Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
Threads
How does time dilation affect the perception of light speed in a moving plane?
- EgpYo
- · Replies 1 ·
Assumption on central forces between two particles
- AllRelative
- · Replies 1 ·
Finding displacement of the string given a function
- Potatochip911
- · Replies 4 ·
Find Electric Flux Through Surface 2
- cass
- · Replies 5 ·
Center of mass using Mach's restatement of Newtonian Mechanics
- AllRelative
- · Replies 8 ·
Minimal coefficient of friction
- Karol
- · Replies 6 ·
Are These Forces Conservative?
- geoffrey159
- · Replies 8 ·
Conservative forces for radial and force fields on parabolic path
- geoffrey159
- · Replies 3 ·
Final velocities from head elastic head on collisions
- henry3369
- · Replies 4 ·
Circular motion and work done by non conservative forces
- henry3369
- · Replies 4 ·
Circular motion, tension and angular speed
- Quadrat
- · Replies 16 ·
Force to raise a cylinder over an edge
- Karol
- · Replies 10 ·
Why ice-water warming ignored in latent heat problem
- stephenranger
- · Replies 7 ·
What is the work done by a tow truck pulling a car 1 km?
- Calpalned
- · Replies 3 ·
How Do You Calculate the Focal Length of a Concave Mirror with a Moving Image?
- premed_love
- · Replies 13 ·
Angular momentum and Quantum Number l
- krawls30
- · Replies 9 ·
SHM Question: What is the maximum extension of the spring?
- Alex Cooper
- · Replies 1 ·
Calculate the equivalent resistance
- Sylvia
- · Replies 5 ·
Finding initial velocity of basketball in kinematic equation
- Archit
- · Replies 4 ·
How long does it take for the car to catch up to the truck on a straight track?
- Bry2323
- · Replies 19 ·
Electric flux through cubical box
- toothpaste666
- · Replies 5 ·
Hydrostatic pressure torque on a hinged gate
- Feodalherren
- · Replies 11 ·
Archived Significant figures with vernier calipers and micrometers
- pgoel
- · Replies 2 ·
Conservation of relavistic energy
- Samuelriesterer
- · Replies 34 ·
Ocean waves parallel to the shore
- PhysicsKid99
- · Replies 2 ·
Finding angle required for equilibrium on a slope
- tissuejkl
- · Replies 12 ·
Calculating Wave Speeds of Steel Guitar Strings
- Ignis Radiis
- · Replies 2 ·
Solving for different masses in pulley system with KE
- jb007
- · Replies 5 ·
Simple harmonic motion oscillate. What is the total energy
- firezap
- · Replies 1 ·
Minimal force to turn over a tube
- Karol
- · Replies 2 ·
Work done on a puck pulled through a table hole via string
- minimario
- · Replies 6 ·
AC to DC Conversion: Determining Expected Q Factor
- whale
- · Replies 5 ·
Electric field between two metal plates
- toothpaste666
- · Replies 4 ·
Hi/ho problem -- Lens magnification
- premed_love
- · Replies 13 ·
Atwood machine at rest and released
- Poetria
- · Replies 8 ·
How far bullet travels in 2,5 seconds
- whatdoido
- · Replies 4 ·
Frequency of sound waves from vibrating wire
- whatisreality
- · Replies 6 ·
Cat and mouse kinetic energy with same speed
- Tyrannosaurus_
- · Replies 9 ·
Conservation of Energy in circular motion
- terryds
- · Replies 41 ·
Waves Find the phase constant from the graph.
- firezap
- · Replies 10 ·
Is my interpretation good? simple Kinetic E problem
- Tyrannosaurus_
- · Replies 6 ·
A non-conducting sphere, e-field and potential.
- timnswede
- · Replies 8 ·
How Do You Calculate the Velocity Components of a Sailboat Affected by Wind?
- iSimply
- · Replies 11 ·
Potential difference across two points in a circuit
- plazprestige
- · Replies 11 ·
Calculating Force and Acceleration for a Yoyo and Clock
- Julia Darko
- · Replies 8 ·
Collision of 2 balls on frictionless surface
- jojotank
- · Replies 8 ·
Pressure drop across pipe with water and mercury manometer
- Feodalherren
- · Replies 6 ·
Two ropes hold a 200N weight. Find the tension in each rope.
- Chrishtofu
- · Replies 1 ·
Why isn't current negative in this example?
- x86
- · Replies 1 ·
Superposition principle for potential?
