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 Does Velocity Impact a Skier's Magnitude and Movement?
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Quantum Tunneling to an infinite wall
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Calculating Electric Potential and Energy in a System of Spherical Conductors
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Halliday Resnick Krane Example Problem: Uncertainty on Weighing Machine
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Understanding the Radial Attraction Force between Two Electric Dipoles
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[Intro QM] Verification requested on possible solution for a question
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Conducting cable surrounded by two cylindrical shells
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Problem about electric potential
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Period of simple pendulum on an inclined moving platform
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Angular frequency of a mass performing SHM
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Momentum and Impulse Problem with a Ball bouncing off a Wall
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Entropy due to this irreversible process
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Calculating Velocity from Conservation of Momentum: A Science Tutorial
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Engineering Practice Problem for a Pin-Connected Frame
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How Do Spring Force, Static Friction, and Normal Force Interact?
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How do you know if the focal length is positive or negative?
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Gaussian cylinder enclosing cylinder of charge
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Will the spring stretch or compress?
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How do I find that the tensions from both sides are equal?
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Bernoulli equation / fluid flow / finding height
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Period of spring-mass system and a pendulum inside a lift
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Angular momentum / conservation of momentum questions
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Forces acting on a Walking Beam (oil rig pump) from a pivot pin
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Surface Current and Electric Field
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Understanding Electric Field of Positive & Negative Plates
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Vector Diagram of Impulse: Is My Drawing Correct?
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How far will a piece from an explosive projectile fly?
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Weight of object below the Earth's surface
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Need Help with Physics Moment and Force Questions
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How can an event which has length and time have L = 0?
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Sphere and electric field of infinite plate
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What is the maximum stretch of the bungee and will the mass hit the ground?
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Tension between two rigid bodies
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Fluid mechanics concept help please -- Pressure versus depth
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How Do You Apply Zonal Spherical Harmonics in Electromagnetism Problems?
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How is the amplitude of a wave related to the slit width?
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Find the electric field everywhere resulting from two infinite planes
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Proton Deflection when traversing a a Parallel-plate Capacitor
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Maximum Deflection Angle In Elastic Collision
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Solving Tetherball Problem: Find Tension & Angle θ
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Time falling on slopes of same length
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Calculate the charge on an oil droplet
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Normalizing Wavefunction: Hard QM Question)
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Grade 11 Motion Question -- An object is pushed from rest across a sheet of ice
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Understanding a question about a finite energy well when E < 0
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Why does a free particle in an infinite well have uncertainty bigger than h/2 ?
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Σ free on two dielectric spherical surfaces
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Energy change under point transformation
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Write a realistic word problem for which this is the correct equation
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Finding the Compression of a Spring Using the Work-Energy Theorem
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Interpreting the Conservation of Momentum in a Splitting Object Scenario
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Geometrical optics: using Snell's law, find the depth of the pool
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AC circuit power formula question
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Dispersion diagram of light source seen through prism
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A classical mechanics problem involve rotating
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How Does Colatitude Affect the Direction of Coriolis Force?
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Kinematic Problem w/ Parabola: Solving w/ KE Theorem?
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Painter on a crate - Acceleration
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Magnets near a current carrying wire
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Galilean transform and Lorentz transform questions
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E-field of solid sphere with non-uniform charge density
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How much ice to cool down this water?
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A rocket on a spring, related to potential/kinetic energy
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Yes! Calculating Friction Coefficient
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Is the Bohr Model Defined by Equating Coulomb and Centripetal Forces?
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Measurement of speed using redshift or blueshift
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Power required to climb a 20-m-tall building in 55s
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To move a block up to the top of the wedge
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Solution Attached: Download Now!
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Finding the force of reaction as a function of time
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A-level Maths Mechanics: Prevent Block from Sliding Down Inclined Plane
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Estimating the Bohr radius from the uncertainty principle
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A practice problem with Schrodinger equation
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Incorrect Calculation of Time for Reactor Energy Phase Change
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A proton emitting and re-absorbing a pi meson
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Constraints on a hoop rolling on a cylinder
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Why is the first peak in the Franck-Hertz experiment longer than the others?
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Dimensional analysis of the equation u=prg
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A bar suspended by two vertical strings
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Understanding Fundamentals of Electronics: Solving an Electric Charge Problem
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Rocket ejecting mass in a direction perpendicular to its velocity
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Lagrangean and non inertial frame
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What is the significance of torque in the context of moment of force?
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States in the Hydrogen Atom that are not allowed
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Fluid Heights in an Open U-Tube
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What Determines the Number of Particles per Unit Volume in Ionized Hydrogen?
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Question about Statics problems involving frames
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What does the star mean in this table?
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Probability of electron in hydrogen nucleus for 1s and 2s wave-functions
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Velocity Formulas for Projectile Motion
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Circular motion to projectile motion
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SUVAT Problem: Box moving on inclined plane
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Consider three models of the Mass distribution in the Milky Way
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Olympiad dynamics problem with 3 masses and a pulley
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Momentum of ball on a pool table
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Going From EMF to Faraday's Law to find E-field in my HW problem
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How to find the forces in a particular framework of light rods
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What is the "r" in the moment of inertia?
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What mistake did I make in finding the reaction at hinge A?
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Force of the wall against the ladder is from static friction?
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