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.
What is the magnitude of vector C in a balanced vector equation?
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Calculating Acceleration on a Flat Surface
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How to Determine if a Particle Has Returned to the Origin?
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Calculating Final Speed and Direction of a Moving Object in a Collision
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Finding time and initial velocity of a vertically displaced launch
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How Does a Hole in a Spherical Shell Affect the Electric Field at Its Center?
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What is the mass and direction of the third piece?
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Electric Potential Vs. Electric Potential Energy Concepts
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How Much Force is Needed?-Part Two.
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Projectile Motion Unusual Problem
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Biasing: Explained in Electronics
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Two masses attached by a spring
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How Much Force is Needed?-Part One.
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How Do You Calculate Work Done by a Changing Force?
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What does the period of a normal pendulum depend on?
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Overhanging Beam Shear Force and Bending Moment Diagrams Tutorial
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Considering the Axis of a Straight Wire: Are There Other Considerations?
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Thermal Physics Adiabatic Heating Problem
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Maximizing Spring Elongation in Charged Object System
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How Do You Calculate Current Flowing in a Wire Given Electron Count and Time?
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Kinematics Problem: Sprinter Acceleration and Velocity
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Understanding The Electric Flux of A Cube Rotated by an Angle Theta
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Determing location where electric field is zero?
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Solving Equilibrium: 80N Ladder on Wall & Ground
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Pinned massless stick with a concentrated mass at the other end.
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Speed of Water Coming out of Vertical Cylinder
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How Fast Does the Racecar Driver Have to Drive?
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Equivalent Resistance of Infinite Resistor Chain
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What is the role of friction in Newton's Laws?
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Why is There No Flux Through the Left Surface of a Discharging Capacitor?
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Why Is Pressure in Fluids Considered Perpendicular to Surfaces?
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Calculating the root mean square speed from pressure and density.
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What is the displacement of an ion in a mass spectrometer?
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Why is understanding refraction crucial for studying light waves?
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Sphere Slipping Against Blocks: Solving for the Speed of the Sphere's Center
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Analyzing 2D Elastic Collisions with Varying Masses and Velocities
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Displacement and electric field
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How to Determine Forces on Ropes in a Suspended L-Shaped Beam?
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Optical components - lens and mirror
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Elastic collision with moderators
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Integrating a vector (Electromagnetism)
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Magnetic scalar and vector potential
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Mixture of hydrogen and oxygen in container
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Equivalence of Lagrangians through modified g field.
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Horizontal force outward inclined plan.
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Understanding Velocity Ratio and its Impact on Lever Orders
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Calculating Frequencies and Lengths of Hinged Wires in a Harmonic System
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Calculate the direction of the current using Lenz Law/Other
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Understanding and Solving Electrostatics Problems: Tips and Techniques
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How Do Magnetic Field Lines Behave Around a Long Current-Carrying Wire?
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Constructive and Destructive Interference
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Calculating the Age of 1.4g of Charcoal Using Beta Decay
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Angular Momentum Homework: Ratio of ω0 to V0 for Zeroed Values
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Can anyone help me check my free body diagram for mobile crane
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Accelerating system with hanging mass and friction lab
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Why do passengers in a car that stops abruptly experience different speeds?
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Energy of a system-a box moving in a circle
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Change of speed of a car turning in circles
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Calculating Projectile Motion of a Civil War Cannonball
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Hooks Law, did I think correctly?
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Ground force applied to wheel in pure rolling motion at contact point
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How Is the Retarding Force on a Meteor Calculated Using Newton's Laws?
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Impulse that redirects a hockey puck 90°
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Hookes Law, Finding A Springs Constant
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Solving Telescope Optics Homework Question Involving Five Lenses
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How Does Changing String Length Affect Its Resonance Frequency?
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Help finding velocity using data table
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Absolute pressure at the bottom of a container
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Elastic and Inelastic Collisions
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How Is Absolute Pressure Calculated at Depth in Hydrostatics?
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Is My Approach to the Spring with 2 Masses in Free Fall Correct?
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Kinematics of a dipole - Wopho Problem
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What am I doing wrong in my calculation for the final CM velocity of a yoyo?
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Really with this Free Response question for AP Physics
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Calculating Initial Velocity in Elastic Collision of Two Balls on a String
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Moments of Inertia of non-uniform rod
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How Is Angular Speed Calculated in a Falling Bucket Physics Problem?
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Can Algebra Solve String Wave Problems?
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Does Temperature Affect the Time to Reach Thermal Equilibrium?
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Displaced Axes Theorem- quick question.
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Question regarding the ''cross'' and ''circle'' signs in magnetism
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Conservation of angular momentum
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Direction of force on circular loop.
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Force on a Nail: Solving with Trig & Forces
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Gravitational Acceleration of Pendulum
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Uncertainty Analysis Homework: Vel Calc from Line of Best Fit
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Swing velocity at highest point
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Special Relativity, Train, Ball
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Simple equivalent resistance question
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How to Calculate Tension in a Rotating Disk System?
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Energy of a system-two colliding balls
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Time it takes to achieve terminal velocity?
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Rotational Dynamics: Pulley and mass system
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Rotational Dynamics: Net Torques
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One of Boris Korunsky's brain twisters
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Question regarding calculating the time it takes for an object to fall
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3 Pinned Frame - Produce Calcs, BMD & SFD
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Does IR Radiation Have a Higher Energy Level Than UV Light for Warming Objects?
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Easy center of mass/toppling question?
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Calculating Gear Ratio for Epicyclic Gear Train
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