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 correct method for finding the smallest angle between two vectors?
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Capacitance of circuit & RC time constant
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I'm stcuk, sort of, not really, I need some resurance is all
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How much work was done by friction on the person?
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I think it's a conservation of energy problem
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Electron Energy in Compton Collision
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What is the Maximum Transmission Rate for Multi-Path Propagation?
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Calculating the Ampere Rating of a Circuit Breaker
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Calculating the Fastest Car Speed with Distance and Time | Homework Help
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Amplitude of oscillations depends on the amount of damping?
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Calculating Current given the number of electrons and positive ions
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Constant Acceleration With Two Objects
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Kinetic energy and potential energy of a baseball
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Addition of forces acting on object
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How Does Temperature Affect the Resistance of a Nichrome Heating Element?
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What is the Relationship Between Work, Distance, Power, and HP?
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Convert Problems | Learn How to Solve Them
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Calculating the Force Required to Move a Crate at Constant Velocity
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Acceleration due to gravity/velocity questions (I've done the work)
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Piecewise does not translate properly
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Thevenin Equal Resistance - Strange Circuit
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Electricity question potential difference
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Frictionless Boxes: Finding Tension in Connecting Cord
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Calculating tension in a taut cable
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Solving Slope Questions: Conclusions About Average Slope
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Conceptual question regarding resolving power of optical instruments
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Mike's Car Stopping Force Problem: Find the Answer!
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Gauss's Law: a nonconductive wall
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Finding total flux on Gaussian surface
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Kinematics of a Watch's Second Hand: Calculating Speed and Velocity
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Finding the Current in a Circuit
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Will a Meter Stick Rotate Around Its Center of Mass When Released?
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What is the final velocity of an asteroid on a collision course with Earth?
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Seperation effects on the forces of gravity and eletricity
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Moments Of A Couple probably just something simple.
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An ideal fluid flows through a pipe with radius R with flow speed v
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Quick sign question for uniform circular motion
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Ray Optics: Examining Meter Stick in Tank
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Solving for Initial Velocity Up a Plane: A Homework Problem
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Converting to component form help.
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Solving Particle Trajectory: Speed & Direction at t=4.5s
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What is the wavelength of the helium-neon laser beam in the unknown liquid?
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How to Calculate the Flight Time and Apex for a Model Rocket Launch in Excel?
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What is the Magnitude of Magnetic Force on an Electron in Various Orientations?
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What is the efficiency of the engine?
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Potential difference across each capacitor
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Calculating Magnetic Field Needed for Proton Beam
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Understanding Electric Potential Concepts: Help with Multiple Choice Questions
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Finding current with parallel resistors
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Maximum Height of Lighter Object in Pulley System - Homework Solution
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Potential difference of falling charge particle
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Equations of Slope: X & Y Defining Equation
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You can NOT solve this Problem, however please give it a try
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Building a water heater- using battery and wire
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Flux through a Cube - Why would flux be zero?
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Antique Road Show Physics Problem: Calculating Final Velocity of Colliding Carts
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Electric potential on long insulating cylinder
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What is the maximum distance a stone thrown at 30 m/s can cross a river?
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1983 Exam Question w/SHM and conservation of momentum
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Forces-Newton's Laws and Vectors
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Period of a mass oscillating on a spring
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Why Does the Styrofoam Slab Float at Water Level When a Swimmer Rests on It?
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Measuring Forces on an Angle: An Exploration
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Calculating Net Force on 2kg Mass Down 8m Incline
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How Does Jupiter's Mass Density Compare to Earth's?
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How do you calculate deceleration due to resistance?
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How Does Lenz's Law Affect Current in Adjacent Loops?
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Angular momentum of the sun and a white dwarf
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Conservation of Energy for a rotating Rod
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What percentage of a boat is above water when it has a density of 0.75 g/cc?
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How Many Parts Must a 100Ω Wire Be Cut Into to Achieve 1Ω Total Resistance?
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What is the net torque about the axle?
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Index of refraction of an optical fiber
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Kinetic Energy, Potential Energy, Work
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Projectile Motion Question #2 help?
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This problem is driving me crazy. It involves an incline, two masses and a rope.
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How can I design a roller project to roll down an incline as slow as possible?
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How Does Gravity on Planet X Compare to Earth's?
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Radius of Curvature of Ion in Magnetic Field
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Changing the direction of the acceleration Vector
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Calculating Vector Force Between Charged Particles
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Penguin and slide. Check my answers? I want to be prepared for the test
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What is the Optimal Diameter for a 12.0 Ω Nichrome Wire at 20°C?
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What is the power - the rate at which it supplies electrical energy?
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Solving for Current in Resistors | Voltage 40.7 V | A and B Points
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Using a velocity-time graph to calculate accelerations, positions, etc.
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Solving a Physics Mystery: Initial Speed & Height of Ball
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Min. Phase Diff.: Find x_p at Wavelength λ, 2 Sources S1 & S2
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What are some physics-based driving techniques to improve efficiency and safety?
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Photons - Trying to find distance
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How Do You Apply Kirchhoff's Rules to Solve for Currents in a Complex Circuit?
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How Well Do You Understand Electric Fields and Potential?
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Which method is more accurate for determining peak time in data analysis?
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How Do You Calculate Forces on Inclined Planes?
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Projectile Motion: Finding the Best Angle for a Tennis Ball Launcher
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Determine value of the resistance of the resister
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Fall with Air Drag - Which Value for Velocity to Use?
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Magnitude of acceleration of block
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Tension & Torque Homework: 60.8 kg Man on 2.7m Scaffold
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What Is the Electric Field Perpendicular to a Uniformly Charged Rod?
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