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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Finding Highest Order Node & Antinode: Source Separation d & λ
- kthejohnster
- · Replies 2 ·
Thin rod nonuniform linear mass density
- Talltunetalk
- · Replies 1 ·
How long does it take for a plane to come to a stop in an emergency landing?
- tylerc1991
- · Replies 1 ·
Finding velocity function from a model of force
- Falken_47
- · Replies 2 ·
Circular Motion Problem: An Adventure inside Spinning Cylinders
- victoration1
- · Replies 1 ·
Projectile motion equation help
- Jeffeff
- · Replies 1 ·
Calculate Magnitude of Force to Push 10 kg Object 11m, Speed 2 to 5.2 m/s
- cthionic
- · Replies 2 ·
Work done by pulling block over surface.
- cthionic
- · Replies 5 ·
Frictional force on stacked objects
- moonbase
- · Replies 4 ·
Acceleration of a Bucket and Tension Forces
- PeachBanana
- · Replies 1 ·
Resistance-current characteristic
- eida
- · Replies 1 ·
What Velocity is Needed for a Rocket Pilot to Reach a Star in One Year?
- bunnyrabid
- · Replies 1 ·
Net Force on Wagon: Solving for Unknowns
- jono240
- · Replies 1 ·
Electric Potaential of two spheres
- crybllrd
- · Replies 5 ·
Finding the maximum kinetic energy of a harmonic oscillator
- apbuiii
- · Replies 2 ·
Does the colour of light change with a change in medium
- utkarsh009
- · Replies 2 ·
Coefficient of Friction when applied force is not horizontal to surface?
- CharmedForever
- · Replies 3 ·
Calculate Acceleration of 5kg Box w/ μ=.5 & 2kg Mass Falling
- Ozball
- · Replies 2 ·
Calculating Capacitor Charges with Dielectric Insertion
- jehan60188
- · Replies 2 ·
Projectile Motion Time Calculation for Big Bertha Gun in World War I
- andrewi7
- · Replies 2 ·
Why does (dr/dt)*θ = 0 when deriving Velocity?
- LearninDaMath
- · Replies 3 ·
Potential and field at two electric plates
- kirby2
- · Replies 3 ·
How Much Energy Does a Battery Supply to Charge Parallel Capacitors?
- physgrl
- · Replies 3 ·
Vector Force Problem: Understanding Horizontal Forces and Solving for Net Force
- 1MileCrash
- · Replies 2 ·
Calculating Focal Points of a Thick Lens
- PChar
- · Replies 1 ·
Calculate Capacitor Voltage from 0<t<3
- GirishC
- · Replies 3 ·
How Do You Calculate the Potential Energy of a Charge in a Square Configuration?
- mattdespat
- · Replies 1 ·
Define the potential to be zero at infinity
- diethaltao
- · Replies 7 ·
Mass vs. Acceleration Graph Proving Newton's Second Law
- erykah722
- · Replies 9 ·
# of Nodes / Branches of a Circuit
- eurekameh
- · Replies 3 ·
Given potential difference of X-ray machine find energy of X rays
- mattdespat
- · Replies 4 ·
Finding the Period of a Mass Connected to Two Springs in Series
- Opus_723
- · Replies 4 ·
Solve Forces & Graphs Physics Problem | RCXD Acceleration
- Thepotatis
- · Replies 1 ·
Find a reference frame where momenta of electron and proton are equal
- khfrekek92
- · Replies 5 ·
Finding current in a parralle wire
- monke
- · Replies 2 ·
Concentric Cylindrical Conducting Shells and Capacitors
- diethaltao
- · Replies 6 ·
Electron displacement between two parallel plates
- SoundZombie
- · Replies 2 ·
Help with a physics sound problem.
- maninthesuit
- · Replies 2 ·
How to calculate time for ticker tape to move from a point to another point?
- Mphisto
- · Replies 7 ·
How do I solve this problem? Finding the resultant vector
- a321
- · Replies 2 ·
What is the speed of the pitch?
- SirajK
- · Replies 6 ·
What is the math behind 'Inverted cup of water experiment'?
- Mr.Bajjgas
- · Replies 1 ·
Lens maker's equation used correctly?
- DannyPhysika
- · Replies 2 ·
Help with average velocity during a time interval
- dealdoe22
- · Replies 3 ·
Determing the direction of dl when calculating V
- kc8ukw
- · Replies 4 ·
How Do You Calculate Tension in a Rope Holding a Box on a Ladder?
- logearav
- · Replies 3 ·
Solving a Tungsten Filament Temperature Problem
- mr_coffee
- · Replies 6 ·
Inverted pendulum attached to cart, cart on frictionless surface & axes
- Number2Pencil
- · Replies 1 ·
Trouble with basic Vector Addition Problem
- ERoday
- · Replies 5 ·
Relativistic Rocket: Find Δv in Earth Frame
- Hebrew21
- · Replies 1 ·
Parabolic Projectile Motion problem.
