units
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What Do You See Before a Swimmer Reaches the Critical Angle?
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How Can I Model Dice Behavior to Predict When Half Are Removed?
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Calculating Speed of Block-Spring Collision w/Kinetic Friction
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How can I solve this integral using substitution and integration by parts?
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Total energy, mass, and momentum.
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