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 You Solve the Limit of (e^x * tan^-1 y) / y as (x, y) Approaches (0,0)?
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How Do You Minimize the Squared Distance to a Line Using Linear Algebra?
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Solving a Beam Question: 3000 kg, 6000 kg*m, Calculate Force & Tension
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Please do not post multiple times on the same topic.
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What is the Tension in a Hammock with a 150lb Person and 40° and 20° Angles?
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Discovering the Index of Refraction: A Quick and Easy Guide"
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Force & Oscillations of 2.12 kg Mass on Frictionless Track
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Light, Mirrors, Lenses, immediate help required
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Calculating Average Force of Friction on a Roller Coaster
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Difficulty With Wording of a Problem
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Proof of the Theorem: Omega and D Relationship
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Solution to (D+2)(D+3)y=4t+5e^t with Initial Conditions y(0)=4, y'(0)=5
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Which Formula Calculates Gravity's Force on a Block on a Ramp?
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Find Force at Support Point of Diving Board
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How Does Atmospheric Pressure Influence Boiling Point?
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Double checking needed on 2 Differential Equations
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Here i am again Newtons second law
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Vector Diagram for Frictionless Inclined Plane
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What Units Should Acceleration Be Measured In?
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Measuring temperature profiles
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Why do things not float in a airplane like they do on a satellite?
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Primitive Function: Finding the Right Direction
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How Can You Build a DC Electric Motor with Coils and a Magnet?
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Help with a Problem: Find H in Terms of R
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A planet with mass m, and radius r .
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Why Do Some Odd Numbers Fail to Be Prime?
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How to Express Absolute Bolometric Magnitude in Terms of Temperature and Radius?
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Gravitational Potential Energy: Does it Really Rise?
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Copper(II) Sulphate Electrolysis §§ COM Electrolysis of Copper(II) Sulphate:
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Angular momentum eigenstates and total mom. S?
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How much gold is deposited in 6 hours of electrolysis at 0.540 A?
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How to take a complex conjugate of a 5*5 matrices?
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What physics concepts can improve my mini-project design?
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Maximum Friction Force on a Ladder: Calculations and Results
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What Are Bow Shock Waves and Why Do They Matter?
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Proving Velocity Vector Orthogonal to Position Vector on Sphere Surface
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Troubleshooting: Finding the Equilibrium Position of a Charged Block on a Spring
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Equilibrium of Two Masses Connected by a Spring: Find Velocity and Distance
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Series Diff EQ problem: (3 - x^2) y'' - (3x) y' - y = 0
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Calculating Rearview Mirror + Amusement Park Mirror Images
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How Does Changing Phase Affect Water Wave Interference Patterns?
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Trouble Finding Charge Ratio for 3 Charged Particles in Line
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And here i come again friction
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What number of passengers will maximize revenue?
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DiffEQ 2nd order series sol'n problem: (1 - x)y'' + y = 0, x0 = 0
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Help Solve Physics Problem Involving a Convex Lens
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Why Are Some 3 p-Electron States Excluded by the Pauli Principle?
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Vector Addition: Components and Length of Vectors V(1) and V(2)
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How Does Ohm's Law Apply in AC Circuits and Oscilloscope Measurements?
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Triangular numbers and v-t graph
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How Do You Prove Theorems in Sentential Logic?
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Feel the Most Force on a Roller Coaster Loop
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Physic Concepts Help: Mousetrap Car Equations
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What Happens When Ice Meets Steam?
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How Is Destructive Interference Achieved in a Thin Glass Layer?
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Does Mass Affect Roller Coaster Speed?
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Designing a Test to Measure Electron/Proton Charge Equality
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Solve Physics Problems: 3 Little Questions
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Diff. EQ: How do I solve a 2nd order linear EQ with series?
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What is wrong with my derivation of max speed on inclined curves?
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Proving Theorems in Sentential Logic: SD Derivation Guide
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How much heat is liberated from the complete combustion
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Avg velocity and speed question
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Calculating Equilibrium Constant Kc - Need Help!
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Need help finishing off the last bit for a projectile trajectory problem
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Estimating Collision Duration in Rear-End Car Crashes
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Uniform circular motion - centripetal force and banked curves
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How to calculate vehicle deceleration (time to stop)
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Meteorite heading towards earth
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Solving Dynamical Systems Q3-Q8: Sketch Graph and Construct C Infiniti Functions
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What are the orthogonal trajectories for x^2y=c_1 and x^2+c_{1}y^3=1?
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Calculate Current & Resistance of 4.5V Battery & 12Ω Resistor
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What is the Energy of a Light Quantum in eV Given Wavelength in Nanometers?
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Calculating Energy Required to Move a Space Shuffle
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What Happens to Light Speed After Passing Through Glass?
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Finding the Limit of tln(t) as t Approaches 0
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Finding the Density of a Wooden Cube Submerged in Water
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Moment of Inertia for a Sphere with Lead Coating
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Max and min frequencies of a capacitor
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Are Electric and Magnetic Fields Zero for a Moving Charged Particle?
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Dynamics - Finding the Net Force
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Problems involving maximum and minimum values
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Proving Thomae's Function f(x) Not Differentiable"
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Solving Rolling Sphere on Sloped Plane: Mass, Friction, & Acceleration
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A question regarding acceleration
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Is Frictional Force Only Dependent on Weight and Not Surface Area?
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Understanding Action and Reaction Forces: A Sketch Guide for Beachgoers
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What are some project ideas for an AP Physics class involving electricity?
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How Do You Calculate Total Pressure in Mixed Gas Systems?
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Understanding Limits to Solving Two Common Questions
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Solving for u & A: Help Appreciated!
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Integration by Parts of <C> i just cannot do
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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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