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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Two supporting wires on flagpole at 30° and 45°
- prime-factor
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The Cliff Diver - Projectile motion
- Bottomsouth
- · Replies 3 ·
Energy of proton moving fast (special relativity)
- FatheadVT
- · Replies 1 ·
Cube Electric Field: Are Intersections Uniformly Distributed?
- bocobuff
- · Replies 3 ·
Finding a frequency to create a given amplitude in a spring
- ViXXoR
- · Replies 11 ·
What is the speed at which the object was thrown upward?
- jgens
- · Replies 2 ·
Instantaneous show of light why?
- wayneinsane
- · Replies 1 ·
How Do Light Waves Destructively Interfere in a Bubble Film?
- stickplot
- · Replies 3 ·
Finding fundamental frequency when string vibrates in eight antinodes
- nn3568
- · Replies 5 ·
Solve Football Hangtime: Calculate Time to Hit Ground
- beau21
- · Replies 6 ·
Speed when swinging from a rope?
- Bigdane
- · Replies 5 ·
How Is Friction Affecting the Motion of a Block on a Horizontal Surface?
- DeltaIceman
- · Replies 1 ·
Calculating Period of Hubble Telescope Orbit
- cstout
- · Replies 14 ·
Physics ball thrown in air question
- physics120
- · Replies 6 ·
What Is the Correct Velocity of the Standing Wave?
- Spirochete
- · Replies 1 ·
A wave generator produces 28.6 pulses in 4.10 s
- DDRchick
- · Replies 2 ·
Water falling = how much power?
- Bigdane
- · Replies 3 ·
Coaxial cable bounds in Gauss's law integration
- Aero6
- · Replies 2 ·
What Are the Speeds and Heights of a Colliding Ball and Clay Blob?
- Rookster
- · Replies 12 ·
How Do You Determine Zero Potential Locations on the X-axis with Two Charges?
- zooboodoo
- · Replies 1 ·
Block on an incline connected to a mass cord pulley 26˚. acceleration?
- aly1201
- · Replies 3 ·
Olympic Long Jumper's Takeoff Speed
- makdaddymac
- · Replies 3 ·
Calculating Work for a 71 kg Runner: Rest to 10.2 m/s Velocity
- CBears019
- · Replies 2 ·
Proton deflection in a capacitor
- badBKO
- · Replies 2 ·
Double your speed. (True/False)
- FAJISTE
- · Replies 10 ·
Determine Initial Velocity, Max Ht for Diver Proj. Motion HW
- TheShehanigan
- · Replies 3 ·
Solving Kinetic Energy Lab in Online Physics Class
- McSara
- · Replies 2 ·
Where do two knights collide if they ride toward each other?
- makdaddymac
- · Replies 18 ·
Speed Sliding down a hill (frictionless)
- Bigdane
- · Replies 2 ·
Motion with Constant Acceleration (True/False)
- FAJISTE
- · Replies 5 ·
Work, Vertical and Horizontally
- Bigdane
- · Replies 4 ·
Child sliding down 3.1 m frictionless playground slide at 37°
- papa_smurf493
- · Replies 10 ·
Calculating Div and Curl for some arbitrary vector fields
- Vuldoraq
- · Replies 5 ·
How Far from the Midpoint is the First Point of Constructive Interference?
- kendie16
- · Replies 9 ·
Infinite potential well and linear superposition
- Vuldoraq
- · Replies 6 ·
True or false statements about position vs time graphs
- FAJISTE
- · Replies 4 ·
Moment of inertia and integration
- nns91
- · Replies 14 ·
Calculating Safe Speed Range on a Banked Curve: Physics Question
- botab
- · Replies 1 ·
Showing px-Et is invariant using Lorentz Transformations
- Nitric
- · Replies 4 ·
Rectangular Resolution and Polygon Theorem
- wellgrin
- · Replies 1 ·
Why do the units for time appear twice in the units for acceleration
- mppaki
- · Replies 7 ·
Solid mechanics problem (pretty much a static problem)
- DyslexicHobo
- · Replies 1 ·
When does a car on an icy hill accelerate more, braking or free-sliding?
- Arsham
- · Replies 4 ·
Calculating Capacitance of Misaligned Plates
- Sawoah
- · Replies 1 ·
Coulomb's Law - Electrostatics
- sally2442
- · Replies 1 ·
Car Crash numbers not working?
- Phoenixtears
- · Replies 4 ·
Physics120 car collision question
- physics120
- · Replies 5 ·
Percent Length Contraction (check solution)
- Quelsita
- · Replies 4 ·
How Far and Fast Does the Car Travel to Overtake the Truck?
- J89
- · Replies 1 ·
I don't understand projectile motion
- Michael17
- · Replies 1 ·
How Can I Calculate the Force and Distance Between Protons in a Triangle?
