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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Kinetic energy of a suitcase on a moving train
- engineer21394
- · Replies 7 ·
Force equilibrium with two cables at 65° above horizontal
- rpgnick85
- · Replies 9 ·
Normal acceleration of a car dropped from a cliff after 3 seconds
- mathmannn
- · Replies 6 ·
How to Calculate Shunt Resistance for Converting a Galvanometer to an Ammeter?
- dgresch
- · Replies 6 ·
Spacecraft position after thruster burn using momentum principle
- fillipeano
- · Replies 16 ·
Velocity of a Boat and Float vs. Water
- zaper
- · Replies 21 ·
How long was the ball in flight?
- Miike012
- · Replies 2 ·
Why did I get i2=0.8A instead of i2=1A using KVL?
- pyroknife
- · Replies 1 ·
Mutual attraction force - did I do something wrong?
- pyroknife
- · Replies 13 ·
A Sinusodial wave is propagating
- Firben
- · Replies 11 ·
Solving Thevenin Circuit with R1 Removed: Explanation and Calculations
- noswad
- · Replies 2 ·
Forced Oscillator where Damping is Negligible
- Becca93
- · Replies 4 ·
Find Velocity when Acceleration Vs Time Graph
- dgales4130
- · Replies 3 ·
Finding Frequency of an Oscillating Disc with a Hole
- Becca93
- · Replies 2 ·
Mechanics of materials exercise solution check
- niece of md.
- · Replies 3 ·
Proving the conservation of momentum when two masses are not equal
- Stan2309
- · Replies 3 ·
Magnetic field at point P from two wires using Biot-Savart's law
- Baydith
- · Replies 3 ·
Car collision using multiple formulas
- kzita
- · Replies 1 ·
Latent Heat, Some Density, and God knows what else
- platachog
- · Replies 5 ·
Placing charges with coulomb's law problem
- kirby2
- · Replies 11 ·
Converting Cartesian to Cylindrical Coordinates
- Shaheers
- · Replies 5 ·
Motorcycle accelerating and decelerating over 300m with different limits
- MMCS
- · Replies 12 ·
Volume of Stone submerged in Water
- scbeturner
- · Replies 16 ·
Kepler's Law and Non-terrestrial Orbits (Not Earth)
- Axoren
- · Replies 4 ·
Filling the wheel with air (ideal gas)
- songoku
- · Replies 9 ·
Drawing 2D Velocity Structures?
- justinh8
- · Replies 1 ·
Is the Moon's diameter relevant to finding gravitational force?
- Kratos321
- · Replies 1 ·
Conversion of Galvanometer to Ammeter
- Ilikecereal
- · Replies 6 ·
Solving a Cart Distance Problem: 18s to 21s
- bamber296
- · Replies 1 ·
Magnetic force on proton moving at 5×10⁶ m/s in 6×10⁻² T field
- jhcollaz
- · Replies 2 ·
Equivalent resistance with possible short circuit
- rhemmin
- · Replies 3 ·
Finding x and y Components of Vector Sum
- McAfee
- · Replies 2 ·
Finding Horizontal Displacement for Spring Cannon Launch
- monac
- · Replies 9 ·
Simple Harmonic Oscillation with given equation
- kgal
- · Replies 4 ·
Conservation of Energy (answer in Netwons)
- IBdoomed
- · Replies 10 ·
What Type of Mirror Creates an Inverted, Real Image Half the Object's Size?
- Phower Power
- · Replies 3 ·
When to use vector notation in velocity and position equations?
- monac
- · Replies 4 ·
Trying to understand how to make Motion Diagrams
- Dko
- · Replies 3 ·
Electric field outside a long cylindrical shell
- MeMoses
- · Replies 7 ·
Electric potential and conservation of energy
- maiad
- · Replies 9 ·
Rollback Distance Calculation for a Car on a Slope
- camel-man
- · Replies 2 ·
Determine the direction of movement of a point on wave
- songoku
- · Replies 5 ·
Angular frequency of mercury in U pipe
- songoku
- · Replies 4 ·
Doppler Effect; Two Moving Objects
- MAtkinson
- · Replies 3 ·
How many machines can a factory add before exceeding the 90-dB limit?
- j.c
- · Replies 5 ·
The cause of buoyancy in terms of the molecules
- TheLil'Turkey
- · Replies 2 ·
Energy stored in electrostatic field of uniformly charged sphere
- xdrgnh
- · Replies 5 ·
How Much Warmer Is Water at the Bottom of Niagara Falls?
- blackflub
- · Replies 6 ·
Finding surface gravity of a planet from its moon's orbit
- Kratos321
- · Replies 1 ·
Finding Potential Energy for Sech Wave Function
- v_pino
- · Replies 1 ·
Coulomb's Law Problem and net force
- Cisneros778
- · Replies 3 ·
Finding the resultant couple moment
- theBEAST
- · Replies 1 ·
What is the Charge on Two Suspended Pith Balls with Coulomb's Law and Tension?
