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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Relativistic Spaceship moving past Earth
- PermaTrashed
- · Replies 15 ·
Energy principle and circular/ellipse orbits
- Uniquebum
- · Replies 2 ·
Solving a Sphere Problem: Help Needed for Physics Assignment
- hrappur2
- · Replies 9 ·
How Does Side Length Influence Electric Flux Through a Cube?
- kirby2
- · Replies 2 ·
A few conceptual problems with moments
- mHo2
- · Replies 1 ·
My answers seem ok but differ from book.
- jiboom
- · Replies 9 ·
Finding an Unknown Resistance of circuit
- SMA777
- · Replies 4 ·
Alternate River crossing problem
- Aeriankork
- · Replies 11 ·
Energy conservation vs momentum conservation in SHM
- nikhilarora
- · Replies 4 ·
Acceleration and tension in a system
- furor celtica
- · Replies 3 ·
What Happens When a Bar Magnet Meets a Solenoid?
- PhysicsJunkie
- · Replies 7 ·
Can Statics and Torque Principles Help Solve These Physics Problems?
- chambo622
- · Replies 3 ·
A cylinde with a piston in contact with a heat reservoir at 353 k.
- calculusisrad
- · Replies 1 ·
Final velocity of a proton through parallel plates
- Serendipitydo
- · Replies 1 ·
Using Vectors to Find Displacement and Angle
- sb13
- · Replies 2 ·
Electric Field due to a rod (1-dimensional)
- thoff430
- · Replies 1 ·
Maximum Centripetal Acceleration
- bearbratz
- · Replies 1 ·
How Do You Find the Total Energy and Speed of a Relativistic Particle?
- kikko
- · Replies 1 ·
Finding spring constant k in N/m
- jimko
- · Replies 3 ·
Three negative point charges lie along a line
- kirby2
- · Replies 3 ·
Uniform charged ball charge density problem
- kirby2
- · Replies 6 ·
Sonic Boom & Condensation Trails: Explained
- ponjavic
- · Replies 7 ·
How Does Sound Refract When Moving from Air to Water?
- j.c
- · Replies 1 ·
Calculating the Center of Mass & Force of Water on Half-Cylinder
- IntegrateMe
- · Replies 2 ·
Solving the Supersonic Speed Problem in Physics
- Schalchlin05
- · Replies 6 ·
Finding the Electric Force on a Rod by Linear Charge
- thiefjack
- · Replies 3 ·
Yes, the two expressions are equivalent.
- v_pino
- · Replies 2 ·
Different significant digits in uncertainty and data?
- PChar
- · Replies 1 ·
Flux for an Infinite charge line through a cylinder
- mrshappy0
- · Replies 1 ·
Pivoted beam with force at one end and spring attached to the other end
- snoopios
- · Replies 2 ·
Matrix optics; simple lens system
- mathman44
- · Replies 1 ·
Angle changes in Relativity (Shooting the Deathstar on a flyby)
- khfrekek92
- · Replies 2 ·
Error Analysis: Addition of Quantities with Uncertainty
- NachoNovo
- · Replies 4 ·
Finding the Minimum Angle for a Particle to Reach (x1,z1) from (0,0)
- PhysicsGente
- · Replies 22 ·
Projectile Motion Homework: Finding Maximum Height and Time
- LiiArch
- · Replies 4 ·
Does Bouncing Increase the Impact Force Required in Collisions?
- Judah
- · Replies 2 ·
Calculating Jupiter's Orbital Period Around the Sun: A Physics Problem
- mobius
- · Replies 4 ·
Im stuck in a couple electromagnetics problems
- formulajoe
- · Replies 10 ·
Finding The Initial Velocity & Angle
- green-insigni
- · Replies 10 ·
Coulomb's law electric field charge on y axis
- kirby2
- · Replies 7 ·
I'm having a lot of trouble converting units
- a1exander
- · Replies 5 ·
Projectile motion with acceleration and vectors
- bkmurphy
- · Replies 2 ·
Find V rms and MM using density
- bmartz
- · Replies 5 ·
Calculating Angle Between Vectors Using Cosine Law
- Uira
- · Replies 2 ·
Charged capacitors in series and both ends of wire connected
- jc345
- · Replies 1 ·
Motion in a Magnetic Field and TV
- MickOtto
- · Replies 1 ·
Reflecting glass and a convex mirror.
- Alpha Russ Omega
- · Replies 7 ·
Question about Tension 100 identical blocks
- sona1177
- · Replies 3 ·
Calculating Parallel Resistance: Uses & Effects
- Teachme
- · Replies 2 ·
Work done moving two charges together
- phosgene
- · Replies 3 ·
How Does Igniting Fuel at the Trajectory's Apex Affect Missile Debris Dispersal?
