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 Maximum Kinetic Energy of a 2kg Body Moving Along the X-Axis?
  • chaslltt
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Express your answer in Watts and horsepower
  • Weezergames
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How Can Physics Principles Shape Frisbee on the Moon?
  • optimus prime
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Angular Acceleration Homework: 1014.65°, 17.97 rad/s
  • dr2112
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Shooting An Arrow: The Final Velocity
  • DragonReign71
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Solving a Rotation Problem: Finding Maximum Velocity for a Cylinder
  • iitjee10
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Conservation momentum questions help
  • philadelphia
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How Long Is the Football in the Air and How Far Does It Travel?
  • Neliel06
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An organ pipe is 84 cm long and at a temperature of 20 degrees C.
  • JohnnyB212
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Bird's total displacement in polar notation
  • adidab12
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Wavelength - distance between a node and adjacent antinode
  • keemosabi
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Is It A Plane? What Is The Final Velocity Of The Arrow?
  • DragonReign71
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What Is the Correct Electric Field Calculation for a Dipole at Its Midpoint?
  • Arg3n
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Solve Hanging Sign Problem: Tension in Two Ropes
  • miewann
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What is the height of the cliff?
  • adidab12
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Electric Field Strength & Work Calculation: 520V, .8cm
  • KHurst
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MULTIPLE CHOICE: Rotational Inertia
  • rvhockey
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Finding Amplitude of Oscillation for a Spring-Mass System
  • 05holtel
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Maximum efficiency of a heat engine
  • JJones_86
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Yo-YO being pulled - does my Answer make Sense?
  • TFM
  • · Replies 19 ·
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Moment of inertia for physical pendulum
  • BoogieBot
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6
How Is the Total Kinetic Energy of a Car Calculated?
  • fishingspree2
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Question on Conservation of Energy
  • itsjustwhoiam
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Frictional Moment produced by contact between rotating and non-rotating surfaces
  • Kreat-Impulse
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How Do You Model Forces in a Two Mass Spring System?
  • hurdler788
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Finding Mass of an Object [Fluid Mechanics]
  • Minihoudini
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How Much Force Was Applied to Move a Car Over 127 Meters?
  • Weezergames
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How Does a Centrifuge Separate Substances by Density?
  • Alexis1210
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Solving MA: Sum of Forces = Mass x Acceleration
  • Oblivion77
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Centripedal force velocity question.
  • bballboy1191
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Calculating c in Schroedinger Equations
  • rayfieca
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Elastic 2-D Collisions without given masses?
  • kelseymclean
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How to Conduct a Double-Slit Experiment for a School Project?
  • Jako
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Ball Thrown up in air, Velocity Question
  • cbrowne
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What Is the Skydiver's Acceleration When the Parachute Opens?
  • Melawrghk
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Which block has a greater final speed after being hit by a bullet?
  • BC2210
  • · Replies 14 ·
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Conservation of momentum in x and y directions
  • Maiia
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What Is the Radius of the n = 6 Bohr Orbit in O7+?
  • rayfieca
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Conservation of momentum 2 step problem
  • Maiia
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Calculating time/velocity for relativistic cosmic ray
  • vaizard
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What is the solution to a physical pendulum problem involving a cord and a bar?
  • fluidistic
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Coefficient of kinetic friction and acceleration
  • Leid_X09
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Net electric field by two curved rods
  • celee2
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What Output Rating (Watts) Do I Need for a Pump to Lift 8kg of Water per Minute?
  • Bayley
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Impulse and Momentum problem on skaters
  • DMOC
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Solve Bright Fringes Problem: Step-by-Step Guide
  • noobie!
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How Do You Solve an Elastic Collision Problem with Different Masses?
  • harkkam
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Fluid Flow in a Pipe: G-Greater, L-Less, E-Equal
  • hellblazer970
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How Fast Does a Pivoting Meter Stick Swing?
