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 Calculate the Focal Length of a Concave Mirror with a Moving Image?
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Angular momentum and Quantum Number l
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SHM Question: What is the maximum extension of the spring?
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Calculate the equivalent resistance
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Help me calculate the speed of the basketball
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How long does it take for the car to catch up to the truck on a straight track?
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Electric flux through cubical box
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Fluid Mechanics: Hydrostatic Pressure on a gate with hinges
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Archived Vernier Caliper & Micrometer: Mr.Randall's Sig Fig Advice
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Conservation of relavistic energy
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Ocean waves parallel to the shore
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Finding angle required for equilibrium on a slope
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Calculating Wave Speeds of Steel Guitar Strings
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Solving for different masses in pulley system with KE
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Simple harmonic motion oscillate. What is the total energy
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Minimal force to turn over a tube
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Angular Momentum: Puck Spinning
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AC to DC Conversion: Determining Expected Q Factor
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Electric field between two metal plates
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Hi/ho problem -- Lens magnification
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Atwood machine at rest and released
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How far bullet travels in 2,5 seconds
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Frequency of sound waves from vibrating wire
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Kinetic energy & speed in a pursuit - Ek possible to find?
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Conservation of Energy in circular motion
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Waves Find the phase constant from the graph.
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Is my interpretation good? simple Kinetic E problem
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A non-conducting sphere, e-field and potential.
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How Do You Calculate the Velocity Components of a Sailboat Affected by Wind?
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Potential difference across two points in a circuit
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Calculating Force and Acceleration for a Yoyo and Clock
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Collision of 2 balls on frictionless surface
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Fluid Mechanics: Manometry - Fluid through a pipe
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Two ropes hold a 200N weight. Find the tension in each rope.
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Why isn't current negative in this example?
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Superposition principle for potential?
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Coefficient of friction between cylinders
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Expectation value of momentum for bound states
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Finding the voltage of a circuit
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Faraday's and Lenz's law application
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Force reactions of balls in a tube
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Calculating the Force Constant of a Bungee Cord Using Newton's Laws
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Brightness of lamp connected to transformer
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Normal force of a bead moving around a horizontal ring
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Solving the Force on a 2kg Object on an Inclined Plane
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Venturi, how does fluid go from low P tube to high P tube
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Solving for Φ(k) in Quantum Fourier Transform with ψ(x,0)=e^(-λ*absvalue(x))
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Proving Newton's third law invariant with Galilean tranfrom
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Waves in a vertical hanging string
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Calculating velocity for water pressure
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Oscillating springs in relativistic time frame
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Interpret results of suspended mass / tension problem please
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Statics problem involving several forces
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Yet another statics problem involving several forces
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Finding the Index of Refraction in a Prism
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Centripetal Force: Speed Change w/ Doubled Radius & Force
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How do I compute jerk in 2D space for a mouse tracking task?
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Specific Heat Capacity of water in a kettle
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How Do We Determine the Type of Motion in a Crane Lifting Scenario?
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Finding kinetic energy consevered after collision
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Find missing force for accelerating electron
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What's the distance a sphere travels from inclined plane?
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How Does Acceleration Relate Between Two Blocks in a Frictionless Pulley System?
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Optimizing Camera Flash Performance: The Role of RC Circuits
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How do Kirchhoff's Rules apply to a circuit with multiple resistors in series?
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Which Object is the Most Dense Based on Given Measurements?
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Potential difference between wire and ground
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Lowest pressure that the student's lungs can create?
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Total area of contact between tires and ground?
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Coloumb's Law and Electric Dipoles question
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What is the kinetic friction coefficient?
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What Is the Minimum Energy for Neutron Production in a Lithium-Helium Collision?
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Pulling a cylinder - find final angular velocity
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2D conservation of Energy and Momentum with *Three* unknowns
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Energy grade line for a pump system
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[QM] Addition of spin for normal and identical particles
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1D Collision / Charges / Coulomb's Law
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Probability density for related variables
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Two cylinders in contact come to final angular velocities
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What is the velocity of the air flowing though the pipe?
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Finding distance -- Find the height of an object given ratio of two distances
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What are the dimensions of A and B in the equation x = At2{1-exp(-t2/B)}?
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Rutherford's atom experiment problem
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QM, the convergence of the harmonic oscillator function.
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Free Fall - Calculating Origin/Release
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How to find angle Electric field makes to x-axis?
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Transvese Velocity of a Standing Wave
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Integration of an acceleration formula involving vectors
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Graphing Current v. Time for simple 2R1C circuit
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Finding binding energy and converting into MeV
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Calculating Coefficient of Static Friction to Keep Glider from Springing Back Left
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Mastering Projectile Motion Equations: A Comprehensive Guide
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Temperature need to melt this ice in 400 years
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How Do You Calculate Dragster Deceleration Time and Distance?
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Quantum mechanics relation between p, λ, E, f in a wave
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Reaction and friction coefficient on a cylinder
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How Does Lens Focal Length Affect Microscope Magnification and Field Diameter?
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Spring Constants: Does Changing Diameter Affect Constant?
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Projectile problem -- How much to increase Vi to reach a farther target?
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Solving Gauss' Law Confusion: q/ε & Changing Surfaces
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