- dancer2012
- · Replies 12 ·
How To Know When To Use Which Motion Equation
- justinh8
- · Replies 2 ·
How Much Water Fell on the City During the Storm?
- PhysicsCCR
- · Replies 3 ·
Electric Forces and Coulomb's Law Problem
- Cisneros778
- · Replies 2 ·
Total Charge on the Surface of a Drum
- y0tsubato
- · Replies 1 ·
Speed, Velocity and Acceleration Problems with Two Objects Involved
- CallMeMarvin
- · Replies 5 ·
Electric flux changing forumla variables
- kirby2
- · Replies 4 ·
Vector Projection Problem: Solving for Component in Given Direction
- Allenman
- · Replies 2 ·
What Is the New Electric Field When Charge and Distance Are Changed?
- kirby2
- · Replies 1 ·
Projectile Motion given only distances
- Bruarios
- · Replies 1 ·
Calculating Scattered Photon Energy and Recoil Angle in Compton Effect
- wolski888
- · Replies 4 ·
How Does Temperature Constancy Affect Atmospheric Pressure with Altitude?
- calculusisrad
- · Replies 2 ·
What is the magnitude of each fixed charge in coulombs?
- Cisneros778
- · Replies 5 ·
Calculating Total Moment and Distance from Point A
- Jellypa
- · Replies 4 ·
Buoyancy force of a hot-air balloon
- smeiste
- · Replies 6 ·
Electric field changing formula variables problem
- kirby2
- · Replies 1 ·
Simple point charge location problem
- kirby2
- · Replies 1 ·
Kinematics: Initial velocity of second rock if 2 rocks are thrown up?
- petitsreves
- · Replies 3 ·
Electric field at a point charge
- SchruteBucks
- · Replies 4 ·
What Force Does a Uniform Electric Field Exert on Charge q?
- kirby2
- · Replies 1 ·
Why Light Doesn't Deviate When Entering Semi-Circular Glass?
- Mphisto
- · Replies 12 ·
Flowerpot thrown upward from balcony: kinematics equations and sign conventions
- supernova1203
- · Replies 2 ·
Finding mass given force and acceleration
- MMCS
- · Replies 4 ·
Net force on charges at corners of equilateral triangle
- csgirl504
- · Replies 1 ·
Finding Maximum and Minimum Values of T for a Rotating Block in an Inverted Cone
- ExpoDecay
- · Replies 2 ·
General Help in Discrete Math/Geometry and Physics
- dekoi
- · Replies 6 ·
Electric potential of two spherical shells
- maiad
- · Replies 16 ·
Air resistance on a suspended object in motion
- shrutij
- · Replies 2 ·
A ball is thrown up solve for variables, kenimatics
- Rower93
- · Replies 1 ·
Relativistic Particle Decay: Strong, EM, Weak, or Gravitational Interactions?
- humanist rho
- · Replies 3 ·
Doped semiconductor-to find the resistance?
- humanist rho
- · Replies 2 ·
Effect of Instantaneous Velocity Change on Orbit
- PChar
- · Replies 6 ·
Simple sinosudial wave in string. What will be velocity of the particle?
- vkash
- · Replies 9 ·
Finding kinetic energy between parallel plates
- mirandab17
- · Replies 1 ·
2D Conservation of Momentum Question
- Techcom0
- · Replies 1 ·
Finding out the horizontal force required to make an object move.
- DPXJube
- · Replies 2 ·
Finding initial velocity and launch angle for golf ball off 46 m cliff
- caels
- · Replies 1 ·
Calculating Acceleration from Tennis Serve Data
- trynagetby
- · Replies 4 ·
What is the difference between the old and new wave function equations?
- QuarkCharmer
- · Replies 1 ·
Electric Potential due to a charged conductor(sphere within a sphere)
- maiad
- · Replies 7 ·
A question that asks you to figure out the mass of the moon
- Hmpca
- · Replies 4 ·
How Do You Calculate the Sun's Mass Using Mars' Orbital Data?
- Techcom0
- · Replies 1 ·
Acceleration caused by bending the knees
- shrutij
- · Replies 9 ·
Using 5 point charges, finding the charge of q1 and q2 using given force
- MissJewels
- · Replies 1 ·
Physics with Application; Acoustics; Trumpet
- MAtkinson
- · Replies 3 ·
Work done by engine pulling up a mass
- jiboom
- · Replies 18 ·
How to determine resonance of an open or closed pipe?
- kariibex
- · Replies 1 ·
The use of the word see in relativity
- homology
- · Replies 10 ·