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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Spherical Harmonic Hydrogen Wavefunction
- bon
- · Replies 6 ·
Linear Algebra - matrix problem
- idn1984
- · Replies 7 ·
Will the Truck Roll Back Down the Slope Due to Insufficient Friction?
- tobes_oz
- · Replies 3 ·
Center of gravity - conflicting result
- Femme_physics
- · Replies 34 ·
Formulas needed for a dynamic problem
- Femme_physics
- · Replies 33 ·
Electric flux through a circular plate
- rolls
- · Replies 6 ·
Maximizing Distance Traveled with 1200 Joules of Fuel in a Potato Cannon
- cupcuppycup
- · Replies 1 ·
Solving Atwood Machine: m1 & m2 Reaching Floor & Ascending Height
- DmytriE
- · Replies 4 ·
How do I troubleshoot a simulation not loading in my web browser?
- teggenspiller
- · Replies 1 ·
What Is the Difference Between Temperature and Thermal Energy?
- Peter G.
- · Replies 2 ·
How Much Torque Is Needed to Stop Rotating Balls in 6.97 Seconds?
- Leeoku
- · Replies 3 ·
How Fast Must a Bullet Travel to Tip a Block on Its Edge?
- Krappy
- · Replies 3 ·
Acceleration of a pendulum as a function of time
- mcovalt
- · Replies 1 ·
Moment of inertia of a wire shaped into a semi circle
- kingkong69
- · Replies 1 ·
Conceptual general physics help?
- gibson101
- · Replies 8 ·
The Strong Force on a Neutron Captured by a Nucleus
- mcdowellmg
- · Replies 1 ·
Uniform circular motion with a pendulum
- Femme_physics
- · Replies 59 ·
What is the Final Angular Velocity of a Cylinder?
- James50
- · Replies 3 ·
Constant acceleration velocity and displacement
- libertyforall
- · Replies 1 ·
Hooke's Law for Compression: Is the Constant the Same as for Extension?
- factfinder
- · Replies 1 ·
What Determines Relativistic Momentum: Mass or Velocity?
- Shark 774
- · Replies 2 ·
Which object has the greatest final velocity?
- jennyerickson
- · Replies 2 ·
What is the Annual Percentage Growth in Energy Consumption from 1996 to 2025?
- Jenkz
- · Replies 4 ·
How Does Subtracting and Adding Masses Affect Acceleration in a Force Equation?
- mcdowellmg
- · Replies 3 ·
Solve SR Particle Velocity Homework Eqns for Kinetic Energy
- gnulinger
- · Replies 2 ·
Structural Supports on a bridge
- calixgirlx1
- · Replies 1 ·
Proof of Periodic Sinusoidal waveforms
- tomh
- · Replies 1 ·
Bullet fired into a block that and swings like a pendulum
- kerbyjonsonjr
- · Replies 3 ·
General gravitational potential energy question
- iceman99
- · Replies 3 ·
Uniform circular motion problem
- Femme_physics
- · Replies 24 ·
Index of Refraction of Liquid: Find Value
- Voong
- · Replies 5 ·
What Forces Balance for a Stationary Deflected PP-Ball?
- gurtaj
- · Replies 1 ·
Non-Uniform Circular Motion - Find Change in time
- mcovalt
- · Replies 8 ·
How Do You Calculate Power Input for an Alternator at 3000rpm?
- fran1942
- · Replies 1 ·
Inclined plane and spring problem
- emailanmol
- · Replies 4 ·
Does a North Pole Magnet Attract or Repel Metal?
- fran1942
- · Replies 1 ·
Conceptual general physics help?
- gibson101
- · Replies 1 ·
Where can I find resources for studying circuit problems?
- thatnewkid
- · Replies 2 ·
Why Can't I Sum Potentials in Electrostatics Problem?
- Beer-monster
- · Replies 3 ·
Where Can I Find Past Exam Answers for 1984 & 1988?
- epix
- · Replies 3 ·
Point Charge sliding on a semi-circle
- hershey7
- · Replies 12 ·
How can I create a model roller coaster without using additional energy?
- DefyGravity
- · Replies 4 ·
Simple Harmonic Motion , finding the time taken to travel an angular dispalcemnt
- kingkong69
- · Replies 3 ·
Total Distance Traveled by Bird Before Train Collision?
- libertyforall
- · Replies 7 ·
Swing 360: Solve for Velocity of Swingset
- Mathg09
- · Replies 4 ·
Guess Teacher's Mass: 6.43, 60, 64.3, 600, 643 kg
- cupid.callin
- · Replies 3 ·
Cooling of an Object: Which Hypothesis is Correct?
- scientifico
- · Replies 1 ·
Finding Vertical and Horizontal Forces on a Hinged Bar
- MozAngeles
- · Replies 4 ·
Electrons in uniform electric field
- herbert1
- · Replies 1 ·
How Do You Calculate Temperature Rise in Copper Windings?
