Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
Threads
Why Do Stars Flicker but Not Planets?
- mohdfasieh
- · Replies 3 ·
Why Does Dispersion Bend Blue Light More Than Red, Unlike Diffraction?
- wrongway
- · Replies 8 ·
Calculating Daylight Hours Using Trigonometry
- TonyC
- · Replies 7 ·
Pendulum- Maximum displacement?
- yourmom98
- · Replies 2 ·
Solving Matrix Equations: k Values and Matrix Multiplication
- dagg3r
- · Replies 2 ·
Maximizing Cannon Range from a Cliff of Height h
- bomba923
- · Replies 8 ·
Proving Cauchy Sequences in the p-adic Metric
- Oxymoron
- · Replies 3 ·
Proving p-adic Convergence: Find Series' Limit
- Oxymoron
- · Replies 5 ·
Why are there limitations to applying Ohm's Law in electric circuits?
- hidayah
- · Replies 7 ·
What is the Expansion by Minors in Linear Algebra?
- Bob19
- · Replies 3 ·
Several things that are confusing
- asdf1
- · Replies 2 ·
Find the total charge. then decide whether you have an atom or an ion
- Pre-AlgebraDude
- · Replies 2 ·
First High & Low Tide in Harbor: Water Depth at 12am & 6pm
- TonyC
- · Replies 4 ·
How Does a 10 Volt DC Shift Affect a Sine Wave Voltage Graph?
- srfrgrl727
- · Replies 2 ·
Rubber Band Mechanics: Can an Ant Outcrawl Stretching?
- koosh
- · Replies 32 ·
Question re. Conservation of angular momentum
- dautowerk
- · Replies 2 ·
Calculating Acceleration from Change in Velocity and Distance
- courtrigrad
- · Replies 2 ·
Wave or Particle: What Defines Electromagnetic Radiation?
- asdf1
- · Replies 5 ·
Quick Question on Sets: Sketching H = {(x,y) : xy = 0} - Explained
- Benny
- · Replies 4 ·
Calculating Height of Prop Tip at 12 Minutes: 2 of 2-Trig
- TonyC
- · Replies 3 ·
Modeling Tides: When is the First High Tide and Low Tide?
- TonyC
- · Replies 3 ·
Solve Trig Equation: cosθ=4/9, 3π/2≤θ≤2π
- TonyC
- · Replies 5 ·
Energy and Time Period of a Pendulum in Simple Harmonic Motion
- Subhasish Mandal
- · Replies 2 ·
Total energy of a dielectric sphere
- hhh79bigo
- · Replies 2 ·
Need Help with Trigonometry Homework | Simplifying cos2xsin2x-cos2x
- TonyC
- · Replies 7 ·
Gravitational red shift question
- asdf1
- · Replies 3 ·
What is meant by dispersion in a wave?
- asdf1
- · Replies 2 ·
Why Is Phase Velocity Defined as v=w/k?
- asdf1
- · Replies 2 ·
How Can I Solve These Complex Translation and Calculation Problems?
- Tenshu
- · Replies 2 ·
How does air resistance affect the trajectory of a projectile?
- bomba923
- · Replies 3 ·
The Reactive Nature of Elements in Rows 2 & 5 on the PTOE
- matrix5
- · Replies 2 ·
Adding Letters to Numbered Lists: A How-To Guide
- amcavoy
- · Replies 2 ·
What is the change in momentum when an object is brought to rest?
- elissadi
- · Replies 3 ·
How can I calculate the time it takes for a rocket to complete a pitch maneuver?
- katts
- · Replies 2 ·
At Center of Convex Lens & Glass Plate: What is Observed?
- skrewd1
- · Replies 3 ·
Calculate Net Downward Force on Mars Water Tank
- badman
- · Replies 2 ·
Mechanical Advantage: 3000kg Effort, 1.5m Rise, 2000kg Mass, 12m Movement
- scientist
- · Replies 10 ·
What Do the Commutators in Peskin and Schroeder's Equation (2.30) Represent?
- Ratzinger
- · Replies 2 ·
Change in Enthalpy vs Q: State Functions Explained
- suli
- · Replies 2 ·
Work Done by Gas: Pexternal*dV?
- suli
- · Replies 2 ·
How do you calculate ampere turns for a toroid with an air gap?
- hiiragizawa
- · Replies 3 ·
Internal resistance and electromotive force problem
- nutzweb
- · Replies 2 ·
Solving Troublesome Integral: Quantum Mechanics Problem
- genxhis
- · Replies 3 ·
Magnetic field and induced EMF
- jaymode
- · Replies 2 ·
At what speed does the food enter the stomach
- frozen7
- · Replies 4 ·
2d Coulomb and Biot-Savart laws
- Tsunami
- · Replies 2 ·
What caused the cable to break during the lifting of a 4500kg container?
- ixbethxi
- · Replies 4 ·
Calculating Deuterium Atoms in 4 kg Ocean Water and Energy Needs of US
- mayo2kett
- · Replies 3 ·
Calculating Radius of Earth Given Speed & Mass
- pkossak
- · Replies 10 ·
Stumped on a Simple Math Calculation: Why is the Answer Double?
