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.
Science Fair Help: Deaf Tap Dancing Invention with Vibration Sensor and Light
  • dancemadz
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How Do You Calculate Hydrostatic Force and Work in Fluid Mechanics Problems?
  • gigi9
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Calculating Velocity and Energy of a Spring Mass System
  • bard
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What is the force between the two point charges?
  • marshall4
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Angular Acceleration of a washer
  • ryan838
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Which Metal Sample Shows Greater Uncertainty in Specific Heat Calculation?
  • tucky
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Why Does a Rubber Ball Stop Bouncing?
  • ruby_duby
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Need help with an inelastic collision problem
  • formulajoe
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Two Mechanics Questions 83, 84
  • yxgao
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Voltage Amplifier 72 on GRE: Negative Feedback Effects
  • yxgao
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What is the Radius of a Black Hole If Earth Were Compressed?
  • yxgao
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Solving Newton Law Problem: Find Acceleration & Tension
  • moooocow
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Calculating Final Velocity of Falling Balls
  • Crackle
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Why do some objects float and others sink?
  • Skipperchrldr
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What is the Mass of the Planet?
  • ConfusedStudent
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9
Building a Spring Launcher: Attaching the Spring
  • thegame
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2
Discover Effective Ways to Store Energy in a Book | Energy Question
  • ruby_duby
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Is a 120 Watt or 60 Watt bulb brighter?
  • sk8rlindz
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3
Solving the Verticle Wave Problem: Time to Reach Equilibrium for a 0.2 kg Load
  • timtng
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Finding the Magnitude of Force without Time: A Rocket Pack Dilemma
  • amcoolio
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2
Creating Engaging Quiz Questions: Tips & Best Practices
  • Security
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2
Apply Mean Value Theorem to Show arctan x - x = 0 at x = 0
  • sonya
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4
Calculating Resultants of Parallel/Anti-Parallel Vectors
  • EK03
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Calculating Buoyancy Force: A Question Explained
  • cathliccat
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How Do Absolute Pressure and Gauge Pressure Differ?
  • franz32
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Solving Vector Problem B: Find Magnitude & Direction
  • cowgiljl
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Solving for Tension in a Traffic Light: Fx and Fy Equations
  • cowgiljl
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Is angular momentum of the planet conserved?
  • Astronomer107
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What is the Coefficient of Restitution in a Block Collision with a Wall?
  • SuperGeek
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What is the Resultant Distance and Direction of a Person's Vector Walk?
  • cowgiljl
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Integration Techniques: Solving Tricky Problems with Tan Functions
  • BLUE_CHIP
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Double slit experiment distance
  • ksn
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Violation of Conservation of Momentum Law in Collisions?
  • sk8rlindz
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Centripetal Acceleration lab graph
  • sarujin
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Lowest Ionization Potential: Atom e (55 133 Cs)
  • yxgao
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Find the Final Voltage across a 2.0-microfarad Capacitor
  • yxgao
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Buoyancy lab for my physics class
  • Skipperchrldr
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What minimum speed v is required to keep the ball moving in a circle?
  • pringless
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What Causes Friction Problems?
  • curlydafatboy
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Where Should the Support String Be Placed for Balance in a Baby Crib Mobile?
  • zeronem
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Physics: Springs and Blocks - Mu(k), Compression, Ramp Height, Speed
  • Cyto
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How Does Light Behave at the Critical Angle in an Optical Fiber?
  • Nb
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Understanding the Nature of Free Vortices
  • powerball
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How Long Until a Bowling Ball Starts Rolling Without Slipping?
  • rdn98
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Sick Physics student needs Help
  • Earth_kissed
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Calculating Momentum in Explosions
  • mindhater
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Gcse PHysics coursework practical help
  • MightyMan
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4
Electromagnetic Diagram of 4 Antenna Array - Philip's Question
  • philipc
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Automobile speedometer physics test problem
  • acoult
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How Fast Will the Mass Be Just Before It Hits the Ground?
