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.
Conceptual Check - Momentum: How Does Momentum Change When Objects Collide?
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Charged conductor in electrostatic equilibrium
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Understanding Basic Algebra: Rearranging Equations and Solving for Variables
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Direction of car's average acceleration vector as it turns
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How Does the Hour Hand's Velocity and Acceleration Change from Noon to 6pm?
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What is the Direction of the Particle Velocity in a Traveling Wave?
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Equation for Centre of Gravity of a Hollow Conical Frustum
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Solve Columb's Law Problem: q1 for q2=4.4nC, Dist 10cm and 20cm
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Rotational motion and an incline
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Electric Charge/Gravitational Pull
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Find Vector C when given Vector A & B.
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Block Hitting Spring: Time to Travel x=0 to x1
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How Do You Calculate Input Signal from Analog Meter Readings?
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How Can We Calculate Displacement and Average Velocity for a Complex Trip?
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What is the induced electric field in a wire of radius R?
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Moment of Inertia question (dead simple)
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What is the significance of h in relation to finding the distance AB?
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Calculate Deutron Mass Given Binding Energy
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Projectile lands on an incline.
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How Is the Speed of Contact Point B Calculated in Rod and Block Dynamics?
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Degrees of Freedom Concepts - quick question.
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Astronaut at centre of tetrahedron
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Rotational Collision Door Problem
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Calculating Acceleration of a Sled on an Incline with a Pulling Dog
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Acceleration of a Charged Particle in 3D Vector Notation
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Electron launched at an angle in a parallel plate field.
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Why Can't We Calculate Work Done by Friction?
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Understanding Rotational Mechanics: Finding Components of a Rotated Unit Vector
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Axial B field from disc of charge
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Finding the Power Loss Through a Transmission Line
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Nonuniform circular motion question
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Free-body diagram velocity vector
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How to Determine the Mass of Bananas Using a Spring Scale
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Signal to noise ratio for thermal and shot noise
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What is the World Line Diagram for Light Pulses in Two Frames?
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Proving an exponential function obeys the wave equation
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Simple Harmonic Motion: Giancoli Problem Help
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Equations of motion - trouble with signs
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Solving Coulomb's Law Homework Problem
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Relative Velocity Motorboat Problem
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Newton's Laws of Motion : Block Problem
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As Simple Hoist System Problem - Given Answer Wrong?
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Rate of Heat Transfer for a Two-Layer System
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Simple spring-constant equation
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How Do You Calculate the Ramp Angle with a 50N Force?
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Super elastic collision between two objects
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Electric Force problem involving HCl and Br- on coordinate axis
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RE:Newton's Laws of Motion Block Problem
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Calculating the potential difference across a lamp
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Interpreting Scale Readings in a Moving Lift
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Finding the electric field of a charged rod
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How Much Force is Needed?-Part Three.
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Optimal Blade Design and Reduction System To Lift 5lbs
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Rutherford experiment practical questions.
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Solving Wave Motion: A Water Wave on a Lake
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Fluid Statics Problem: Calculating Resultant Force on a Dam - Solution Attempt
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How to Excel in Thermodynamics and Circuits?
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What is the acceleration of block with mass of 3kg?
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Can a Voltmeter Measure the Voltage Drop Across Resistors in a Parallel Circuit?
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Calculating Kinetic Energy Uncertainty
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Center of Mass in a system of cylinders
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Calculating Internal Pressure in Glass Tubes and Spherical Flasks
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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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