Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
Threads
Finding Current in a Circuit (to get current going through an amp meter)
- Schoomy
- · Replies 7 ·
Solving a Series Circuit with Ohm's Law
- starhallie
- · Replies 7 ·
Infrared radiation by comsol simulation
- vincent113
- · Replies 2 ·
Help With Physics Problem: 3D Force Diagram
- jmora
- · Replies 2 ·
Solve 2 Physics Problems: Vectors, Hockey Puck Motion
- neutron star
- · Replies 4 ·
In what direction is the scout's position relative to the campsite?
- neutron star
- · Replies 1 ·
Tripling fundamental frequency
- Strbarrytree
- · Replies 1 ·
How Does Circular Motion Impact Calculations in Physics Problems?
- jibjab
- · Replies 1 ·
When Should Air Resistance Be Considered in Free-Fall Calculations?
- hainam0101
- · Replies 3 ·
Find the tension in the guy wire and the force on the strut by the pivot.
- davidelete
- · Replies 3 ·
What is the Center of Mass of a Rod with Varying Linear Density?
- bolivartech
- · Replies 4 ·
Archer fish water drop launch angle to reach insect
- silencecloak
- · Replies 6 ·
Gravitational Force Between Planets
- jibjab
- · Replies 3 ·
Distance and Time (Having a Mental Block.
- PcStudent
- · Replies 1 ·
Electron Velocity from Linearly Increasing Acceleration Graph
- emyt
- · Replies 19 ·
How Do You Calculate Gravitational Force Correctly?
- pookisantoki
- · Replies 1 ·
Train traveling at constant velocity - time and unit conversion
- PcStudent
- · Replies 3 ·
Capacitance of concenctric spheres
- mitleid
- · Replies 3 ·
Calculating the Minimum Work Needed to Push a Car Up an Inclined Plane
- IMGOOD
- · Replies 9 ·
Deriving range equation for shot put projectile motion
- Brereton55
- · Replies 1 ·
K-work by tension and gravity on box on 30° incline
- chrisfnet
- · Replies 7 ·
Net force, electric field and potential
- tag16
- · Replies 1 ·
Is My Kinematics Problem-Solving Approach Correct?
- chrisfnet
- · Replies 1 ·
Easy question Newtons 1st law of motion, applying force to a hockey puck
- offbeatjumi
- · Replies 2 ·
Centripetal Force Skater Speed Question
- jibjab
- · Replies 2 ·
Three masses on pulley: finding acceleration of m2
- miamirulz29
- · Replies 5 ·
Stone Throw, Found answer but don't understand how ?
- Monocerotis
- · Replies 2 ·
Does a football kicked at 22 m/s clear a 3.05 m crossbar 35 m away?
- Osbourne_Cox
- · Replies 25 ·
Centripetal acceleration and airplane lift
- farleyknight
- · Replies 5 ·
Solving Kinematics: Police Car Chasing Speeders
- Rikochet
- · Replies 1 ·
Calculating Net Charge on a Metal Sphere with Added Electrons
- osulongboard
- · Replies 1 ·
Rank Resistances: A, B, C, A+B, B+C, A+B+C
- Firecloak
- · Replies 1 ·
Velocity of a ball rolling down a ramp (and onto the floor)?
- burberryblue
- · Replies 1 ·
Angular Spread Of Blue and Red Light Through Plastic
- fs93
- · Replies 1 ·
Two Blocks being pulled until one slips
- indietro
- · Replies 5 ·
The minimum radius of a plane's circular path
- shootingrubbe
- · Replies 6 ·
Projectile range equation with different launch and landing altitudes
- polak333
- · Replies 4 ·
How Do You Calculate the Tension in a Sleigh Rope with Friction and an Angle?
- Peterr13
- · Replies 8 ·
Application of Fick's First law (diffusion problem)
- jokkon
- · Replies 3 ·
How Fast Can Two Blocks Move Without Sliding Apart?
- chris097
- · Replies 3 ·
Finding time for spring scale to pull 1.5 kg object 2.7 m
- DrDanger
- · Replies 1 ·
A Simple-ish Kinematics Problem
- Lancelot59
- · Replies 2 ·
Charge on cylindrical capacitor
- esmmajor
- · Replies 3 ·
Block of Sandpaper along the ceiling
- indietro
- · Replies 3 ·
How Do You Calculate Tension in a Tow Rope for a Car on a Ramp?
- jiwon
- · Replies 1 ·
Centripetal force on a turning bus
- bettysuarez
- · Replies 4 ·
Proof of the derivative of delta function
- rocky3321
- · Replies 1 ·
Find Force, Net Force, Acceleration & Final Speed
- shar_p
- · Replies 4 ·
Relative Humidity and Vaporization
- klutchshot
- · Replies 2 ·
Calculating Time of Impact for Released Ballast Bag in 2D Kinematics
- sportzmaniac
- · Replies 2 ·
How Far Will the Spring Compress When a 1.5kg Object Is Dropped?
