Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
Threads
Projectile Motion problem with Plane dropping package
- Knights18
- · Replies 2 ·
When should I use Gauss's Law for calculating electric fields?
- wumbology
- · Replies 1 ·
How do I use physics equations for this?
- netrunnr
- · Replies 10 ·
Highest order node and antinode with source separation d and wavelength 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 ·
Finding vertical displacement as a function of horizontal displacement
- 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 ·
How do I find acceleration with friction in a pulley system?
- 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 ·
RCXD car accelerating down a 30° hill with driving force and friction
- 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 ·
Beat frequency from 1.5% tension decrease in cello string
- maninthesuit
- · Replies 2 ·
Finding time intervals from ticker tape dot spacing
- Mphisto
- · Replies 7 ·
Resultant displacement from four coplanar vectors
- 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 ·
Average velocity of particle from x=21+22t-6t² between t=1s and t=3s
- dealdoe22
- · Replies 3 ·
Why does 1/2at² give a different answer than the triangle area formula?
- Ste
- · Replies 10 ·
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 on frictionless cart without applied force
- 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 ·
Elastic collision momentum and energy equations check
- Kinermatics
- · Replies 3 ·
Hiker returning to trailhead with three displacement vectors
- 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 ·
Finding resultant of three oblique vectors with angle notation
- 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 ·
Maximum temperature in three identical blocks starting at T₁, T₁, T₂
- 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 ·
Height where gravitational field is 0.6 times surface value on planet B
- 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 ·
Finding speed from position function using derivatives
- 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 ·