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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Thermodynamics work required per unit mass problem
- nineeyes
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Solve 2D Vectors Problem: Ferry Boat Crosses River
- jen333
- · Replies 4 ·
Refresh my memory on centripital force/acceleration
- benji
- · Replies 2 ·
Integration: Proof of Sine Powers Int. Formula
- DivGradCurl
- · Replies 2 ·
What are the readings on the two connected spring scales?
- erinnn
- · Replies 2 ·
Period of small oscillations for a suspended hoop
- squib
- · Replies 5 ·
Why Does a Skier Go Airborne at h=R/3 on a Hemispherical Hill?
- PhysicsinCalifornia
- · Replies 4 ·
How Does Charge Distribution Affect Electric Field in Nested Cylindrical Shells?
- Fanman22
- · Replies 14 ·
Magnetic field strength for electron beam in TV tube
- shikagami
- · Replies 2 ·
How Much Force Does Wind Resistance Exert on a Vehicle-Mounted Sign?
- Taiki_Kazuma
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Volume of water overflow from heated copper pipe in heating system
- Seiya
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Round table overturn mass and cube sliding vs tipping friction
- ninjagowoowoo
- · Replies 2 ·
Second-order partial derivatives of f(x,y)=x³+x²y+x+4
- jzq
- · Replies 5 ·
Calculating Spacing Using Ideal Gas Law
- cyberdeathreaper
- · Replies 2 ·
How Can I Quickly Solve Basic Physics Problems for My Course?
- kathryn
- · Replies 2 ·
Angular SHM and spring oscillation problems
- adamc637
- · Replies 2 ·
Calculating Electric Field Energy
- bertholf07
- · Replies 4 ·
Finding planet density from satellite orbital period
- ninjagowoowoo
- · Replies 2 ·
Estimating Speed and Distance for Traffic Light Troubles
- limitapproaches0
- · Replies 4 ·
What is the Electric Field for a Charged Sheet at Different Distances?
- Fanman22
- · Replies 3 ·
Very fast right hand rule question
- michaelw
- · Replies 3 ·
Torque, Force, magnetic moment ()
- EvaBugs
- · Replies 8 ·
Simultaneous non-linear equations
- HallsofIvy
- · Replies 8 ·
What Is the Integral of Functions Like x^x, e^[x^2], and cos[x]^[sin[x]?
- abia ubong
- · Replies 5 ·
Calculate Fringe Separation in Fabry-Perot Etalon
- janrain
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Converting 14.4 kcal to joules: multiply or divide by 4186?
- jmandas
- · Replies 3 ·
Calculating Horizontal Force of Toy Car Wheels
- saracen
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Why Doesn't Right Hand Rule #2 Work for This Capacitor's Electric Field?
- michaelw
- · Replies 4 ·
Water equalizing in connected cylinders with different areas
- maverick280857
- · Replies 2 ·
Questions on fluorine in water, Io's color, early semiconductors, and Triton
- Kaluence
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How Do Magnetic Fields Orient Around Perpendicular Current-Carrying Wires?
- michaelw
- · Replies 7 ·
Bowling ball slides off a 20 ft table
- HackaB
- · Replies 14 ·
Odd equation relating to springs and SHM
- K - Prime
- · Replies 2 ·
Solving a Magnetic Field Problem: Find Maximum Force
- leolaw
- · Replies 2 ·
Energy from gasoline vs uranium-235 fission comparison
- smij44
- · Replies 3 ·
Wave interference from breakwater gaps: finding wavelength from destructive interference
- jkom329
- · Replies 6 ·
Circular motion and velocity of car
- dalitwil
- · Replies 2 ·
Find the equation of the tangent line to the graph
- gillgill
- · Replies 3 ·
Why does electrostatic repulsion increase with nuclear binding?
- endeavour
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How Do You Calculate Velocity from a Position-Time Equation?
- chound
- · Replies 4 ·
Calculate Joules Used by 100W Light Bulb in 2 Hours
- DB
- · Replies 3 ·
Estimating Distance Between Solutions to ODE
- AKG
- · Replies 4 ·
General information about a Pendulum
- squib
- · Replies 3 ·
.Solving the Physics of a Seesaw Catapult
- Milchstrabe
- · Replies 121 ·
Finding distances between space vehicles and tracking stations
- joejo
- · Replies 9 ·
Solve Electron Velocity to Find Initial Energy State
- usfz28
- · Replies 6 ·
Why do antiderivatives of even functions not follow the usual graphing rules?
- DivGradCurl
- · Replies 6 ·
Is It Possible to Prove the Conservativity of These Force Fields?
- Hoppa
- · Replies 23 ·
Total Charge what? potential by line inter
- Phymath
- · Replies 6 ·
Finding capacitor values for series cells totaling 1 farad
- bertholf07
- · Replies 16 ·
How Much is the Rope Extended When the Circus Performer Hangs at Rest?
