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 Relativity Problems with Perpendicular Velocities?
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What is the Velocity of an Object if Soundwaves Behind it are 3 Octaves Lower?
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Electricity and Magnetism RC Circuit Conceptual Questions
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Calculating Impedance of a RLC Circuit Connected to a 60 Hz AC Source
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What Are the Wave Properties of Light in Prism and Diffraction Experiments?
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Finding the Work to Move Chocolate
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Centroid of a uniform shape, using area
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Kirchhoff's Rules Circuit Problem
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G-Force between 2 objects, find time?
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Mastering physics Problem 20.58 tension and wave velocity
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Solve Torque Equation Homework w/ Help & Solution
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Find the magnetic force on the square loop
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Faulty approach to solving a double Atwood's machine
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Finding the angle of projection and its speed in 2D Kinetics
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Finding velocity using given angle
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Projectile Motion: Finding Velocity and Speed with 2-D Kinematics and Calculus
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MCQ Question related to trajectory of two projectiles
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What Is the Correct Equation of Motion for a Pendulum at Any Amplitude?
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What is the motion of a test charge in a non-uniform electric field?
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If the angular frequency of the generator exceeds 1/sqrt(LC)
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Evaporation: Impact of Pressure & Other Factors
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Moving body on an inclined plane
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What Shows the Wave-Particle Duality of Light in the Compton Effect Experiment?
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What Is the Minimum Coefficient of Friction Needed for a Sphere Against a Wall?
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Calculate the resolution of pressure sensor ( altimeter ) ?
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Weighing a Man on the Equator: Solving the Puzzle
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What is the speed of sound in oxygen? 21.50mastering physics
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Solving Homework: Speed of Mass on Wagon
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Pressure inside a sealed container
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What determines the curvature of a particle's path in an electric field?
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Force Distribution Problem | Normalize to F0
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Impulse exerted on car during collision
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Work needed to expand a very heavy gas under high pressure
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Finding what angle is the Normal force is.
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Classifying standing waves and their frequencies
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Change in gauge pressure using viscous flow through a pipe.
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What is the stretch of the spring?
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What is the electric field at point P?
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Find Fg for G, M, m, and r: 5.21*109 mkg/s2
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Equilibrium Position in Terms of Masses, Length, and Distance
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Elastic Head-On Collision, Spring Compression.
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Calculating Distance Between Two Charged Objects
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Why take integral of V^2 when deriving Vrms?
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Angular momentum along a sloping line
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Is this mastering physics problem incorrect?
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How High Will the Puck Shoot Up from the Plate?
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Electric Potential and Kinetic Energy
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Center of Mass of open top cylinder
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The relationship between electric potential and field.
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Finding current in a circuit using Kirchhoff voltage law
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Simple Harmonic Motion and phase constant
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Electric fields, particles and deflection
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Finding mechanical energy of simple harmonic oscilator
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Calculating Force Applied to Golf Ball by Club with Limited Data
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Determine magnitude of change in velocity and direction
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Question on motion in a straight line
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Calculating Impulse Ratio for Colliding Molecules A and B
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Ball Bearing Speed Calculation in Elevator
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Electric Quadropole: Find Number of Neutral Points
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Electric Field and Potential difference
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Gas Pressure: Molecule Motion & Temp Effects
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Need help understanding ray optics question
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Calculating Potential Difference in a Teltron Tube
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Calculating the mass of the Earth
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How Do You Calculate the Mass of the Plane After Intercepting Luggage?
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Static Equilibrium Homework: Net Force and Torque Solutions
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Velocity Related Problem -- A body is thrown upward....
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What is the wavelength of light used in Young's double-slit experiment?
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Problem Concerning Inelastic collisions.
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Calculating Diffraction Grating Spacing for Red Light | Homework Help
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2-D Motion Problem with 2 masses attached by a string.
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Solve RC Circuit Problem: 45V -> 10V in 4.21ms
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A block sliding down a ramp lab (with friction)
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Varying Direct Current and Alternating current
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Figuring this circuit's amp before resistor one
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Regarding efficiency of heat engines
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Gauss's Law vs Coulomb's law problem
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Particle flow in wires of same current but diff diameter?
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Object attached in between two or more springs
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Quick Q: Is direction of velocity relevant in conservation?
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Motion of charged particles in electric and magnetic fields
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What Does Function of State Mean in Thermodynamics?
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Larmor precession and magnetic ordering
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Statics, friction of a rope around a post
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Why didn't this work? (Pun intended)
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Static equilibrium. Friction example
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Friction of a sliding door with one of its wheels "frozen"
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Object slides in rolling cylinder
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Circuit Questions -- Electrons flowing in wires and a resistor
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Box Pushed Up an Incline Ramp: Basic Newton's Law Questions
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Variation of Force-time graph for person opening parachute
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Question in mechanics (Stuck in Section B)
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Kinetics of a rigid body (conservation of energy)
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Who Exerted More Work and Power: Paul or Mark on the Incline?
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Understanding Work Calculations with Inclines
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Calculating Heat of Vaporization for Ethyl Alcohol at 65°C
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Calculating Electric Potential at the Center of a Half Spherical Shell
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Piston/bullet inelastic collision (not like other problems)
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Question in mechanics (most of the material)
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Urban heat effect: high solar reflectance and emittance
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