Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
Threads
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
- · Replies 2 ·
Find energy dissipated due to air friction in a thrown ball
- Gashouse
- · Replies 2 ·
What is centrifugal force and what are its equations?
- net_nubie
- · Replies 2 ·
Ph meter or acid/base titration?
- PhHsSuga05
- · Replies 4 ·
Finding sequences with exactly 3 heads in 10 coin tosses
- mathwurkz
- · Replies 2 ·
Is 2/cos(x) equal to 2sec(x)?
- Mozart
- · Replies 15 ·
Calculating the Velocity of Pin P in a Rod A-Rod B System
- MarkL
- · Replies 4 ·
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 ·
Vector addition with three 50-unit vectors at 30°, 195°, and 315°
- nike
- · Replies 6 ·
Capacitors - problem w/ diagram
- njvc3
- · Replies 5 ·
Does Decreasing Final Velocity Increase Impulse?
- StotleD
- · Replies 2 ·
Position Vector of Center of Mass: What is dm?
- UrbanXrisis
- · Replies 3 ·
RC Circuits Lab: Get Help Understanding Charges & Discharges
- naissa
- · Replies 6 ·
Forward and reverse rates after pressure increase in 2NO₂ ⇌ N₂O₄ equilibrium
- mikeyman2010
- · Replies 2 ·
Practicing Validity: Using Rules of Inference to Prove Arguments
- completely lost
- · Replies 4 ·
SAT Physics and A-Level Physics
- monoceros
- · Replies 3 ·
Determining Weights of Terms in ODEs of General Order n
- Benny
- · Replies 2 ·
Rational Expressions Answers: Check Your Work
- shorty_47_2000
- · Replies 2 ·
How Do You Calculate Angular Magnification for a Lens?
- Jodi
- · Replies 2 ·
Calculating Acceleration of Particles on a Sloping Roof
- hendrix7
- · Replies 3 ·
Basic math formula books for beginners
- nukes
- · Replies 3 ·
Calculating Volume of a Cylinder Using Integration
- jennypear
- · Replies 2 ·
Potential energy of this water were converted in to electrical energy
- sundeepsingh
- · Replies 2 ·
Cylindrical shells volume: y = x² - 3, y = 2x rotated about x = 7
- Benny
- · Replies 5 ·
Finding force between solut and solvent particles
- andyman20
- · Replies 2 ·
How Does Effective Mass Affect Plasmon Dispersion in Tetragonal Crystals?
- Igor_S
- · Replies 2 ·
ODE - interpretation of solution.
- Benny
- · Replies 13 ·
Finding an antiderivative using substitution rule
- h_k331
- · Replies 5 ·
Preparing for the International Physics Olympiad (IPhO)
- mabramovich
- · Replies 4 ·
Equations Involving Vectorssss
- ziddy83
- · Replies 3 ·
Really basic question in ionic equilibrium
- m0286
- · Replies 2 ·
Calculating Power in AC Circuits: Solving for Minimum and Maximum Power Values
- physics noob
- · Replies 5 ·
Calculating Internal Resistance and EMF of a Voltage Source
- BDR
- · Replies 13 ·
How can you find ionization energy from charge and electron level?
- Twigs
- · Replies 5 ·
Calculating Electron Speed in a TV Screen Using 2.0 kV Potential Difference
- hotstuff
- · Replies 2 ·
How Many Hats Must Be Sampled to Guarantee Every Color Is Included?
- neutrino71
- · Replies 3 ·
Where can I find resources to practice functions and other maths topics?
- aricho
- · Replies 2 ·
What particles from radioactive material are blocked by a magnet?
- Matthias32
- · Replies 6 ·
Why is this flux negative and not postiive?
- mr_coffee
- · Replies 2 ·
What Determines the Stopping Voltage for UV Light on Gold?
- bayan
- · Replies 2 ·
Solving |2-x|^2 - 2|2-x| = 15
- frozen7
- · Replies 7 ·
Solving a Cylindrical Brick Chimney Toppling Problem
- rc75
- · Replies 2 ·
Calculating Distance with Latitude and Vectors
- courtrigrad
- · Replies 3 ·
What is the limit of exp(-kM/T)?
- CarlB
- · Replies 2 ·
What is the maximum distance the frame moves when a putty is dropped onto it?
- Swatch
- · Replies 8 ·
What is the relationship between exact equations and partial derivatives?
