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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Complex roots of second-order linear ODEs with constant coefficients
- JM00404
- · Replies 2 ·
Parametric Equations for Tangent Line at (cos 0pi/6, sin 0pi/6, 0pi/6)
- weckod
- · Replies 9 ·
What Is the Collision Height of Two Balls with Different Initial Velocities?
- justagirl
- · Replies 4 ·
Proving the superposition of initial conditions gives superposition of motion
- mcah5
- · Replies 2 ·
Brass ring and aluminum rod thermal expansion problem
- thenewbosco
- · Replies 1 ·
Creating a sorted linked list with duplicate removal in C++
- heavyc
- · Replies 1 ·
Finding where Fahrenheit and Celsius scales give equal temperatures
- Imparcticle
- · Replies 4 ·
Calculating Surface Charge Density in a Uniform Electric Field
- stunner5000pt
- · Replies 1 ·
Why Does a Pebble Fly Off a Rolling Wheel if Its Speed Exceeds sqrt(Rg)?
- asdf60
- · Replies 2 ·
Does the acceleration due to gravity ever change?
- jacy
- · Replies 1 ·
Newton's 2nd Law and Orbital Motion
- runevxii
- · Replies 3 ·
Are These Statements About Limits True?
- vbplaya
- · Replies 2 ·
Is R^+ a Vector Space with Non-Standard Operations?
- mpm
- · Replies 1 ·
Proving x is a limit point iff a sequence in A converges to x
- *melinda*
- · Replies 2 ·
Finding maximum dog pen area with 600 feet of fencing
- minase
- · Replies 1 ·
The Parabola Opening Up and Merging Roots
- discombobulated
- · Replies 13 ·
Surviving a Car Crash with Airbag Deployment: Calculating Stopping Distance
- courtrigrad
- · Replies 4 ·
Math derivation of Hawking radiation for a solar mass black hole
- mgiddy911
- · Replies 3 ·
Solve Friction Problems: 3.00 kg Crate on 35° Incline
- 404
- · Replies 2 ·
Struggling with a Physics Problem: Calculating Meson Velocities
- blag
- · Replies 1 ·
Unit Tangent Vectors for Position Vectors: Finding T(t) for Given Values of t
- weckod
- · Replies 5 ·
Normal Force: When is mg not Enough?
- grief
- · Replies 4 ·
Dopper Effect in Special Relativity
- yukcream
- · Replies 3 ·
The Gravitational Force (between two spherical objects)
- princess7115
- · Replies 6 ·
Tangent line to a particles path at a specific time?
- badtwistoffate
- · Replies 3 ·
Is it Logical to Have Both dp/dq and dq/dp in the Same Formula?
- Castilla
- · Replies 2 ·
Physics-Conservation of Momentum
- guit_666
- · Replies 10 ·
Is Your Calculation of Average Velocity Correct?
- badtwistoffate
- · Replies 7 ·
Light refraction problems with geometric optics
- Mr_Fluffykins
- · Replies 5 ·
Physics problem from image - need help with solution
- Pepsi24chevy
- · Replies 1 ·
Succeeding in calculus-based physics and calculus 2
- badtwistoffate
- · Replies 1 ·
Is filling a football with helium really beneficial for hang time?
- bijanv
- · Replies 8 ·
Infinite square well: showing average energy exceeds E_1
- quasar987
- · Replies 6 ·
How Does Collision Affect Car Velocity?
- tomwheeler87
- · Replies 3 ·
motorcycle accelerating up a 30-degree ramp with air resistance
- princess7115
- · Replies 6 ·
Finding Nv to calculate Ef - Ev in doped silicon at 300K
- kizersi5
- · Replies 2 ·
Proving Limit of x^4 as x→p is p^4
- asdf60
- · Replies 4 ·
Static and Kinetic Frictional Forces
- princess7115
- · Replies 2 ·
Can a vector of magnitude zero have a nonzero component?
- confusedaboutphysics
- · Replies 6 ·
Why is tension zero in part of a suspended steel wire?
- thomasrules
- · Replies 15 ·
Electric field magnitude between dipole charges and parallel plates
- DivGradCurl
- · Replies 1 ·
Converting from square to polar coordinants
- Bob19
- · Replies 2 ·
Solving a Differential Equation with L, R, E(t), and i(0) as Constants
- hola
- · Replies 6 ·
How Do You Calculate When a Star Reaches Its Highest Point Using Sidereal Time?
- Reugar
- · Replies 1 ·
Is T = T^-1 in Lorentz Transformations for 4 Vectors?
- yukcream
- · Replies 4 ·
Finding weights on other planets
- themadperseid
- · Replies 4 ·
Thermodynamics Question heat through a wall
- kdinser
- · Replies 1 ·
Force Formula: Find Out How to Calculate Force
- kizersi5
- · Replies 3 ·
Solving John and Mary's Handshake Problem
- andytran
- · Replies 2 ·
Answers to Questions on Work and Energy
- allstar1
- · Replies 12 ·
What Are Binomial Coefficients and How Are They Derived?