- jawo3
- · Replies 3 ·
How Do You Calculate Electric Field and Potential Between Two Charges?
- aimslin22
- · Replies 3 ·
Two charged particles moving towards each other
- Nivlac2425
- · Replies 2 ·
Finding force and friction coefficient from fuel energy in a car
- pippintook
- · Replies 1 ·
Change in Momentum, Impulse, and Wall Impulse
- FlukeATX
- · Replies 3 ·
How Does Geometry Explain the r/R Ratio of .225 in Sphere Packing?
- Saladsamurai
- · Replies 17 ·
Calculating Time Dilation: Apollo's Record-Breaking Speed and Earth's Clocks
- Quelsita
- · Replies 2 ·
Calculating Electric Field Strength Between Two Disks with 24 Volt Power Supply
- yoleven
- · Replies 4 ·
Electric field of a charged ring
- Seraph404
- · Replies 2 ·
Kinetic Energy/Circular Motion and figuring out point charges
- succubus
- · Replies 5 ·
What's the deceleration of the car?
- canucklehead
- · Replies 6 ·
Drawing Electric Field Lines and Equipotential Lines
- jumbogala
- · Replies 6 ·
Uniform Motion Problem: How Far is the Island?
- Raizy
- · Replies 4 ·
Velocity and acceleration vectors problem
- estie
- · Replies 4 ·
Solve Acceleration Problem: Plot Distance vs Time
- estie
- · Replies 3 ·
Flux Calculation for Non-Uniform Electric Field on Cube Sides
- Melawrghk
- · Replies 6 ·
Electric flux through a multihedral face
- JJones_86
- · Replies 5 ·
Catch-up problem, can't seem to get it
- ArmavirMig
- · Replies 3 ·
Calculating Force and Torque on a Dipole
- haroharo
- · Replies 7 ·
The Time of Return for a Particle Undergoing Negative Acceleration
- estie
- · Replies 2 ·
Charge Distribution on a Conducting Shell
- Seraph404
- · Replies 2 ·
What is the Relationship Between the Mirror Equation and the Lens Equation?
- davidelete
- · Replies 6 ·
Maximum Resting Mass and Acceleration in a Friction System
- drsl92
- · Replies 6 ·
Why does brass expand more in a bimetallic strip if it's on the inside?
- marmot
- · Replies 1 ·
What Are the Limitations of Charge Values in Physics?
- JSapit
- · Replies 4 ·
What Is the Correct Way to Calculate Net Torque?
- trajan22
- · Replies 1 ·
How Do You Calculate the Bending Angle of a Bimetallic Strip?
- tejas710
- · Replies 6 ·
Can a vector and its torque cross product be parallel?
- Laurencio
- · Replies 4 ·
Calculate how many Kgs of water flows through the plant
- gigglin_horse
- · Replies 3 ·
Does Adding Weight to a Suitcase Increase Its Natural Frequency?
- mmMMgood1020
- · Replies 1 ·
Turntable Rotation with weight on edge v. in the center
- AROD
- · Replies 5 ·
What is the Total Displacement of a Car Driven in Multiple Directions?
- queenspublic
- · Replies 12 ·
Static Electricity and Triangles
- toasted
- · Replies 1 ·
How Do You Solve the Exploding Projectile Problem in Physics?
- Noob.com
- · Replies 7 ·
Calculating Force Exerted on 17-kg Box from 90-N Force Acting on 11-kg Box
- apples
- · Replies 4 ·
How Hot Does a Flashlight Bulb's Filament Get When Turned On?
- JJones_86
- · Replies 5 ·
Static Electricity and particles
- me_and_you
- · Replies 4 ·
How far does the bird travel before the trains collide?
- lauriecherie
- · Replies 5 ·
How Far Does a Charged Particle Travel Before Stopping Due to Repulsive Force?
- Nivlac2425
- · Replies 1 ·
Halliday Chapter 25: Final Charge of Uncharged Capacitors Problem
- george2
- · Replies 2 ·
Calculating external work done in electric field
- winterwind
- · Replies 4 ·
Electric field strength from a gold nucleus at closest approach distance
- mandos
- · Replies 1 ·
Relative Velocity of an escalator
- UMich1344
- · Replies 1 ·
Electric field at the center of curvature of a solid hemisphere
- Aero6
- · Replies 4 ·
Electron beam of a computer monitor
- JJones_86
- · Replies 2 ·
Thermodynamics of Mixing Ice and Water in a Glass Container
- haydn
- · Replies 3 ·
How Do You Solve Basic Impulse-Momentum Physics Problems?
- wellgrin
- · Replies 5 ·
Speed and total energy of a 0.45 m pendulum released at 15°
- toasted
- · Replies 2 ·
Finding velocity from displacement and time
- Starscream.
- · Replies 4 ·
Electric field just beyond surface of proton
- winterwind
- · Replies 1 ·