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.
Finding tension as a function of distance from the center of rotation
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Path on Cone Fig.1: Angle ACP is 90°?
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How can we model a rolling truck on an incline using rotational motion analysis?
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Understanding Part (b) of a Charge Distribution Problem
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Finding the velocity at the top of a loop
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What is the Relationship Between Force and Spring Constant?
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Potential difference of an electric circuit
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Normal modes: Spring and pendulum
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Heat Engine: Maximizing Work Output
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Horizontal impulse on a ball at rest on a plane (with friction)
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Calculating the Time-Average Intensity of 3 Slits
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Help Needed for Solving Electrical Circuit Problem
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Calculating the Electric field for a ring
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Photon Arrival Rate, Chapter 1.5 from Computer Graphics by Folly
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Flux of constant magnetic field through lateral surface of cylinder
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Rectangular Box with two non zero potential faces
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Finding speed of a falling brick using distance and the acceleration of gravity
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Uncharged conductor inside an insulating shell
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Voltage Drop in Parallel Receptacle Wiring
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Heavy mass vs light mass in circular motion
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A Stone connected to chain is thrown vertically
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From circular orbit to elliptical orbit
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Linking moments with friction force for a sliding block
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Escape velocity and tangential impulse
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Accelerating wedge with a block at rest on it
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Momentum - Impulse collision to find initial speeds and directions
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Escape velocity of solar system
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Resistor value given capacitance and EMF with a resistance R after 3ms
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Launching a Projectile with Air Resistance
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Probability/entropy of spontaneous event
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What are the key considerations for designing an Inductrack highway system?
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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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