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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How Do You Calculate the Acceleration of an Electron in a Magnetic Field?
- tnkfub
- · Replies 5 ·
What Is the Correct Velocity of a Bungee Jumper as the Cord Begins to Stretch?
- tink123
- · Replies 1 ·
How does a photo detector detect?
- einstein2603
- · Replies 2 ·
Understanding Absolute Error & Resistance of Wires
- khizman
- · Replies 9 ·
What Is the Expression for Acceleration in This MCQ?
- O.J.
- · Replies 6 ·
Understanding Normalized Equations in Wave Function Analysis
- Tyst
- · Replies 2 ·
Photodiode current measurement circuit diagram
- einstein2603
- · Replies 5 ·
Gradient Units: For Hooke's Law Graphs
- UltraMagnus
- · Replies 5 ·
Is torque a vector or a scalar quantity?
- JayDub
- · Replies 5 ·
Dependent motion - cable (rope) velocity
- leonel
- · Replies 1 ·
Why do I feel cold when a breeze hits me after swimming?
- danago
- · Replies 6 ·
Gravitational Acceleration near a Massive Black Hole
- mb85
- · Replies 3 ·
The Partitioning of Kinetic Energy
- In_Development
- · Replies 4 ·
Calculating Proton Energy for a Large Cyclotron Using Earth's Magnetic Fields
- cheez
- · Replies 6 ·
Kepler orbital trajectories and 'effective potential'
- alcoholicsephiroth
- · Replies 6 ·
What Are the Lengths of Open and Closed Organ Pipes Based on Their Frequencies?
- kellyneedshelp
- · Replies 2 ·
Why use sine for wall force but cosine for torque in ladder problems
- Mr. Snookums
- · Replies 3 ·
Heisenberg uncertainty principle (simple stuff)
- Kenny Lee
- · Replies 1 ·
String resonance with increased tension and standing wave pattern
- Alt+F4
- · Replies 2 ·
Finding equivalent impedance with capacitor in parallel
- thenewbosco
- · Replies 2 ·
Simple Harmonic Motion and Damping
- SnackMan78
- · Replies 2 ·
Muons at 0.8c and two-speaker sound interference
- Pseudo Statistic
- · Replies 1 ·
Rotation of rigid bodies: yo-yo
- syang9
- · Replies 1 ·
Physics Collision, Momentum, and Pendulum Problems for Exam Study
- skittlesj526
- · Replies 27 ·
How Thin Must the Oil Film Be to Appear Red?
- matt85
- · Replies 1 ·
Harmonic Oscillator kinetic and potential energies
- lydster
- · Replies 4 ·
How Do You Calculate Temperature and Pressure in Boyle's Law Problems?
- thunder
- · Replies 16 ·
Reassurance for Physics Coursework (Sound)
- Life|Time
- · Replies 3 ·
Period of a Simple Pendulum in a Moving Truck
- lydster
- · Replies 8 ·
Does reflecting all light make a material black?
- rad0786
- · Replies 2 ·
Circular arc of charge, integration question
- dimensionless
- · Replies 1 ·
How Do Car Audio Amplifiers Work?
- ndnbolla
- · Replies 2 ·
Calculating Error in Resistance Measurements
- khizman
- · Replies 2 ·
Modern Physics, Finding wave length problem wee
- mr_coffee
- · Replies 5 ·
Steam turbine work and power with unknown heat transfer
- JSBeckton
- · Replies 8 ·
Are My Wavelength and Frequency Answers Correct?
- nophun6
- · Replies 1 ·
Solve Faraday's Law: Find Current in Circular Wire
- kris24tf
- · Replies 4 ·
Finding the maximum height of an arrow shot in the air
- christinaa_s
- · Replies 3 ·
Finding torque in xyz coordinates
- whereisccguys
- · Replies 1 ·
Finding the mass of a cube with variable density using triple integrals
- loom91
- · Replies 14 ·
Accelerated charges radiate energy
- Kenny Lee
- · Replies 1 ·
Solve Beam Torque Problem: Find Cord Tension & Hinge Force
- Mr. Snookums
- · Replies 3 ·
Archimedes Principle and resonance
- Ukitake Jyuushirou
- · Replies 9 ·
Spaceship taking circular turn
- adp5025
- · Replies 3 ·
The Twin Paradox: Reconciling Time Dilation and Relative Velocity
- Thrice
- · Replies 2 ·
Calculating First Meeting Point of Pulses in a Stretched Wire
- nick85
- · Replies 2 ·
Calculating Power from Mass, Acceleration, and Time?
- BH_1984
- · Replies 2 ·
Calculate the wave speed in each string
- nick85
- · Replies 1 ·
Solving for the speed of a recoiling H atom
- silex
- · Replies 3 ·
Trouble Comprehending Energy and Work
- Fletcher
- · Replies 4 ·
Tell if the impedance is complex inductive
- Cyrus
- · Replies 1 ·
Why Does an Aluminum Ring Levitate Above a Magnetic Coil?