- gettix
- · Replies 1 ·
Solving Heat Transfer & Temperature Equilibrium Problems
- calculusisrad
- · Replies 2 ·
Doppler-shifted frequency problem
- hitman0097
- · Replies 3 ·
Effect of Tangential and Normal Forces on Orbital Velocity of Planets
- Numnum
- · Replies 1 ·
The question is: How can I find the magnetic field inside a long conductor?
- humanist rho
- · Replies 2 ·
Momentum and Impulse: Dropping an Object
- Judah
- · Replies 3 ·
F = ma 2007 Exam - Question #25 - SHM with a box in water
- physicsod
- · Replies 5 ·
Ideal Gas law and mole conversions
- Cfem
- · Replies 1 ·
Accelerating a Uniform Sphere Down an Incline
- physikx
- · Replies 3 ·
What Are the Temperatures of an Ideal Gas During an Adiabatic Expansion?
- coldjeanz
- · Replies 5 ·
How does pressure affect work done in ideal gases?
- Rapier
- · Replies 2 ·
AC Circuit Analysis: LCR & Resonance
- DTskkaii
- · Replies 9 ·
Stepper Motor Torque Characteristic Measurement
- DBoy00
- · Replies 4 ·
What is the electrical potential energy of a triangular charge configuration?
- stonecoldgen
- · Replies 3 ·
Impulse Momentum Theorem + Egg Drop?
- hannahd
- · Replies 3 ·
[objet falling] Air resistance / terminal velocity
- ihatephysics1
- · Replies 1 ·
Expert Witness Testimony: Accident Analysis
- InsTanCeZ
- · Replies 2 ·
Calculating Centripetal Acceleration in a Speed Skater's Turn
- Dylan6866
- · Replies 2 ·
Hey all, I really with this homework. Any help would be appreciated
- spartanpol
- · Replies 2 ·
How to calculate instantaneous acceleration?
- treyh
- · Replies 2 ·
Airbag Injuries & Stopping Distance After Accident
- Mdhiggenz
- · Replies 1 ·
Finding the current in a resistor
- Maddy315
- · Replies 3 ·
Proving Kirchoff's Laws algebraically
- shyguy79
- · Replies 8 ·
What Is the Electric Potential at the Origin Given Four Point Charges?
- jehan60188
- · Replies 2 ·
Circular mass, finding multiple variables
- vaironl
- · Replies 1 ·
What is necessary for an object to move?
- kaed
- · Replies 9 ·
Need a demonstration of interference in Waves
- Slason
- · Replies 1 ·
How Does a Diverging Lens Affect Image Position and Size?
- araicktavio
- · Replies 1 ·
Specific heat capacity and changing temperature of water
- rugby123
- · Replies 1 ·
Question about Centripetal Force (How it could make object glued to the wall.)
- Seydlitz
- · Replies 5 ·
Understanding the Induction of EMF in a Copper Tube by a Falling Magnet
- jsmith613
- · Replies 1 ·
Solving capacitor circuits? Help?
- Grandsatsuma
- · Replies 7 ·
Develop an expression for Temp as a function of time
- swmmr1928
- · Replies 12 ·
My calculations - youngs modulus
- jokiemay
- · Replies 3 ·
2 dimensional harmonic oscillator.find the energy eigenvalues?
- humanist rho
- · Replies 3 ·
Electric Fields using Gauss' law
- ParoXsitiC
- · Replies 7 ·
Calculating Average Lifetime of Particles at Rest
- DataGG
- · Replies 10 ·
Solving for cx: Specific Heat of Material X | Calorimetry Question
- davekardle
- · Replies 3 ·
Finding the current through a circuit
- eurekameh
- · Replies 11 ·
Solving a Simple RL Circuit: Find My Fault!
- rbwang1225
- · Replies 2 ·
Question about uncertainties after applying cos
- ZedCar
- · Replies 3 ·
Quantum-mechanical three-state system
- thecommexokid
- · Replies 1 ·
Finding Maximum θ for Apparatus Not to Roll Right
- usamo42j
- · Replies 1 ·
Where When Physics Problem with 1 obj going up and the other going down.
- ssjcory
- · Replies 6 ·
What is the density of the bird statue?
- xoxjojobxox
- · Replies 1 ·
Some issues with adding 2 vectors
- yesiammanu
- · Replies 7 ·
Static Equilibrium Pulley and free body diagram
- sharp12
- · Replies 3 ·
I have a problem finding the permitivity of acetate, can some one help me
- ChechoGomez
- · Replies 1 ·
Solving for Angular Frequency of 2 Masses on a Spring
- usamo42j
- · Replies 1 ·
Vaidity of rotational formulae for variable acceleration
- spaghetti3451
- · Replies 2 ·