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 minimum sampling rate for a 3KHz bandwidth audio system?
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Problem relating to the Heisenberg's Principle
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Physics power question frustrating me
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Solve Simple Oscillation Homework: Find Max Kinetic Energy (mJ)
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Electric circuit with resistors in series
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Equation of motion with linear acceleration and velocity-squared drag
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Help with a diffraction grating problem
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Entropy Calculation Homework: Isothermal Free Expansion
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Lorentz Transformation/Time Dilation
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What Is the Maximum Force to Apply on a Sled Before a Penguin Slips Off?
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Calculate Tension in String for Frequency of 120Hz
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Catapult Question: Force of Friction & Kinetic Energy
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Work Done by Tension: 2m Rope, 150g Tennis Ball
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Distance between the sun and earth
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Meter Circuit: Calculating Scale Reading with and without Additional Resistor
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Thermodynamics, heat in a copper cube transfer to water
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Electrical Potential of Semicircle Insulating Wire
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Spring question(just need answer checked)
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A particle accelerating in both magnetic and electric fields
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Solve Motion Question for Frictionless Rollercoaster
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Magnetism/electric fields/mass spectrum help
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Centripedal acceleration and force question
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Acceleration of 2.0kg Block: Solve Forces/Tension Problem
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Thermodynamics - Find temperature of air in balloon
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The Moon And The Earth, Acceleration ( Question Answered, Just need check )
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Two Slit Interference Question
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How Is Heat Transfer Calculated in a Cylindrical Tube with Insulation?
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Ratio of translational velocity to rotational velocity.
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Energy conservation and string tension problem
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Conservation of energy-Moving Charges
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Angular velocity of a falling rod?
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What is the area of the sun's image on the paper?
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Understanding Transistor Voltage Amplification
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Which of the following are units of momentum?
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Ferris wheel Rotational Kinematics Question
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Voltage difference and potential energy help
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Charge on capacitors each with a battery
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Momentum Qs: Find Girl & Skateboard Velocity After Jump
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What was the speed of the Camaro after colliding with an Escort?
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How Much Kinetic Energy is Stored in the Spring After a Collision?
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Solving Pendulum Questions: Length, Quick Swings, Clocks, Mount Everest & Moon
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Rocket Exhaust Gases: Initial & After 29s Acceleration
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Temperature(thermal radiation transfer)
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Linear equations-help solving for 2 unkown variables
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Which ball has the highest velocity just before ground
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What is the result of rotating an ellipse with eccentricity n2/n1 in optics?
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Calculating Work, Speed & Power of a Car Climbing a Hill
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Finding Current in a Circuit with 3 Switches
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Dynamics - sled up a hill with several angles?
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Tension and Speed Decrease: Determining Tension for Ball at θ = 20°
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Relative vectors - how do you determine?
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Emf V & Potential Difference in a Resistor
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Finding Constant A for Independent Electric Field between Two Spheres
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Conservation of energy in elastic collision
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How to Calculate the Number of Moles in a Gas Using the Ideal Gas Law?
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Relating B and E in an electromagnetic wave
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Creating Friction Force vs. Normal Force Graph
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Why are there discrepancies in my circuit evaluation?
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Calculating Radial Acceleration in Olympic Hammer Throw
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How Does Charging a Ball Affect Its Pendulum Motion?
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Miser's Gold: A Frozen Pond Rescue Plan
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Understanding Recombination Frequencies: Distance Between Genes Explained
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Hanging Mass Acceleration and Tension Force
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Momentum: Glancing collisions in two dimensions
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Determining impulse on baseball from bat given velocity change
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Solving for Current in Resistor 2 at t = 4.00 ms
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Why Doesn't Light Increase in Mass at High Speeds?
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Inductance Formulas Homework: Find Emf & Time to Drop Below 1.25mV
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I hope that helps. How far will Lisa compress the spring?
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Why Does Rotating Around the Y-Axis Require Less Work Than the Z-Axis?
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Solve Vector Plane Problem: Airplane to Lake 250 km Away
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Understanding Electric Field and Potential in Capacitors
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Range of wavelength from white light through a diffraction grating
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Rotation problem solved with conservation of energy.
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Magnitude/direction of the ball's acceleration
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Calculating Height of Stone Dropped from Rising Hot Air Balloon
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Calculating Work, Thermal Energy, and Heat Transfer for Hydrogen Gas
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Newton's third law is absurd: argue why this isn't true.
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Calculating Potential Energy Changes in a Roller Coaster System
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Efficiently Calculate Stopping Time for a Cyclist | Displacement Homework
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What is the temperature at the end of the process ?
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Capacitors: charge, potential difference and stored energy
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Need help elaborating different physics concepts in these statements
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Conservation of Momentum and Kinetic Energy in 2D Collisions
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Rotational Motion and the Law of Gravity
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Calculating the Pulling Force of a 2t Car Over 100m in 10s
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Possible title: Is Acceleration Constant at Zero in a System with No Net Force?
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Magnetic Field B Flux Through a Surface Explained
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Angular Momentum of a uniform rod
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Finding kilowatt hours from parallel capacitors
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Need a Physics Investigatory topic
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Magnitude of flux through wedding ring
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Electric field, charged balls, conservation of energy, velocity
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Angular speed of merry-go-round
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Emission in hydrogen atom - difference between electrons and photons
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Dipole Moments - Understanding Magnitude and Direction | Homework Clarification
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How Do You Calculate the Initial Speed of a Bullet Fired into a Block?
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Conservation of energy of a baseball problem
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Calculating force to accelerate object
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How Do Radio Frequency Sources Create Interference Patterns?
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