- ssjcory
- · Replies 1 ·
Conservation of momentum and energy problem (Please check if my setup is right)
- Kinermatics
- · Replies 3 ·
Wow, tried helping a friend with a vector problem and I can't get it
- 1MileCrash
- · Replies 1 ·
Why is friction acting in the tangential direction?
- eurekameh
- · Replies 5 ·
Capacitor network finding potential
- kirby2
- · Replies 16 ·
Optimal Direction for Long-Distance Swimmer in Ocean Currents
- Mdhiggenz
- · Replies 1 ·
Finding the power of an elevator motor
- petefic
- · Replies 3 ·
Change guitar string tension and vibration
- Becca93
- · Replies 1 ·
Challenging Momentum of Collision Problem
- Baslim
- · Replies 1 ·
How does adding mass to a spring system affect its amplitude?
- Dr. S
- · Replies 2 ·
Area of ring = Circumference*dr
- teroenza
- · Replies 2 ·
Potential Difference from Given Efield
- SMA777
- · Replies 3 ·
Uniform Circular Motion Free Body Diagrams
- archelon
- · Replies 1 ·
How Do You Calculate the Tension in a String During Circular Motion?
- azncocoluver
- · Replies 7 ·
Acceleration of a car pulled by a block falling (pulley)
- testme
- · Replies 2 ·
Dipoles angular velocity when aligned with electric field?
- conov3
- · Replies 1 ·
How long does it take for the toboggan to reach the bottom of the slope?
- Sekonda
- · Replies 2 ·
How long does it take for light to reach Earth in a moving rocket ship?
- justinh8
- · Replies 9 ·
Help with Combining Oblique Vectors
- Ferny84
- · Replies 1 ·
What is the mistake in my series capacitors homework?
- Instinctlol
- · Replies 4 ·
Solving Long Jump: Find Take-Off Speed
- PhysicsCCR
- · Replies 1 ·
Finding an electric field vector
- Timebomb3750
- · Replies 3 ·
How Do You Choose Wire Type and Calculate Potential Difference for a Solenoid?
- jromega3
- · Replies 11 ·
Find time dependent torque needed to turn a wire loop in a uniform B field
- JFuld
- · Replies 1 ·
How do you find the diameter of a wire
- angiep410
- · Replies 5 ·
Maximizing Temperature in Identical Blocks with Constant Heat Capacity
- TheTank
- · Replies 5 ·
Momentum hw problem, steel ball dropped from h
- physics1311
- · Replies 1 ·
This one will tackle your physics skills it tackled mine
- mrdummy
- · Replies 38 ·
Work of Friction Done Opposing Force at an Angle
- awilhite
- · Replies 1 ·
Gravitation with conversions help
- lmm5arual
- · Replies 1 ·
Simple harmonic motion problem.
- blastissimo
- · Replies 4 ·
Bullet hits the ground on its return
- SAHM1500
- · Replies 5 ·
A particle P is projected from a point O with velocity
- VICKZZA
- · Replies 5 ·
What is linear acceleration in uniform circular motion?
- Capde10
- · Replies 1 ·
Calculating G: Simple Pendulum Experiment, problems?
- SimonChen
- · Replies 1 ·
Solving Projectile Problem: Initial Velocity from Cliff
- jysim
- · Replies 1 ·
Metal ball charged with electron orbiting
- conov3
- · Replies 26 ·
What Is the Initial Speed of a Projectile Fired from a Cliff?
- jysim
- · Replies 6 ·
Finding Angular Velocity from Known Angular Acceleration
- The-alexandra
- · Replies 1 ·
What is the Relationship Between Fan Blade Size and Energy Transfer in Fans?
- johnconnor
- · Replies 4 ·
Calculating Solar Energy at Earth's Distance from the Sun
- ldkz2524
- · Replies 1 ·
Solve speed with the help of f (x) to f ' (x)
- mimi.janson
- · Replies 7 ·
How to Determine Max Extension of a Spring in a Frictionless System?
- Avi1995
- · Replies 5 ·
Landing a 747 with only friction
- armolinasf
- · Replies 3 ·
Electric Potential two metal balls find final velocities
- Cisneros778
- · Replies 1 ·
Density change due to thermal linear expansion
- forestmine
- · Replies 11 ·
Calculating the Height of a Frictionless Loop Launch
- True__Fiction
- · Replies 2 ·
HELP WITH AP PHYSICS- 5 min drill Multiple choice easy?
- girlphysics
- · Replies 34 ·