  • ljetoxox
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Mechanical/potential Engergy work / speed help
  • austin1250
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Horizontal plate fields physics
  • imdadasad
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What Are the Angles for Different Orders of Diffraction?
  • noobie!
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Projectile Motion and Prime Axis
  • kathmill
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What is the maximum payload a helium balloon can lift at 0 degrees C?
  • Minihoudini
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How Do You Calculate Resultant Forces in Ball and Wall Collision Scenarios?
  • curiouschris
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Projectile motion of ball and table
  • sweedeljoseph
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Dust Particles: RMS Speed Calculation (3*10^13 mm/s)
  • doggieslover
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Ball rolling up an incline Final Exam Review
  • charan1
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Colliding balls with different masses
  • devanlevin
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Making the Light Final Exam Review
  • charan1
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Water Balloon Drop Final Exam Review
  • charan1
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How Do You Calculate Net Torque on a Compound Wheel?
  • Elbobo
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20 Hp or 10 Hpwhich one does more work?
  • iFat
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Stellar Culmination: Determining Sidereal Time at the Moment of Arcturus' Peak
  • mystery_witch
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What is the spring constant of the spring?
  • JumpinJohny
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How Does Static Friction Affect a Sled on an Incline?
  • cartoonorange
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Gravitational Field Strength of Space Station w/ N Astronauts
  • fizics
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Gr12 Energy Prob: Solving for Waterfall Speed at Top
  • Uncle6
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Police Car Sound Intensity Change
  • JumpinJohny
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Radial Distance of Projectile Shot from Earth's Surface
  • mariahkraft
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How to Tackle a Challenging Physics Study Guide?
  • KennyBowen84
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Momentum Question: Cannon on Slope with Friction | Minimal Velocity to Stop
  • devanlevin
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Teaching myself physics of Perpeltion angle
  • Crookes
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Momentum and Elastic Collisions: Finding Final Velocity Ratio
  • fizics
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How Do You Calculate Torque to Determine String Tension in Physics Problems?
  • tweety1234
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What is the Maximum Acceleration for Contact of Skidding Bicycle Tires?
  • fizics
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How Does the Coefficient of Restitution Affect Collision Outcomes?
  • nokia8650
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Can two independent sources of light be coherent?
  • Sparkle2009
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Atwood Machine, Rotational Inertia, and Energy
  • rvhockey
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Convert AB6.4F Hex to Binary, Octal, Decimal
  • noobie!
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Can Formulas for Acceleration on an Inclined Plane be Written without Friction?
  • physiker99
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How Does a Rod's Angular Velocity Relate to Its Movement in the X-Y Plane?
  • suhaskowshik_92
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Capacitance and Resistance of a fluid
  • TFM
  • · Replies 5 ·
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How Far is the Third-Order Bright Fringe from the Central Maximum?
  • noobie!
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Solving Direction of Current Homework Equation
  • jaredmt
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A Couple of Practice Questions
  • MartyVice
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Finding the Initial Velocity for a 0.8m Volleyball Jump
  • psmarz
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Determine expected value of each winnings
  • Kristinanne
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Get Practice Questions: Top Resources
  • psmarz
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Center of mass on inclined plane
  • Elbobo
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Mean elongation of spring with temperature
  • jorgen
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Tank position problem based upon sound of fire
  • brick
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Calculating Heat for Temperature Changes in a Rigid Container | Thermodynamics
  • Shayna
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Calculating the Rate of Mass Falling Over an Area
  • physiker99
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Mixing HCI and NaOH: What Could Happen?
  • mollasund
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Calculating Tangential Velocity: 0.45kg Ball, 45N Force
  • sw3etazngyrl
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Moment of inertia of a beer can
  • Zack-UK
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Multi-variable quadratic question
  • Ragoza
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When to use cos or sin in physics problems
  • Raza
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Calculate Y Angle in Games Project C++ Code
  • MstWntd
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