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.
Surface area of inclined XY plane at 45 degrees
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Two masses on a slope with a connected tension force
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How to write this expression in terms of a Hyperbolic function?
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(Magnetism) Magnetic pull force on a steel ball
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Why is the Bridge Crane Force 2820 N?
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Gauss' law for a cavity in an insulator
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Punching a hole in a tape moving at relativistic speed
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Fast and Furious Scene Analysis
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Can the polarity at the 2 ends of a solenoid be the same in normal conditions?
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Special relativity and standard configuration
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Calculating Force and Acceleration in a Two Block System with Varying Friction
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How to calculate velocity of infinite-stage rocket?
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How does burn time affect the parameters in the rocket equation?
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Tension & Circular Motion Question - Looking for speed
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996
Conservation Laws and Velocity Reversal in 1D Collisions
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Final Velocity of a car with a opposing decreasing drag force
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Can You Convert Meters to Kilograms?
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Kinetic Energy being larger than Mechanical Energy in a Hotwheels Lab
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Amplifier gain in resonant RLC circuit
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How does a difference in air pressure induce a force?
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Having a hard time learning Newton's 2nd law
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How Do You Incorporate Drag Force in Free Body Diagrams for Multiple Objects?
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What is the definition of the dalton (Da) unit?
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Magnetic field due to electric wire
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Can the Voltage Across a Capacitor Be Greater Than the Source Voltage in a Series RLC Circuit?
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Calculate the magnetic moment of a rotating sphere
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Ejected out from an accelerating spaceship
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Find the man's tension pulling the rope
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Calculate density of neutrons in a beam
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How does the rise in temperature of fuse wire depend upon its radius?
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Relative Motion: Understanding the Relationship Between Moving Objects
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Catching a loaf of bread thrown vertically at a window
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Can the Magnetic Field Be Determined Using Biot-Savart Law Superposition?
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How do we know the point of 0 electric field is on the axis?
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How Does Changing Distance Affect Microwave Path Difference?
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How to find the cube roots of a real number not equal to 1?
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Position and acceleration in simple harmonic motion given velocity
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Rigid Body problem please help
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Equilibrium problem: Calculate the tension of each cord
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I Thought I Understood Gauss' Law (Sheets)
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Determining field between oppositely charged conducting plates
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Coefficient of kinetic friction of a block sliding across the ceiling
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Understanding the Proper Uncertainty Formula to Use
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A water-bottle demonstration of atmospheric pressure
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Moment of inertia of a cuboid parallel to one of its faces (repost with diagram)
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Average velocity for two different types of motion along same path
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Heater power keeping a room constantly warm from low temperatures outside
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Power delivered to wheels of car with constant air resistance
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Angular frequency of two hanging bobs of different masses
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Two concentric conducting spherical shells and resistor in between
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Linearizing a circuit with a nonlinear element
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Work done by friction on a hockey puck
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Work done on crate moving on incline
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What does a Zener diode do in a circuit with non-ideal voltage source?
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Half life of multi chain decays
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Find thermal capacity of a Van der Waals gas
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Why Is My Bungee Cord Tension Calculation Incorrect?
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An optics question concerning pictures taken by camera
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'Police Car Catching Up' problem in kinematics
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Solving for φ on an oscillation problem
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Two dimensional motion problem (kicking a soccer ball into the goal)
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Potential and Electric Field near a Charged CD Disk
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(Help) Surface charge density (σ) for particle to hit plate...
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Electric field strength and direction problem (need help)
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Moments question help requested, unsure where I went wrong
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Relativity: Cosmic ray proton traveling to Earth
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Minimizing the Energy of Two Conductors Very Far Apart
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How Do Signs Affect Energy Calculation?
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Elastic collision with a massless box
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Electric field on the axis of a ring-shaped charged conductor
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Moment of inertia of a rectangular prism parallel to one face
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Find the transit time of the train
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British physics olympiad problem: A ball bearing bouncing off a steel cylinder
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Question about the thermodynamic temperature scale
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Why can we model spherical capacitor with two dielectrics as two capacitors in series?
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Conservation of Energy with springs
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Force on a charge from a nearby charged rod
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Is my textbook wrong about absolute uncertainties?
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Kinematics, curvilinear motion (a couple of questions)
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Why Is the Electric Potential the Same for Inner and Outer Semi-Circles?
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When Do Sand Particles Slip Off a Vibrating Plate?
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Help with this integral on page 34 of Analytical Mechanics by John Bohn
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Help please with my understanding the solution of this mass on a vertical spring
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Motion of a Parachuter (Terminal Velocity, Time of Flight, Distance)
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What is the y-component of the force by the floor on her during the collision?
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Max distance a truck can travel without box falling off
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Difficult problem in Rotational Mechanics JEE 2017 Comprehension paper
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Distance-time graph of a ball throw vertically up from a fixed point
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Find tension in string between two blocks on horizontal surface
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Solved: Help with a block sliding down an Inclined platform
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Why Does a Free-Falling Object Not Have Zero Final Velocity Upon Impact?
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Find the coefficient of friction and acceleration with masses given
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Two different dielectrics between parallel-plate capacitor
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Is This Electric Field Representation Accurate?
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How to answer this question, 21-cm emission line
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Uncertainty Error and Significant Figures in this Force Tables Lab
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Constrained motion of a ring along a horizontal rod
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A 3.5 nC charge is at the origin and a -10 nC charge is at x = 2 cm
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Charge on inner/outer surfaces of two large parallel conducting plates
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Rating speeds from least to greatest from a position time graph
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