- cheez
- · Replies 1 ·
Calculating Specific Enthalpy of Air at Different Temperatures and Pressures
- JSBeckton
- · Replies 2 ·
Alpha particle accelerating from +220 V to -120 V
- spoonthrower
- · Replies 3 ·
What is the radius of a bowl if an ant can barely escape due to static friction?
- kd092
- · Replies 15 ·
What is the magnitude of the magnetic field B in an infinite sheet of current?
- Punchlinegirl
- · Replies 3 ·
Work output from a water turbine at 2000 kPa inlet
- JSBeckton
- · Replies 18 ·
What is the heat liberated when 10g of citric acid is combusted at 298k?
- rcs
- · Replies 2 ·
Momentum problem (motion of a system of particles?) Slingshot around moon
- demerdar
- · Replies 1 ·
Rotational Dynamics on a door knob
- Huskies213
- · Replies 3 ·
How Is Gravitational Potential Energy Calculated in a Rotating Stick Scenario?
- Kenchin
- · Replies 3 ·
Finding motor and frictional force for a 2 kg car accelerating to 16 m/s
- Alain12345
- · Replies 2 ·
Relationship between Hubble's Constant and the Age of the Universe
- griff
- · Replies 5 ·
Understanding Torque on a Current Loop in a Uniform Magnetic Field
- vg19
- · Replies 3 ·
Simple Harmonic Motion of a plank of mass
- Mishy
- · Replies 1 ·
Simple vector addition question
- christinaa_s
- · Replies 9 ·
Torque and Rotational Equilibrium
- stevesmith
- · Replies 1 ·
Angular impulse and angular momentum questions
- max1205
- · Replies 7 ·
Induced Current in Aluminum Ring Around Solenoid
- Punchlinegirl
- · Replies 2 ·
Water pressure vs. area of an object
- ebeck1
- · Replies 1 ·
Induced EMF and long steel beam
- Punchlinegirl
- · Replies 2 ·
Why does Bernoulli's theorem explain paper rising when you blow over it?
- sid_galt
- · Replies 3 ·
Calculating the Minimum Thickness of a Thin-Film for Destructive Interference
- BoogieL80
- · Replies 4 ·
What is the shape of a rotating mercury surface in an astronomical telescope?
- Greenhippo
- · Replies 2 ·
Torque and the Two Conditions for Equilibrium
- dontcare
- · Replies 4 ·
What is the Heat Flow through a Copper Bar?
- BooGTS
- · Replies 6 ·
Simple static equilibrium problem
- Mr. Snookums
- · Replies 1 ·
Water pump exit velocity with 1kW power input
- JSBeckton
- · Replies 12 ·
Understanding Work and Energy Transfers in Gas Processes
- lando45
- · Replies 4 ·
Water Pressure - Horizontal or Lateral
- 2know
- · Replies 1 ·
Finding decay constant and half-life from activity measurements
- lando45
- · Replies 4 ·
Is the Biot-Savart Law Based on Experimental Evidence?
- amcavoy
- · Replies 2 ·
Specific Heat Capacities/Latent Heat
- lando45
- · Replies 13 ·
Solve Buoyant Force Problem: Helium Balloon for Levitation - 70.1 kg Mass
- kellyneedshelp
- · Replies 4 ·
The Principle of Linear Superposition and Young's Double-Slit Experiment
- BoogieL80
- · Replies 2 ·
Which Molecule Velocity in a Gas is Greatest?
- lando45
- · Replies 5 ·
What is the direct of the induced current in the circular loop
- wazzup
- · Replies 2 ·
Using Fourier Analysis in a Senior Year Project: Any Experiment Ideas?
- cscott
- · Replies 1 ·
Which Hurts More - Cricket Ball or Plastic Bullet?
- cristovian
- · Replies 6 ·
Help with 4 momentum and collision problems
- JayDub
- · Replies 5 ·
Tension in rope between falling objects
- team31
- · Replies 3 ·
Determining Electric Field in a Ring-Shaped Charge Distribution
- Chemist
- · Replies 14 ·
Finding the potential for a charged disk on a test charge
- Jimykid86
- · Replies 7 ·
Power in lifting a ball and orbital period of a satellite
- xc630
- · Replies 4 ·
Force between 2 Atoms in solid state physics
- TheDestroyer
- · Replies 2 ·
Calculating Tangential Acceleration for Rotating Objects
- Huskies213
- · Replies 4 ·
Force exerted on a 16cm wheel traveling over a bump
- dekoi
- · Replies 2 ·
Transverse and Longitudinal Loads
- dekoi
- · Replies 2 ·
Direction of Velocity and Force in a Moving Copper Bar in a Magnetic Field
- donjt81
- · Replies 10 ·
Factors that affect the trajectory of a projected mass.
- JMatch
- · Replies 2 ·