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 Tension Ratios Relate to Forces in a Supported Vertical Pole?
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Potential Difference in Series & Parallel Circuits
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Commutators and solvable groups
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Prove that f(sqrt(2),-sqrt(2))=-8<f(x,y)
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25N Sideways Force on 10kg Box: F = m*a Formula Error
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Decrease in entropy atoms problem
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How to Find Matrix A from Given Matrices B and C Using Row Operations
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Solving a Physics Problem: Inverted Image & Lens Separation
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What is the Taylor expansion for 1/(1-exp(-1))?
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Calculate Magnitude of Force Exerted on q1 by q3 & Horiz. Comp.
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Finding the limit of a/(1-x^a) - b/(1-x^b) as x->1
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G-equidecomposable and equivalence relation
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What is the distance of the image?
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What is the final temp of the lead bullet?
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Matrix Multiplication: Column Swapping Effects
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Solving the Temperature Difference for Steel & Aluminum Rings
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Solve Intersection Points of f(x) & g(x) with Algebra
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Finding the change of internal energy
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Expressing velocity as a function of the distance
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Understanding Reversible Adiabatic Processes in Thermodynamics
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How to determine electron configuration
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Modular Arithmetic Word Problems
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Calculating Kinetic & Potential Energies of Earth at Perihelion/Aphelion
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Predicting bond angles of ions/molecules
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Projectile motion equation help
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How is the Poisson's Ratio Formula Derived?
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Scuba Diver Bubble: Diameter at Surface?
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How to Solve an Improper Integral with High Precision Using Simpson's Rule?
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Particle Motion on a Sphere: Angle of Separation & Geometrical Conditions
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Where can I find the image charge for a point charge near conducting surfaces?
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Calculating Cumulative Effect of Slowing Earth's Rotation Over 20 Centuries
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What Are the Inverse Elements in Z_7 and Z_13?
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What Height Is Needed for a Ball to Complete a Loop-the-Loop?
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Is the Electric Field a Force or an Energy Concept?
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Capacitors, Electric fields and dielectrics
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Angular Velocity: Reference Dot Speed at 2000 RPM for 8 cm Disk
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What is the expression for the magnitude of the horizontal force?
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Difficult thermodynamics question (p. chem)
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What are non-trivial zeros in reference to the Riemann Hypothesis?
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Fluids - floating balloon problem
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Finding the electric field in Griffiths
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Math Help: Solving Equations with Logarithms and Square Roots
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Mutual Induction: Induced Current in Solenoids?
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Proving Properties of Adjoint Operators in Functional Analysis
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Convergence of the integral ln(sin(x))
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Understanding Electric Power and Transformer Input: A Detailed Explanation
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How Do Trigonometric Identities Connect to Drawings?
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How Do I Find the Second Linearly Independent Solution of This ODE?
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The square of an orbital period
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Motion of a mass on a spring suspended vertically
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Acceleration Calculation: 8s to 12s, 64m
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How Is the Mass of Earth's Atmosphere Calculated?
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Help Needed for Physics Problem: Falling Objects and One Number
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Solving the Quadratic Equation: sq.rt.(-x^2-4x-3)
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Calculate Radius of Orbit Around Planet Zeron
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Find the arc length of the given function
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How Do You Apply the Parallel Axis Theorem to Two Spheres Connected by a Rod?
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Solving Spring-Carts Exploding: Find Speed of M1 & M2
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Convergence and Continuity: Analysis Questions on Series and Limits
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Geometry of SO(3): Reflection, Composition & Rotation
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Does Melting Ice Change the Water Level in a Glass?
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Predicting Polarity: Molecule Dipole Moment Questions
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What is the magnitude of the magnetic field at the center of the coil?
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Is the net force on an object in a spinning test tube zero?
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Do Digital Signals Really Transmit More Information Than Analog Signals?
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Solving Completion Problem: Showing Null Sequences Converge
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Mastering Plane Physics: Solving Equations & Understanding Procedures
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Conversion between lbf and Newtons
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How Do You Solve Complex Calculus Problems Due Tomorrow?
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How to get the equation of the plane. [read this one]
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Astromony Q: Red Shift of 500nm Wavelength Line in Hydra Galaxy
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Which Elasticity Formula Should You Use for Bungee Jumping?
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How Does Acceleration Affect Water Levels in a U-Shaped Tube?
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Doppler Effect on light question
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Induced Current: Copper Rod & Uniform Magnetic Field
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Spherical packing of a tetrahedon
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Comparing Problem #1 & #2: Why the Difference?
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Calculating the Speed of a Hopper Car After Dumping Coal
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Differential Equation and omega
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Stuck on Math Problem: Finding x^2+y^2
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Why is a blue laser more effective for burning and reading CDs?
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Integrating sqrt(10z - z^2) using Trigonometric Substitution
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Find the Tension in Accelerating System: Understanding Kinetic Energy Storage
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A jumble of questions realtive to chemistry
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Symmetry Testing: Solutions to 2 Equations
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Fluids Homework Help: Pascal's Barrel Burst Problem
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Calculating Water Density at 10.92 km Depth
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Simple Pendulum Angle Problem: Solving for Angular Acceleration
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What is the maximum spring compression in a bullet and block collision?
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Solving Kinematics Question: Angle Alpha for Archer Aiming at Target
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Help Electric field and Potential
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REally confused Need Help on electric charges and Coulomb's Law
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Increasing Induced Current in Mutual Induction
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Comparing Gravity on Different Planets Using a Pendulum
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Child oscillating on playground swing
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How Many Photons Does a CO2 Laser Emit to Vaporize Flesh in Surgery?
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Angle between colors - dispersion
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Chemical Equilibrium: K_c and Moles
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Proving the Second Partials Test
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Simplifying (▲^2 - x▲)(x^3) Using Finite Differences
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