Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
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Fun with functionshelp requested
- ability
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Can you help me solve this system of DEs with a tricky auxiliary equation?
- EvLer
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Balancing Chemical Reactions: 0.6 O2, 0.8 CO, 0.5 CO2
- Chocolaty
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Are Atoms Real or Just a Myth?
- ShadowChaotic
- · Replies 5 ·
Why is a Cyclist Not Transforming Chemical Energy into Kinetic Energy?
- DeathKnight
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How can I solve logarithms with multiple solutions in the complex plane?
- andyman20
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Calculating torque for a small horizontal strip
- Swatch
- · Replies 5 ·
Why do electrons not fall into the nucleus of an atom?
- TheSpeed=DUCK!
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Solving inequalities, need some confirmation
- ability
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Work done on box from gravitational force
- frozen7
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Modular arithmetic + some other stuff on numbers
- Benny
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Popeye throwing himself thru the air
- cronodragon
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How Is the Average Acceleration Calculated for a Bouncing Ball?
- courtrigrad
- · Replies 2 ·
Why Is My Line Integral Calculation Incorrect?
- asdf1
- · Replies 4 ·
Proof of |g> = A|f> implies <g| = <f|B
- rayveldkamp
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Solve Spring Mechanics Problem with Hooke's Law - Vanchin
- vanchin
- · Replies 8 ·
How Do You Calculate the Potential of an Electric Dipole at a Distance?
- asdf1
- · Replies 10 ·
Simple Harmonic Motion of skydiver
- BDR
- · Replies 7 ·
Can You Solve These Challenging College Physics Problems?
- robbieholtz
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Finding the forces in equalibrium
- Ester
- · Replies 6 ·
Solving the Initial Value Problem with Euler's Method
- DivGradCurl
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What is the force applied by the handbrake to stop the car?
- baztack
- · Replies 11 ·
Solving the mass of the Earth using 17th and 18th Century tools
- Johnnymac
- · Replies 5 ·
Find Angle for Board Leaning on Wall w/o Friction
- Ester
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What is the maximum height a child reaches on a swing based on speed?
- tony873004
- · Replies 2 ·
What is the Angular Acceleration of a Free-Rotating Rod at a Specific Angle?
- rlmurra2
- · Replies 2 ·
How Is the Volume of a Sphere Calculated in Higher Dimensions?
- rocket
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Closed Form Solutions for Differentiable Inverse Functions
- rocket
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Cant seem to get the answer right (E&M HW)
- cronxeh
- · Replies 3 ·
Prove Diagonals of Parallelograms Bisect w/ Vector Method
- kanki
- · Replies 5 ·
Gauss's Law and E field problem
- gravenewworld
- · Replies 2 ·
Calculating Flux Linkage for Sphere at a Given Distance | Electric Flux Question
- Nipun
- · Replies 4 ·
Defining Sine Waves for Scientists
- SimonHollas
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Impossible vector problem. Help
- relativitydude
- · Replies 8 ·
Space Shuttle SRB Operation Question.
- jeeptraveler
- · Replies 6 ·
Improve Problem Solving Skills in Year 10
- aricho
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How Do You Graphically Add Vectors A and B in Coordinate Plane?
- nike
- · Replies 6 ·
Torque and angular acceleration problem
- feather
- · Replies 3 ·
Difference between double and repeated integrals
- Benny
- · Replies 4 ·
Matrices, Transposes, and Inverses. - Help?
- cAm
- · Replies 14 ·
Physics Formulary: Printable Resource for High-School Exam
- JBS
- · Replies 2 ·
Solving EM Field Questions: Understanding Retarded Potentials
- Dathascome
- · Replies 7 ·
Calculate Persistence Current with Probability & Charge Density
- shomey
- · Replies 2 ·
Need help solving homework problems
- confused05
- · Replies 16 ·
EM Wave direction and frequency
- physics noob
- · Replies 5 ·
How Can We Prove This Combinatorial Identity?
- Pietjuh
- · Replies 2 ·
T vs MOSFET: Which one is better for current flow control?
- pmfinnegan2
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I need a comprehensive answer,
- twits
- · Replies 19 ·
Why Isn't My Wavelength Calculation Correct?
- StotleD
- · Replies 3 ·
Finding the charge on the outer surface of the conductor
- mr_coffee
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Solving a DE Involving Derivatives of y and x
- Benny
- · Replies 20 ·
Utility companies AC instead of DC?
