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.
Calculate Q-Value & Energy Loss in a Mass-Spring System | Rearranging Equations
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What is the optimal range for calculating the average value of a wave?
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Calculating Wavelength in a Ripple Tank: Understanding the PS1-PS2 Equation
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Inflatable Seatbelt Help: Calculations & Optimum Pressure
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How Can You Alter the Speed of an Object in Circular Motion?
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Magnetic field caused by an accelerating electron?
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Gravitational field strength of a mass
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Very small question about the Clausius-Mosotti derivation.
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How Does Permittivity Affect Energy Transmission in EM Waves?
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Energy transfer in Newton's cradle
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How Does Rotational Inertia Affect the Motion of a Sphere on a Moving Ramp?
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Calculating energy left in oscillator after 3 cycles
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Figuring out changes in Intensity (Inverse Square Law)
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Gravitational potential energy problem
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Capacitor Addition in Rectifier Circuit: Impact on Waveform and Explanation
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Two questions about introductory EM confusions.
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The elevator, the scale, and the wrong answer: Solving the Puzzle
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Gravitational Potential Energy of a fall
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Induced Current in an AC generator
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Drawing a Circuit from Voltage-Time Graph
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Calculating Force Exerted by Water at Nozzle
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Spherical Conductors: Voltage Calculation & Equilibrium | ρs=ρ0cos2theta
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Is acceleration vector or scalar?
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Electromagnetic Radioation Optics
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Help needed for finding stopping distance?
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Is Thinking Distance Proportional to Speed in Car Braking?
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Biot-Savart for current density in a volume
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Question about Projectiles being launched horizontally
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15
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Hai Calculating Net Electrostatic Force Need help :(
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Calculate energy of vertical oscillating spring
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Time Difference between two inertial frames of reference
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Calculating Charge Q from Electric Field at a Point
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Dew point and absolute humidity
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3
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Unable to solve an approximation
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5
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Find the Height of the Elevator
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9
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How to calculate external force acting on a pendulum
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Photoelectric Effect - Laboration
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The relationship between angle of incline and friction force
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Optimizing the Pivot Point for a Uniform Bar's Frequency of Oscillation
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Static friction for a ball rolling without slipping
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Find Mass of Object X for Centre of Inertia to Match Vehicle Tyre's Axis
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Max Reaction Time to Avoid Obstacle 95m Away
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How Does Temperature Distinguish Thermal States in Equilibrium?
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How Do You Balance Forces in a Bicycle Free Body Diagram?
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Hypothetical situation: circuit with 0 resistance
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Find the average force of friction
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Proving cos^2(\theta_x)+cos^2(\theta_y)+cos^2(\theta_z)=1
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Principle of linear momentum for a rocket
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Electric potential at surface sphere problem?
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Help calculating decibel level from intensity of sound
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What Is the Total Charge in a Non-Uniform Spherical Charge Distribution?
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Where Should the Slider Be Positioned on a Loaded Potentiometer?
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Dipole in an external electric field
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Can't get my head around reduced mass (particle physics)
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How Does an Object's Weight Change from Earth to Moon?
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Proving F is a Central Force: Alonso & Finn's Physics
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Tough question about reaction force Newton's third law -- Please help
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How Long Does It Take to Fall from a Cliff?
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Lorentz Transformation - Clock
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About the angle between force and displacment, W=F.d cosƟ
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How Do You Calculate Time Squared for a Falling Object?
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Low Water Pressure in high rise buildings
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Forces and energy in a system of a group of walkers
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Impulse and Momentum of a rocket
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Two charges and electric field?
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Calculate Final Speed of 58kg Skier on 25° Slope w/ 70N Friction
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Question on thermal equilibrium?
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Answer Work & Kinetic Energy for Mass m Whirling on Table
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Vertical energy of a pendulum - is there one?
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Finding the Center of Mass of a Suspended Scaffold and Paint Cans System
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Solid Angle Rutherford Scattering
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How Do You Calculate Elevator Cable Tension for Maximum Acceleration?
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Dynamics: Newton's Second Law_Tension_1
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Determining the Acceleration (Inclined Plane Problem)
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Question about hydrostatic pressures
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What branch or branches of physics is the following?
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Determining the Acceleration (Two objects in contact)
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Cutoff Potential vs. Kinetic Energy in Electron Volts: What's the Difference?
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How Is Extra Energy Calculated in a Stretched Wire?
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Tension Problems Given Two Weights
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What is the Ideal Temperature for Cooling a Cup of Tea?
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Calculating Acceleration and Force in a Racecar: A Newtonian Approach
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Resulting force and velocity help
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Sound waves in a closed pipe Problem
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Solve Box-Spring Problem: Setup Differential Equation
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Rocket Maximum Velocity: How to Calculate and Convert Units for Accurate Results
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Kirchhoff's and Ohm's law circuit diagram issue.
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Initial Velocity + Free Fall = Time
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[Optics] Concave-Convex lens radius
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How does a magnetic field perform no work?
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Magnetism and Current Concept Query
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Latent Heat in Solid-->Liquid transitions (phase change)
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Heat capacity ratio yields inconsistent results
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Physics Report Help -- Simple Harmonic motion and Elastic force
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Electric field and electric potential problem
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Inverse Square Law HELP PLEASE
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Need 2D plot of plane wave, cylindrical & spherical wave
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Solving the Car Parking Lights Puzzle: Current, Resistance & Time Calculations
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Bernoulli Equation Simple derivation help
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What is the correct force on q1 and the electric dipole moment?
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