- semc
- · Replies 4 ·
Calculate the center of mass on the force plate
- Jim Newt
- · Replies 1 ·
Resistive force at constant velocity freewheeling down a slope
- ocfx
- · Replies 10 ·
How Do You Calculate Acceleration with Different Masses and Friction?
- Chuck 86
- · Replies 5 ·
What Determines the Net Force Acting on a Point?
- godfather183
- · Replies 4 ·
Projectile motion over a 20m fence with known angle
- hisoko
- · Replies 6 ·
Projectiles and the Kepler problem
- luisgml_2000
- · Replies 4 ·
Velocity of Propagation of a wave
- jumbogala
- · Replies 3 ·
Moving an object with constant force(N) in x direction
- Kaxa2000
- · Replies 2 ·
Acceleration and Tension of two masses on an inclined plane with friction.
- Imuell1
- · Replies 2 ·
How do you verify that A·B = B·A for vectors?
- BillMath
- · Replies 1 ·
Effective focal length of two plano convex
- delgado
- · Replies 1 ·
How Does Increasing Engine Power Affect Race Time for a Funny Car?
- vebes02
- · Replies 1 ·
Simple quesiton involving Tension of a cable supporting a beam
- mike41
- · Replies 1 ·
Microscope magnification question
- academi4
- · Replies 1 ·
Angular Velocity: Find Launch Angles for Projectile
- trigunesq
- · Replies 1 ·
What is the difference in spectra between a sodium lamp and a candle flame?
- bettysuarez
- · Replies 2 ·
Internal Resistance of a Real Battery
- Oijl
- · Replies 4 ·
What does my teacher want me to find?
- twotaileddemon
- · Replies 2 ·
Inclined Plane(s) Involving Forces
- culex-knight
- · Replies 1 ·
What diameter wire should be used for particular resistance?
- Kastner86
- · Replies 1 ·
What is an equation for distance which relates the jerk and snap?
- warfreak131
- · Replies 1 ·
What is the resultant displacement of the newspaper delivery route?
- ashonte
- · Replies 10 ·
When is the equation FD = 1/4 AV^2 false and what is the error in the equation?
- jason bourne
- · Replies 2 ·
Wave Interference Angle Calculation
- wilson_chem90
- · Replies 5 ·
How Does a Heavy Ball Hanging by a Thread Demonstrate Gravity and Tension?
- Kaxa2000
- · Replies 1 ·
Projectile Motion Ball Drop: Solving for Initial Velocity with Given Angles
- Oblivion77
- · Replies 1 ·
Interesting Projectile Motion problem
- Mattowander
- · Replies 7 ·
What Is the Minimum Weight of Block C to Prevent Block A from Sliding?
- farleyknight
- · Replies 9 ·
Pulley problem involves Friction static and Kinetic problem
- Leocardinal
- · Replies 1 ·
Equivalent resistance/ geometric resistor network
- Goddar
- · Replies 7 ·
Kinetic friction in terms of velocity
- farleyknight
- · Replies 6 ·
How much do textbook solutions usually round?
- emyt
- · Replies 1 ·
Determining the Speed of a Cylinder in a Cable and Pulley System
- KillerZ
- · Replies 5 ·
Calculating Vertical Acceleration and Climb Time for Aircraft with Propeller On
- Pogorz
- · Replies 7 ·
Two and Three dimensional motion
- KL90
- · Replies 1 ·
Free fall question, where has my reasoning gone wrong?
- emyt
- · Replies 64 ·
How Does Changing Wire Resistance Affect EMF in an AC Generator?
- bettysuarez
- · Replies 1 ·
Vector Diagram of Forces Acting on a Forearm
- Emethyst
- · Replies 7 ·
Projectile motion of a bullet question
- Confused17
- · Replies 1 ·
What is the maximum speed of this car?
- RustyComputer
- · Replies 5 ·
Velocity Acceleration and Displacement
- Shanice80
- · Replies 1 ·
Calculating Distance and Height of Ball w/ 18° Loft & 10.9s Air Time
- @d@m
- · Replies 1 ·
Linear Momentum and Conservation of Energy Question
- Punkyc7
- · Replies 14 ·
Vectors plane question using components
- KL90
- · Replies 3 ·
How Does Switching Affect Bulb Brightness in an RC Circuit?
- TwinGemini14
- · Replies 3 ·
Voltage Needed for a Proton to Arrive at Sphere at A Certain Speed
- chunkytuna21
- · Replies 11 ·
Calculating Displacement and Distance Traveled in a Vector Problem
- xkarenx
- · Replies 3 ·
Calculating Q for a Driven Harmonic Oscillator at Resonance
- LBloom
- · Replies 9 ·