- timnswede
- · Replies 25 ·
Coefficient of friction between cylinders
- Karol
- · Replies 13 ·
Expectation value of momentum for bound states
- blue_leaf77
- · Replies 6 ·
Finding the voltage of a circuit
- x86
- · Replies 2 ·
Faraday's and Lenz's law application
- cseil
- · Replies 2 ·
Force reactions of balls in a tube
- Karol
- · Replies 3 ·
Calculating the Force Constant of a Bungee Cord Using Newton's Laws
- evber
- · Replies 6 ·
Brightness of lamp connected to transformer
- songoku
- · Replies 17 ·
Normal force of a bead moving around a horizontal ring
- laurenm02
- · Replies 6 ·
Solving the Force on a 2kg Object on an Inclined Plane
- brake4country
- · Replies 11 ·
Venturi, how does fluid go from low P tube to high P tube
- M_Saint
- · Replies 1 ·
Solving for Φ(k) in Quantum Fourier Transform with ψ(x,0)=e^(-λ*absvalue(x))
- chris2020
- · Replies 2 ·
Proving Newton's third law invariant with Galilean tranfrom
- AllRelative
- · Replies 2 ·
Waves in a vertical hanging string
- Summer95
- · Replies 3 ·
Calculating velocity for water pressure
- arpon
- · Replies 21 ·
Oscillating springs in relativistic time frame
- Samuelriesterer
- · Replies 11 ·
Negative acceleration in suspended mass tension problem
- Tyrannosaurus_
- · Replies 3 ·
Statics problem involving several forces
- mechanim
- · Replies 12 ·
Finding moment equilibrium with moving joint and frictionless support
- mechanim
- · Replies 6 ·
Finding the Index of Refraction in a Prism
- Fan
- · Replies 1 ·
How does speed change when centripetal force and radius both double?
- brake4country
- · Replies 6 ·
How do I compute jerk in 2D space for a mouse tracking task?
- YoYojimbo
- · Replies 3 ·
Specific Heat Capacity of water in a kettle
- Dave Jones
- · Replies 8 ·
How Do We Determine the Type of Motion in a Crane Lifting Scenario?
- stephenranger
- · Replies 15 ·
Finding kinetic energy consevered after collision
- qwerty5050
- · Replies 4 ·
Find missing force for accelerating electron
- Trina
- · Replies 11 ·
What's the distance a sphere travels from inclined plane?
- GrimesA
- · Replies 24 ·
How Does Acceleration Relate Between Two Blocks in a Frictionless Pulley System?
- judas_priest
- · Replies 45 ·
RC discharge circuit for camera flash with capacitor and light bulb
- Lucille
- · Replies 4 ·
How do Kirchhoff's Rules apply to a circuit with multiple resistors in series?
- Sylvia
- · Replies 3 ·
Which Object is the Most Dense Based on Given Measurements?
- Drakkith
- · Replies 7 ·
Potential difference between wire and ground
- timnswede
- · Replies 6 ·
Lowest pressure that the student's lungs can create?
- Dennydont
- · Replies 21 ·
Total area of contact between tires and ground?
- Dennydont
- · Replies 15 ·
Coloumb's Law and Electric Dipoles question
- John Yi
- · Replies 3 ·
What is the kinetic friction coefficient?
- Kailee
- · Replies 3 ·
What Is the Minimum Energy for Neutron Production in a Lithium-Helium Collision?
- geoffrey159
- · Replies 3 ·
Pulling a cylinder - find final angular velocity
- RightFresh
- · Replies 16 ·
2D conservation of Energy and Momentum with *Three* unknowns
- Sjoyes
- · Replies 19 ·
Energy grade line for a pump system
- theone
- · Replies 1 ·
[QM] Addition of spin for normal and identical particles
- Coffee_
- · Replies 5 ·
1D Collision / Charges / Coulomb's Law
- julianwitkowski
- · Replies 13 ·
Probability density for related variables
- diegzumillo
- · Replies 2 ·
Two cylinders in contact come to final angular velocities
- Taylor Grubbs
- · Replies 2 ·
What is the velocity of the air flowing though the pipe?
- Siebo
- · Replies 12 ·
Finding distance -- Find the height of an object given ratio of two distances
- D.Man Hazarika
- · Replies 2 ·
What are the dimensions of A and B in the equation x = At2{1-exp(-t2/B)}?
- snovak216
- · Replies 9 ·
Rutherford's atom experiment problem
- Dana Fishel
- · Replies 4 ·
QM, the convergence of the harmonic oscillator function.
- Coffee_
- · Replies 2 ·
Free Fall - Calculating Origin/Release
- Tearsandrille
- · Replies 10 ·
How to find angle Electric field makes to x-axis?
- Dana Fishel
- · Replies 7 ·