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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Calculating Equilibrium Constant Kc - Need Help!
- ~angel~
- · Replies 6 ·
Need help finishing off the last bit for a projectile trajectory problem
- Hoppa
- · Replies 2 ·
Estimating Collision Duration in Rear-End Car Crashes
- Frank_Horrigan
- · Replies 2 ·
Uniform circular motion - centripetal force and banked curves
- dippedindettol
- · Replies 3 ·
How to calculate vehicle deceleration (time to stop)
- sparknote_s
- · Replies 2 ·
Meteorite heading towards earth
- josephcollins
- · Replies 4 ·
Solving Dynamical Systems Q3-Q8: Sketch Graph and Construct C Infiniti Functions
- sachmo
- · Replies 3 ·
What are the orthogonal trajectories for x^2y=c_1 and x^2+c_{1}y^3=1?
- RadiationX
- · Replies 4 ·
Calculate Current & Resistance of 4.5V Battery & 12Ω Resistor
- faisal
- · Replies 5 ·
What is the Energy of a Light Quantum in eV Given Wavelength in Nanometers?
- Jchem
- · Replies 6 ·
Calculating Energy Required to Move a Space Shuffle
- bayan
- · Replies 7 ·
What Happens to Light Speed After Passing Through Glass?
- ccf788
- · Replies 5 ·
Finding the Limit of tln(t) as t Approaches 0
- mattmns
- · Replies 4 ·
Finding the Density of a Wooden Cube Submerged in Water
- psycovic23
- · Replies 4 ·
Moment of Inertia for a Sphere with Lead Coating
- MAPgirl23
- · Replies 6 ·
Max and min frequencies of a capacitor
- laminatedevildoll
- · Replies 4 ·
Are Electric and Magnetic Fields Zero for a Moving Charged Particle?
- harhar
- · Replies 6 ·
Dynamics - Finding the Net Force
- AnthonyC
- · Replies 20 ·
Problems involving maximum and minimum values
- imbecile
- · Replies 5 ·
Proving Thomae's Function f(x) Not Differentiable"
- limdaesung
- · Replies 2 ·
Solving Rolling Sphere on Sloped Plane: Mass, Friction, & Acceleration
- MAPgirl23
- · Replies 5 ·
A question regarding acceleration
- anthonyy
- · Replies 4 ·
Is Frictional Force Only Dependent on Weight and Not Surface Area?
- michaelw
- · Replies 7 ·
Understanding Action and Reaction Forces: A Sketch Guide for Beachgoers
- RavenXGb
- · Replies 4 ·
What are some project ideas for an AP Physics class involving electricity?
- katie14618
- · Replies 3 ·
How Do You Calculate Total Pressure in Mixed Gas Systems?
- ravadongon
- · Replies 3 ·
Understanding Limits to Solving Two Common Questions
- DieCommie
- · Replies 7 ·
Solving for u & A: Help Appreciated!
- DivGradCurl
- · Replies 2 ·
Integration by Parts of <C> i just cannot do
- Rachael_Victoria
- · Replies 2 ·
How Do I Solve These Electromagnetism Multiple Choice Questions?
- seiferseph
- · Replies 13 ·
Solving Cosmology Problem: Helium Ionization at Recombination
- Dracovich
- · Replies 2 ·
Fatal Pressure in Car Crashes with Airbags & Seatbelts
- Frank_Horrigan
- · Replies 3 ·
Forces on roller coaster doing a loop
- UrbanXrisis
- · Replies 3 ·
Linear Algebra Basics: True/False Questions and Rank Properties
- Tony11235
- · Replies 5 ·
Calculate Entropy Change for 1.6kg Water at 34°C and 2.0kg Water at 58°C
- Jayhawk1
- · Replies 12 ·
Eraser sliding down slope - Friction
- Kamataat
- · Replies 5 ·
How Much Mass Must Be Thrown Out for a Hot Air Balloon to Ascend Properly?
- Swatch
- · Replies 5 ·
Proving Roots of f(x) with Odd n ≤ 3
- Neoma
- · Replies 2 ·
Evaluating the Limit of f(x,y) at (0,y')
- Benny
- · Replies 5 ·
Proving the Annihilation of x^ke^{rx} by (D-r)^m
- mekkomhada
- · Replies 12 ·
Chemistry help: egg on a mountain.
- m0286
- · Replies 8 ·
How do you draw electron dot diagrams for pentyne?
- Anais
- · Replies 4 ·
Calculate Angular Acceleration of Rotating Door
- nutster
- · Replies 11 ·
Calculate Height of Falling Stone: 2.2m Window in 0.28s
- jena
- · Replies 6 ·
Calculate the change in entropy of the system
- squib
- · Replies 3 ·
Centripetal and tangential acceleration
- nutster
- · Replies 3 ·
Calculating Tension and Velocity of Falling Bucket | Physics Problem Solution
- MAPgirl23
- · Replies 10 ·
Neutron star's angular velocity
- MAPgirl23
- · Replies 5 ·
Designing an Alien for Saturn: 5 Special Features for Survival
- blah blah
- · Replies 11 ·
What is the net compression in Pascals?