  • benp
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How Do You Calculate Mass from Weight on Different Planets?
  • badboyben03
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What is the force exerted on the hand by the blocks?
  • badboyben03
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Convservation of momentum if one object rolls.
  • powerball
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Understanding Water Flow Dynamics in a Bernoulli's Pipe
  • tucky
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What Is the Phase Constant in Simple Harmonic Motion?
  • edge
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Amplitude and Intensity Relationship: Explained and Solved
  • PhysChelle
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Understanding Heat Flow: Refrigerators and their Impact on Room Temperature
  • Security
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Projectile motion using energy method
  • pringless
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Two blocks and pulley systemhelp on small part
  • Juntao
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Tangent Slope at Point y=\cosh x = 1
  • bard
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Chem: if u can do this u = genius
  • gotzmlk
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Acceleration of Pulley System with Masses m1 & m2
  • physicsnub
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2 Super Hard Rotational Motion Problems
  • ScoutFCM
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Friction, speed & distance question
  • marshall4
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Simple Questions Pt1: True/False & Multiple Choice Answers
  • Security
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Calculate Heat Value: Chemistry Problem Solved
  • chemical
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Potter's Wheel Angular Acceleration Calculation
  • mustang
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How High Can You Jump on the Moon and Sun Compared to Earth?
  • gigi9
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How Do You Calculate the Coefficient of Kinetic Friction on an Inclined Plane?
  • athanasia
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Simple Determination of Initial Velocity of a Pojectile
  • Chrishaum
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Calculate Sin/Tan/Cos of Theta - Pendulum Properties
  • BluE
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What is its speed after traveling 1.00 m on the rough surface?
  • cc21392001
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Calculating Mutual Inductance with Neumann Integral Problem
  • ollitsacj
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Vibrating String and Electrons: Exploring Wave Function
  • suzy
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Calculating Stopping Distance on 10° Slope w/ Forces of Friction
  • Chapin
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Determine the maximum magnetic flux through an inductor
  • gnome
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Solve Calculus Problem: Find Shortest Ladder Length
  • AD
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Solving a Sound Wave Problem: Distance to Target
  • Banana
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Get Expert Geometry Homework Help for Proofs - Easy & Reliable!
  • hecate
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How high does sea water rise in the bell?
  • vmind
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Does the Object Overcome Gravity After the Piston Stops?
  • Captain_Insano
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Solving Perplexing Problems: 2 Examples
  • tucky
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Static friction and equilibrium - problem with geometry
  • ShawnD
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What is the acceleration of a block in simple harmonic oscillation at t=3.0s?
  • fstam2
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Boiling Temperature & Heat of Vaporization: Explained
  • franz32
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How to Calculate Tension and Horizontal Force on a Human Forearm?
  • BillyCheung
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Understanding Tension in a Simple Bridge System
  • BillyCheung
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Determine the time it takes for the ball to reach the plane of the fence
  • ptomizzle
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Some Help With Calculus Please?
  • cepheid
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Solving a Pesky Conservation Problem: Apple + Arrow
  • tandoorichicken
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Glass marble is dropped down an elevator shaft
  • tandoorichicken
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Solving Rotation Physics: Find Net Force for Ball Rolling Down Ramp
  • Little Dump
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Vertical Ball Movement: Calculating Time in Flight (Calculus Practice)
  • VikingStorm
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Solving Pivoting Rod Angular Acceleration
  • Juntao
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True or False on Simple harmonic motion
  • Security
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How Can We Simplify Integration Using Trigonometric Identities?
  • BLUE_CHIP
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What is the magnetic field at the center of a rotating charged disk?
  • discoverer02
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Particle in a potential well Gre. 93
  • yxgao
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Help with Physics Problem: Elevator Weighing 25,000 N
  • Aiasha
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How Can Mass and Air Resistance Influence Real-Life Physics Applications?
  • physicsdude
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