- pkossak
- · Replies 6 ·
How Does String Tension Vary with Position in Vertical Circular Motion?
- Kchu
- · Replies 3 ·
Total Current Increase when Cells Connected in Parallel
- phyphysics
- · Replies 7 ·
Solving Steel Shear Stress Problems
- psycovic23
- · Replies 3 ·
Find Angular Velocity of a Ball w/ R,y,g
- ixbethxi
- · Replies 11 ·
Sl(2,z) matrices with integer coefficients
- JSG31883
- · Replies 2 ·
What is the final temperature of the contents of the container?
- pkossak
- · Replies 7 ·
How Do I Calculate Theoretical Charge and Discharge Times in RC Circuits?
- d_sx
- · Replies 2 ·
How do determine hybrid orbitals
- professor
- · Replies 2 ·
Why Can't We Calculate the Height of a Ball Thrown Up Without Air Resistance?
- elissadi
- · Replies 3 ·
How do you solve for n in this question 34=r^n
- yourmom98
- · Replies 3 ·
Banking corners Problem regarding assignment
- Physics_Student101
- · Replies 9 ·
Calculating Volume of Sample in Air and Water
- badman
- · Replies 2 ·
Work Done on a Book: 14 J or 42 J?
- mystry4
- · Replies 5 ·
Solving Pressure Problems: Vacuum Cleaner & Octopus
- psycovic23
- · Replies 3 ·
.Calculating Heat Released from Gas Expansion at Constant Temperature
- pkossak
- · Replies 2 ·
Charged Conductor: Understanding Force in a Cavity
- Kazza_765
- · Replies 2 ·
Will this configuration reduce the shear stress on the main beam?
- sid_galt
- · Replies 2 ·
Please help me in solving this circuit
- shaiqbashir
- · Replies 7 ·
Calculating Effective Spring Constant for Platform Supported on 4 Springs
- huskydc
- · Replies 7 ·
Figuring Out Total Kinetic Energy of Rotating Object
- marcia888
- · Replies 2 ·
How Do You Calculate Bicep Force in a Torque Problem?
- marcia888
- · Replies 2 ·
How Many Light Propagation Modes Exist in a Water-Filled Cubic Cavity?
- Cummings
- · Replies 2 ·
L'Hospital's Rule Exam Help: Tex & Word Screenshot
- iNCREDiBLE
- · Replies 2 ·
30,000kg Snow vs 1mL Water: Heat Energy Comparison
- Gashouse
- · Replies 3 ·
Can someone me with this problem?
- altecsonyc
- · Replies 5 ·
What materials should I use for my egg parachute drop assignment?
- landyjg
- · Replies 2 ·
Factorising a Quadratic I still struggle
- monet A
- · Replies 10 ·
Good online source on electrostriction
- Tsunami
- · Replies 2 ·
Potential energy graph x-component
- psingh
- · Replies 3 ·
Integral convergence and limit comparison test
- Benny
- · Replies 3 ·
What is the speed of one electron relative to the other?
- Reshma
- · Replies 2 ·
Solve ln ( ln ( ln ((e^x) +4)))=e
- frozen7
- · Replies 3 ·
Solving the Example Problem: Tank w/Salt & Brine
- asdf1
- · Replies 5 ·
Kinetic Energy of 0.2 kg Ball with 20 m/s Velocity
- pkossak
- · Replies 4 ·
Is this equation causing incorrect results?
- yu_wing_sin
- · Replies 26 ·
Analyzing Critical Points of a Multivariable Function
- pbialos
- · Replies 2 ·
Consequences of Air Impurities in Sulfur Burning
- recon
- · Replies 2 ·
Interest on principal over 5 years
- yourmom98
- · Replies 5 ·
Intersecting circles in 2D: find some coordinates
- Emieno
- · Replies 4 ·
Find Angle Between Avec and Bvec: Rads Formula Explained
- philo51
- · Replies 4 ·
Angular Momentum Conservation: A Student on a Rotating Stool
- Wen
- · Replies 3 ·
Kinetic Energy Lost in Crumple Zones
- Physics_Student101
- · Replies 5 ·
Solving Limits and Convergence: Doubts and Calculations Explained
- pbialos
- · Replies 4 ·
How to convert Celsius to Fahrenheit
- Caesar_Rahil
- · Replies 4 ·
Setting Up DE for Spring Mass Motion
- Benny
- · Replies 2 ·
What Is the Equation of a Parabola with Vertex (-2, 3) and Focus (0, 3)?
- Dirac
- · Replies 8 ·
Calculating Rock Age with Least-Squares Method | Chemistry Problem Help
- lilme
- · Replies 2 ·
Solving Ball Roll Down Ramp: 200 m/s Speed for Steel Ball
- ixbethxi
- · Replies 5 ·
Why Do Physics and Chemistry Define the 2nd Law of Thermodynamics Differently?
- asdf1
- · Replies 6 ·