- pmfinnegan2
- · Replies 6 ·
Help with Intro Mechanics Problems
- mOreNa405
- · Replies 2 ·
Why Are Complex Functions and Hilbert Space Essential in Quantum Mechanics?
- Dathascome
- · Replies 5 ·
Constant acceleration physics problem
- Gadget
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Fundamental Theorem of Line Integrals
- mattmns
- · Replies 4 ·
Understanding Commuting and Noncommuting Symmetries in Quantum Mechanics
- AKG
- · Replies 29 ·
Proving Matrix Symmetries of A with Inverse Matrix
- shomey
- · Replies 4 ·
Help on Introduction to Electrodynamics 3rd edition by David J. Griffiths
- asdf1
- · Replies 2 ·
Physics Hwk Problem on Convex Mirrors
- shawonna23
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What is the reactance of the capacitor at 1.00 kHz?
- hotstuff
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First Law of Thermodynamics question
- in10sivkid
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How Do You Solve Complex Torque Problems in Physics?
- SJustice21
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Inelastic Collisions in One Dimension
- beatbama85
- · Replies 2 ·
How Do Electric Fields Behave in Nested Spherical Charge Distributions?
- leright
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How Does an Electron's Trajectory Change Near a Current-Carrying Wire?
- huk
- · Replies 6 ·
What is the relationship between wavelength and frequency in a stationary wave?
- hotel
- · Replies 5 ·
Substance dissolving problem (D.E.)
- Beez
- · Replies 4 ·
Physics books for a meteorologist
- nike
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How Do You Calculate Current in a Circuit with a Coil and Resistor in Parallel?
- Clari
- · Replies 9 ·
Calculate the forward driving force which accelerates the car down the slope.
- DeathKnight
- · Replies 3 ·
Calculate Charge on Catfish Parallel Plate Capacitor
- hotstuff
- · Replies 2 ·
Solving the Bohr Model of Atom: Transition from n=7 to n=5
- Jodi
- · Replies 6 ·
Find Minimum High h and Compression X for a Cart Going Around a Loop-the-Loop
- Aki Yamaguchi
- · Replies 5 ·
What are the Best Resources for Studying AP Physics B and C?
- sr6622
- · Replies 15 ·
Integral, an algebra problem actually
- mattmns
- · Replies 3 ·
How Long Does It Take for a Copper Sphere's Potential to Increase by 1000V?
- Hyperreality
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Redrawing Circuit for Equivalent Resistance Calculation
- trickae
- · Replies 3 ·
Calculating Work: Solving a Skiing Problem on a 30 Degree Slope
- ashkitten21
- · Replies 2 ·
Calculating Honeybee's Electrostatic Charge
- hotstuff
- · Replies 2 ·
Just took my midterm, can someone explain a problem I missed
- nperk7288
- · Replies 3 ·
How Does an Explosion Affect the Center of Mass in Projectile Motion?
- pez
- · Replies 1 ·
Solving the Challenge: Finding Block's Displacement
- huskydc
- · Replies 6 ·
Solving a Physics Problem: Calculating Ambulance Speed with Sound Waves
- pippermay
- · Replies 5 ·
Finding Cv values for Hydrogen and Water at high temperatures
- ZA
- · Replies 6 ·
Levi - Civita tensor and operations with it
- Yegor
- · Replies 7 ·
MOMENTUM and IMPULSE sample problems and solutions
- plucker_08
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Find energy dissipated due to air friction in a thrown ball
- Gashouse
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Centrifugal Force: Explaining Equations
- net_nubie
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Ph meter or acid/base titration?
- PhHsSuga05
- · Replies 4 ·
Counting Probability & Statistics Basics - 10 Coin Tosses
- mathwurkz
- · Replies 2 ·
Verify Trigonometric Identity: 2/cosx = 2secx | Doubtful Answer?
- Mozart
- · Replies 15 ·
Calculating the Velocity of Pin P in a Rod A-Rod B System
- MarkL
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What is the % efficiency of this system ?
- PhysicsNoob88
- · Replies 5 ·
Spherical coordinates angles of phi
- mugzieee
- · Replies 5 ·
Exam Problem: Rounds per minute into Megabits per second
- Ramses The Pharaoh
- · Replies 4 ·
Second order homog. DE non-const coeff.
- EvLer
- · Replies 4 ·
Newbie Needs Help: Explaining Vectors, Scalars, and More!
- nike
- · Replies 6 ·
Capacitors - problem w/ diagram
- njvc3
- · Replies 5 ·