- DivGradCurl
- · Replies 5 ·
How much work is done in moving a mole of electrons around a circuit
- hyperdrive
- · Replies 6 ·
Ohm's Law Problems: Solving for Resistance and Current
- nutzweb
- · Replies 2 ·
How to memorize a 1000-page honors physics textbook for science bowl tryouts
- Imparcticle
- · Replies 3 ·
Finding force, power and kinetic energy for a 100m sprint exam
- jessica4002
- · Replies 7 ·
Volume of a cone in n dimensions with linear shrinking
- daftjaxx1
- · Replies 2 ·
Waves- Interference/Double-slit experiment
- Jodi
- · Replies 2 ·
Change of variables (i don,t understand)
- eljose
- · Replies 3 ·
What does a specific gravity of 780 mean?
- Arden
- · Replies 4 ·
Find The Area Of A Shape In Form Of A Star
- mathelord
- · Replies 4 ·
Finding Volume of Solid Bounded by Equations: How to Setup a Double Integral?
- mugzieee
- · Replies 5 ·
Calculating Distance Traveled in Varying Acceleration for Two Cars
- Gadget
- · Replies 4 ·
Why take the real part when solving ODEs with complex substitution
- Benny
- · Replies 2 ·
Creating an Equation for f(t) from the Last Waveform in the Picture
- ACLerok
- · Replies 10 ·
Find the normal force by each support
- vinter
- · Replies 15 ·
If heat is constant, why isn't time proportional to mass squared?
- latyph
- · Replies 3 ·
Solving Calculus Integral with x=asin(theta)
- iggybaseball
- · Replies 2 ·
Volume inside sphere x² + y² + z² = 2, outside cylinder x² + y² = 1
- mattmns
- · Replies 4 ·
How Does a Charged Ball in Equilibrium Calculate the Charge on Capacitor Plates?
- mayo2kett
- · Replies 3 ·
Mechanics of Materials Bending Stres Problem
- Delta-One
- · Replies 2 ·
Magnitude of net electric field
- mayo2kett
- · Replies 3 ·
Find the surface charge density
- mr_coffee
- · Replies 5 ·
Solving Integral of ln(2x+1)dx with By Parts Method
- mugzieee
- · Replies 5 ·
Easy way to measure field strenght
- Link
- · Replies 2 ·
Why Does the Combined Mass Reach Only R/4 Height in a Frictionless Bowl?
- Swatch
- · Replies 5 ·
Finding total displacement for a car traveling east, north, then 30° east of north
- courtrigrad
- · Replies 4 ·
How Does Temperature Affect Piston Elevation in an Ideal Gas System?
- Bob19
- · Replies 14 ·
Solving Box Sliding Down Plain: V(0) Calculation
- ido25
- · Replies 5 ·
Calculate Refraction of Red Light Wavelength 750nm
- shorty_47_2000
- · Replies 2 ·
How high is Joe when Anastasia hits the ground after falling 31 m?
- StotleD
- · Replies 9 ·
Current produced by rev of electron
- kanki
- · Replies 3 ·
Science based games for children
- r4nd0m
- · Replies 2 ·
Trebuchet Circular Motion -> o.0
- Sobani
- · Replies 3 ·
Linear Programming: Solving Acme's Lowest Cost Problem
- iNCREDiBLE
- · Replies 3 ·
What is the speed of the blood?
- hotstuff
- · Replies 2 ·
Kirchhoff's Rules, system of equation problem
- coile3
- · Replies 4 ·
Centripetal Force / Inclined Plane Question
- Dooga Blackrazor
- · Replies 7 ·
Uniform Acceleration: Why (v+v0)/2 Works
- Omar.Castillo
- · Replies 2 ·
Understanding E-Fields and Their Applications in Physics
- leright
- · Replies 8 ·
How do I calculate the period of a wave using frequency and time increments?
- StotleD
- · Replies 7 ·
Vector Field Commutator Identity in Covariant Derivative
- schulmannerism
- · Replies 6 ·
Maximum Angular Frequency for Blocks Tied on Spinning Turntable
- huskydc
- · Replies 26 ·
Calculating the Bounded Area of cos[x] from 0 to pi
- mathelord
- · Replies 8 ·
Block on an accelerating inclined plane
- winhog
- · Replies 19 ·
2 balls involved in 1-D Elastic Collision
- SpeeDFX
- · Replies 3 ·
How Do You Calculate the Angular Acceleration of a Decelerating Turntable?
- sterlinghubbard
- · Replies 2 ·
Are there any tick to trig idenity problems?
- HappMatt
- · Replies 9 ·
Prove the equality using the theorems in determinants
- plucker_08
- · Replies 4 ·
Determine the charge density on either plate (capacitor)
- mr_coffee
- · Replies 4 ·