- Red_shift
- · Replies 1 ·
Sailboat in the wind problem. (Kinematics) Conceptual question.
- Sentience
- · Replies 3 ·
Calculating Velocity of Falling Dumbbell: Two Masses Connected by Rod
- Square47
- · Replies 4 ·
Simple Kinematics Problem - Is the book wrong?
- Nano-Passion
- · Replies 7 ·
Discern initial V w/o components?
- afronicus
- · Replies 5 ·
Coulomb's Law and Final Angle of Dust Cobweb
- leafsfan2
- · Replies 1 ·
Solve for X in AXB=C: Matrices Question 4
- BilloRani2012
- · Replies 6 ·
Optimizing Pendulum Release Height for Maximum Tension and Circular Motion
- reganw
- · Replies 4 ·
Thermodynamics - Rods, bubbles and magnets
- MikamiHero
- · Replies 3 ·
Standing Waves: Amplitude, Nodes, and Energy
- Abhishekdas
- · Replies 2 ·
What is the instantaneous value of UL after commutation?
- builder_user
- · Replies 70 ·
Charging Time for Battery Pack: 1 hr 35 min 23 sec
- Travian
- · Replies 18 ·
How Does an Incline Affect Truck Deceleration?
- scott86
- · Replies 4 ·
Calculating Acceleration and Tensions in a Blocks and Pulley System
- DragonZero
- · Replies 4 ·
Circumpolar star declination problem
- trina1990
- · Replies 5 ·
Photons collected be telescope apertures
- trina1990
- · Replies 2 ·
Learning Refrigeration Cycle: Carnot, Real Life & Reversed
- Peter G.
- · Replies 8 ·
Finding Acceleration of Falling Object: Newton's 2nd Law
- LukeEvans
- · Replies 12 ·
Solving Matrices for Pmv & Garlic Bread Cost
- BilloRani2012
- · Replies 15 ·
What Is the Correct Method to Calculate W and Alpha in Planar Kinematics?
- smruthi92
- · Replies 3 ·
Standing waves question with harmonics?
- Kratos321
- · Replies 4 ·
Force-Time Diagram for High Elevation Block Drop | Calculate Max Force
- Red_CCF
- · Replies 4 ·
Finding the magnitude of impulse
- oalanojr
- · Replies 2 ·
Earth's magnetic field in Brisbane
- ausdreamer
- · Replies 2 ·
Calculating Fundamental Frequency of Vibrating String
- newtons1L
- · Replies 6 ·
Accuracy of Resonance Lab Experiment
- kamalholly
- · Replies 1 ·
Rigid Rotator (Quantum Mechanics)
- bon
- · Replies 8 ·
Direction of the change of momentum
- oalanojr
- · Replies 2 ·
Calculating Time Dilation in a Relativistic Spaceship Passage
- Little PBrane
- · Replies 2 ·
Stress strain and youngs modulus
- Luke1121
- · Replies 3 ·
Uniform electric and magnetic field
- aiika
- · Replies 5 ·
Charging by Friction: Explanation and Questions
- handsoff
- · Replies 1 ·
Can Rubbing a Metal with a Cloth Charge It by Friction?
- nilic1
- · Replies 2 ·
Uniform circular motion - simple problem
- Femme_physics
- · Replies 4 ·
Kinematics: Rectilinear Motion (calculus)
- liechti1
- · Replies 5 ·
What is the optimal tilt and azimuth angle for solar panels?
- drogerssolar
- · Replies 9 ·
Calculating Particle Motion with Varying Force: Solving for Distance and Time
- LukeEvans
- · Replies 26 ·
How Can I Find Resonance Frequency and Create a Schedule for Input Resistance?
- builder_user
- · Replies 27 ·
Force Between Parallel Conductors
- miniradman
- · Replies 3 ·
How Does Buoyant Force Influence Water Flow Through a Hole in a Sinking Bowl?
- newmessiah
- · Replies 4 ·
Maximum displacement from equilibrium of the mass as it osciallates
- Reema
- · Replies 6 ·
Acceleration always perpendicular to velocity
- randomafk
- · Replies 6 ·
ImageShack® - Host Photos & Videos Online
- gomes.
- · Replies 1 ·
Identifying substances using critical angle
- Derosion
- · Replies 1 ·
What is the final velocity from given work, mass, initial velocity, and time?
- cretin66
- · Replies 4 ·
How Far East Did the Backpacker Walk?
- Nano-Passion
- · Replies 1 ·
Calculate G Force Impact & Curve Speed
- jchively
- · Replies 5 ·
Calculating Frictional Force on a Rolling Sphere: Incline Physics Problem
- DragonZero
- · Replies 6 ·
Proving Parallel Lines with Matrices: Q3
- BilloRani2012
- · Replies 2 ·