- Punchlinegirl
- · Replies 2 ·
Acceleration of a rotating system
- ahuebel
- · Replies 6 ·
Zero to the Power of Eight: 0 or 1?
- thomas576
- · Replies 3 ·
Does the Spectrum Change Underwater When Exposed to Light?
- stigelsm
- · Replies 8 ·
Geosynchronous orbit radius and radio signal travel time
- UrbanXrisis
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How does helium nucleus stability show nuclear force saturation?
- GD_Green
- · Replies 2 ·
Can kinetic energy be conserved without momentum conservation?
- Vasco
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What is the Buoyant Force on a Submerged Ping-Pong Ball?
- APool555
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Find the final temperature of this system
- ~angel~
- · Replies 6 ·
Can we say that living things have mechanical energy?
- knownot
- · Replies 18 ·
Two strings oscillating at same frequency in different harmonics
- evgeniy
- · Replies 4 ·
Does the Sequence Converge Uniformly Across Different Intervals?
- twoflower
- · Replies 6 ·
Charged particles moving through electric fields
- Nissen, Søren Rune
- · Replies 10 ·
Kinematics: Calculate Time & Velocity of Bomb from 4000m Altitude
- bADc
- · Replies 2 ·
Physics woes - online course - Rotation
- epohxe
- · Replies 5 ·
Find the minum pts. in a trig equation
- misogynisticfeminist
- · Replies 6 ·
How Do You Calculate the Final Temperature in a Mixed Water and Ice System?
- jdstokes
- · Replies 4 ·
Find angle of a triangle with given sides
- fork
- · Replies 4 ·
Integration by Parts: What's the Sign of that Last Term?
- tandoorichicken
- · Replies 2 ·
How do you sketch the derivative graph from a function graph?
- MiniTank
- · Replies 19 ·
Solving the logistic ODE y'(t) = (k/M)y(M-y)
- tandoorichicken
- · Replies 6 ·
Converting power in joules to number of quanta at 103.7 MHz
- Jacob87411
- · Replies 14 ·
Find the pressure p_1 due to a single particle
- ~angel~
- · Replies 7 ·
AC - frequency affect on RC voltage
- StonieJ
- · Replies 3 ·
What Phases are Present at Equilibrium in a Water and Ice Mixture?
- ~angel~
- · Replies 2 ·
How Do You Calculate Mass and Center of Mass for a Cone?
- Hoppa
- · Replies 13 ·
Corrosion, heat transfer and failure time for zinc-plated steel vat holding sulfuric acid
- omagdon7
- · Replies 2 ·
Yay, here's a fun one computational physics, but I already did the comp part
- schattenjaeger
- · Replies 1 ·
(LINALG) : Nullspace of transpose : N(A^T)
- FrogPad
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Quantum numbers for 4p² and 6s² electrons
- mathzeroh
- · Replies 3 ·
Demonstrating Kepler's Second Law - Equal Areas Swept Out in Equal Times
- UrbanXrisis
- · Replies 6 ·
What Can We Infer About Vector w Given Its Relation to u and v?
- Nx2
- · Replies 7 ·
How Do You Calculate the Slipping Angle of a Ladder Using Torque and Friction?
- Hoppa
- · Replies 15 ·
Permutation question (math) [ ]
- F|234K
- · Replies 10 ·
How Do I Solve These Systems of Differential Equations with Specific Conditions?
- Tarhead
- · Replies 2 ·
Relative speed: Horizontal distance travelled in a collision
- physicsfun
- · Replies 3 ·
Find the following determinants
- adc85
- · Replies 2 ·
Bowling ball with air resistance problem
- stangeroo
- · Replies 3 ·
Understanding the Inverse Square Law in Planetary Motion
- matheson
- · Replies 26 ·
Understanding Regression: Calculating Proportion of Change with r Values
- reallytrying
- · Replies 2 ·
Understanding Magnetism: Relating Magnetic Forces to Charged Particle Beams"
- deanchhsw
- · Replies 2 ·
RMS voltages in AC circuit with inductor, resistor, capacitor
- LakeMountD
- · Replies 6 ·
Rollercoaster ride problem, involving centripetal accelaration
- Hoppa
- · Replies 7 ·
Resistance change under temperature
- Pengwuino
- · Replies 6 ·
Converting W²/NJHz to SI base units
- joejo
- · Replies 38 ·
Electromagnetism and hydraulics
- edimeo25
- · Replies 2 ·
Answer A or D for Calc Integration Question
- UrbanXrisis
- · Replies 8 ·
How to Design a Concise Electrodynamics Homepage and Earn Extra Points?
- Oel
- · Replies 2 ·
Are there any composite numbers in this equation?
- heavyc
- · Replies 13 ·
Converting atomic mass units to kilograms
- kat_r
- · Replies 7 ·