- Gale
- · Replies 4 ·
Ranking electric field magnitude in equipotential surface diagrams
- mr_coffee
- · Replies 1 ·
Can the Extended Euclidean Algorithm Solve Equations in Number Theory?
- Bob19
- · Replies 9 ·
Solving complex number equations
- deryk
- · Replies 5 ·
Find a vector equation for the line
- dagg3r
- · Replies 2 ·
Having Trouble with these 2 problems
- buck3y3nut
- · Replies 2 ·
Greatest commen divisor question
- Bob19
- · Replies 5 ·
How Does Piston Movement Affect Gas Compression in a Cylinder?
- thenewbosco
- · Replies 3 ·
E-Field Lines and Equipotential Surfaces
- F-Stop
- · Replies 2 ·
How to solve for f_n(x) in Stewart Calculus text's review section?
- Jeff Ford
- · Replies 4 ·
Thermodynamics maximum and minimum temperatures
- asdf1
- · Replies 2 ·
Still having problems with vectors
- confusedaboutphysics
- · Replies 5 ·
Solving the Integral of (4-x)√(4x-x²)
- Stevecgz
- · Replies 4 ·
Finding total acceleration for a passenger on a ferris wheel
- ledhead86
- · Replies 9 ·
Finding launch angles for a projectile to travel 560 m at 82 m/s
- garboui
- · Replies 3 ·
Calculating Work Required to Remove Dielectric Slab from Charged Capacitor
- srhly
- · Replies 1 ·
How Do You Solve the Inequality |x-8|<|2x+1|?
- Brady
- · Replies 8 ·
Is y=(x-c)^2 the Only Solution to the Differential Equation (y')^2=4y?
- schattenjaeger
- · Replies 1 ·
Is a Vector e=(0,1) a Basis in R^2?
- sibiryk
- · Replies 2 ·
Radius Ratio of Crystal: Interstitial vs Large Atom
- asdf1
- · Replies 4 ·
How Do Nurses Calculate the Weight of a Patient Using Newtons?
- themadperseid
- · Replies 3 ·
Particle motion under constant force in 3D
- Pepsi24chevy
- · Replies 3 ·
Net Ionic Equations verification
- Pengwuino
- · Replies 8 ·
Efficiency of a 265W motor drawing 4.30A from 120V line
- aMo0oDi
- · Replies 4 ·
Sum of the series with ratio -3/7
- Benny
- · Replies 3 ·
Does a freight car's velocity change as sand leaks out?
- mini_mia
- · Replies 3 ·
Implicit Differentiatoin question
- compute_a_nerd
- · Replies 2 ·
How Can I Solve ∫[6/(x^2+3)^2] Using Substitution?
- badtwistoffate
- · Replies 3 ·
Finding constant c for parallel vectors and equal magnitudes
- fahd
- · Replies 1 ·
Which Surface Does X=cos(t), Y=sin(t), Z=t Lie On?
- weckod
- · Replies 3 ·
Calculating Force Needed to Accelerate a 7.00g Pellet from Rest to 175 m/s
- airelemental135
- · Replies 1 ·
Acceleration, friction, pulleys
- jshaner858
- · Replies 3 ·
Interest rate comparison trouble
- yamashek
- · Replies 4 ·
Showing something is not a function
- mattmns
- · Replies 13 ·
How Do You Solve 4x^2 - e^x = 0 Using Numerical Methods?
- stunner5000pt
- · Replies 1 ·
Calculating Forces and Acceleration in Motion Problems
- airelemental135
- · Replies 13 ·
How Can Algebraic Definitions Help with Proving Things?
- Gale
- · Replies 7 ·
Numerical Methods: Calculate 4/5 + 1/3
- stunner5000pt
- · Replies 1 ·
Will the Cannonball Clear the Cliff at 25 Meters High?
- ledhead86
- · Replies 1 ·
Rock dropped from cliff heard hitting water in 3.4 seconds
- MC363A
- · Replies 3 ·
EMF induced in rotating coil in Earth's magnetic field
- Pepsi24chevy
- · Replies 2 ·
Unit conversion between m/s² and km/h, and tension on accelerating elevator
- Effitol840
- · Replies 6 ·
How Do You Balance Complex Redox Equations with Multiple Oxidation Changes?
- dajugganaut
- · Replies 1 ·
An ordered field in which N is bounded.
- StonedPanda
- · Replies 7 ·
Satellite, magnitude/acceleration problem
- tennisman03110
- · Replies 2 ·
Elevator acceleration with mass
- tennisman03110
- · Replies 5 ·
Finding a vector to add for a resultant in the -x direction
- confusedaboutphysics
- · Replies 7 ·