- sid_galt
- · Replies 14 ·
Can the Coefficient of Friction for Air Be Found for Building a Hovercraft?
- darnone
- · Replies 2 ·
Question regarding Physics Principles
- Nikola Tesla
- · Replies 4 ·
Why Does My Ideal Gas Law Calculation Differ from the Textbook?
- sghaussi
- · Replies 3 ·
Photoelectric effect and work functions
- bullroar_86
- · Replies 4 ·
Obtaining Energy from Stars: Grand Challenge
- InfernoSun
- · Replies 8 ·
How can I use Trigonometric substitution to evaluate this integral?
- Vadim
- · Replies 2 ·
Solve Water Displacement: General Chemistry Question
- PhHsSuga05
- · Replies 2 ·
Anyone know of good sites that teach you tricks to solving physics problems?
- michaelw
- · Replies 9 ·
Constructing a Unique Model Atom for a Science Project
- Linkk06
- · Replies 12 ·
Derivative of Symmetric Tensor with Respect to a Component
- JohanL
- · Replies 12 ·
How to Calculate the Force on a Charge in an Equilateral Triangle?
- laminatedevildoll
- · Replies 2 ·
Find the Answer to the Ball's Velocity Puzzle
- kamiltartar
- · Replies 2 ·
Deriving the energy of a magnetic dipole in a magnetic field
- trickae
- · Replies 8 ·
Temp Effects on Forward & Reverse Rate Constants
- BH20
- · Replies 2 ·
What Is the Value of k in This Normal Distribution Problem?
- gillgill
- · Replies 2 ·
How Wide is the Potential Well When an Electron Emits a Photon?
- Infinity
- · Replies 2 ·
Calculating Amplitude of Electromagnetic Waves 100 km from Earth
- vabamyyr
- · Replies 2 ·
Closed: How to Cope During Difficult Times
- nofx
- · Replies 2 ·
Probably a very easy length contraction problem
- .....
- · Replies 6 ·
Some specific questions about waves
- PinkSheep
- · Replies 2 ·
Mills Method of Inductive Inference
- kennethj67
- · Replies 4 ·
How do I calculate electric field at a point due to two charges in xy plane?
- Jchem
- · Replies 2 ·
Calculate the work done accelerating a proton
- bayan
- · Replies 2 ·
The Right Hand Rule: Direction of Ring Induced Current in Solenoid
- laminatedevildoll
- · Replies 3 ·
Inertia tensors (moment of inertia) code
- Aggrav8d
- · Replies 3 ·
How Do You Calculate the Width of a Slit in Single Slit Diffraction?
- drunkenfool
- · Replies 2 ·
Proving Bijections: Q and Q x X
- laminatedevildoll
- · Replies 3 ·
Example Showing (A x B) U (X x Y) ≠ (A U X) x (B U Y)
- laminatedevildoll
- · Replies 3 ·
Dynamics - Unbalanced Force - Probably Very Easy
- AnthonyC
- · Replies 2 ·
How Do You Convert Volts to Joules for Calculating Electron Velocity?
- icedevilwoot
- · Replies 6 ·
X-y components after a collision
- MAPgirl23
- · Replies 3 ·
Elastic Potential Energy and SHM test
- PhysicsinCalifornia
- · Replies 10 ·
Solving Impulse & Momentum Problems: Troubleshooting an Error
- verd
- · Replies 7 ·
Help with Moments Question Part II
- omairt2001
- · Replies 7 ·
How Is Charge Distributed on a Conducting Shell with a Central Charge?
- thechunk
- · Replies 3 ·
What is the solution to the equation y''' + 4y'' + 4y'=0?
- RadiationX
- · Replies 3 ·
Is this the general solution for the DE y''+4y' +20y=0 with initial conditions?
- RadiationX
- · Replies 2 ·
What are the potential energy equations for this system?
- devious_
- · Replies 6 ·
How Should Error Bars Be Placed in an Ohm's Law Lab Graph?
- fomenkoa
- · Replies 2 ·
Solving a Head-On Collision: Algebra Problem
- verd
- · Replies 10 ·
Analytic Geometry: Proving R Lies on Ellipse
- dajugganaut
- · Replies 4 ·
Finding G-Force & Pressure in Fluid Flow: Aluminium Sphere Case
- cogs24
- · Replies 4 ·
Calculus Questions: Help Solve 1.2m^3/min & 20km/h Challenges!
- Keyboard
- · Replies 10 ·
How to write matrices as tensors
- JohanL
- · Replies 5 ·
What Do You Get When You Multiply the Next Two Numbers in This Sequence?
- bblueblob
- · Replies 15 ·
How can the spacecraft's orbit be determined with no thrust from its engines?
- Hoppa
- · Replies 7 ·
Understanding Forced Oscillations in a Stretched Wire
- buyuk_turkiye_ufo
- · Replies 5 ·
How far does the catapult hurl the truck?
- honxkyu
- · Replies 8 ·
Relative Motion and acceleration
- ac2707
- · Replies 5 ·