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 Does Impulse Relate to Momentum Change in Physics Problems?
- wgajtdb311
- · Replies 7 ·
Why does a hockey puck conserve energy if friction causes it to stop?
- sky
- · Replies 9 ·
Why Do Capacitors Behave Differently in Series and Parallel Configurations?
- sdfsfasdfasf
- · Replies 20 ·
Effect of different magnetic fields on a magnetic dipole
- zenterix
- · Replies 25 ·
Planar Coil Rotating in a Magnetic Field
- bab72
- · Replies 1 ·
Electromagnetism problem: Merging of 2 charged drops of mercury
- Elj
- · Replies 2 ·
Uncertainty in velocity formula for rotating cylinder
- User849483
- · Replies 23 ·
Find the velocity of the stone just before it hits the ground
- chwala
- · Replies 16 ·
Two blocks in contact -- find the force between them
- lola9
- · Replies 14 ·
Can You Accurately Compare Bearing Slow Down Functions?
- Kristian311
- · Replies 4 ·
Help Calculating probability between 2 limits for the ground state
- Hennessy
- · Replies 28 ·
POWER - different approach, different results
- Iamconfused123
- · Replies 23 ·
Help with spring and energy balance concepts
- hello478
- · Replies 9 ·
How Does an Iron Deposit Affect Water Levels in Fluid Mechanics?
- germoneyswis
- · Replies 10 ·
When does Phobos collide with Mars?
- PMNIMG
- · Replies 72 ·
Calculation of torque and force on magnetic dipole near infinite wire
- zenterix
- · Replies 3 ·
Calculation of magnetic dipole moment of the Earth
- zenterix
- · Replies 8 ·
Final Charge of a Capacitor in a Circuit with Capacitors and Resistors
- Tofuwu6
- · Replies 9 ·
Does a Slowing Piano Exert More Force Than the Man Pushing It?
- mancity
- · Replies 3 ·
Why is a current ring approx a magnetic dipole from very far off?
- zenterix
- · Replies 7 ·
Where on a rigid body is a resultant force applied?
- zenterix
- · Replies 11 ·
Prove this equation for projectile motion
- Winner123
- · Replies 11 ·
How Does Stress Affect a Hollow Pipe When Force Is Uniformly Applied?
- Mohmmad Maaitah
- · Replies 6 ·
Understanding MIT's applet on sound with Fourier coefficients
- zenterix
- · Replies 3 ·
Find moment arm of resultant force of two forces applied at two points
- zenterix
- · Replies 3 ·
A sphere suspended from a cord -- Find the tension
- lola9
- · Replies 13 ·
How Is Potential Energy Converted to Kinetic Energy in Physical Systems?
- Sidhshah1234
- · Replies 6 ·
Why don't we find the angular magnification of objective lens in microscopes?
- Shreya
- · Replies 10 ·
Physics 1 Parabolic Motion Question Confusion
- Confused_Student33
- · Replies 15 ·
Acceleration in uniform circular motion is uniform or non-uniform?
- Darshit Sharma
- · Replies 55 ·
Difference between resonance in undamped vs damped mass-spring-dashpot
- zenterix
- · Replies 17 ·
Amplitude of harmonic oscillation given position and velocity
- zenterix
- · Replies 4 ·
Modeling a mass falling from one side of the Earth to the other
- zenterix
- · Replies 1 ·
Elastic Potential Energy - Positive or Negative?
- amandela
- · Replies 5 ·
How Do You Solve a Non-Equilibrium Pulley System with a 154 Degree Angle?
- ashley2024
- · Replies 10 ·
Where Did I Go Wrong in My Refraction Problem Solution?
- Florian Geyer
- · Replies 11 ·
Sphere rolling down incline and looping: applying conservation of energy
- SiRiVeon
- · Replies 10 ·
Elastic potential energy - different methods, different results
- Iamconfused123
- · Replies 2 ·
Work Done and Acceleration (Mistaken Answers?)
- amandela
- · Replies 5 ·
Faraday's law: induced EMF vs. flux change sign contradiction
- sdfsfasdfasf
- · Replies 7 ·
How can I find the sustain time of an electric guitar?
- Krazen017
- · Replies 7 ·
On what does gravity assist depend? (possibly with sources)
- renobueno
- · Replies 3 ·
Calculation of the magnetic field of four quarter circles
- katarameno
- · Replies 12 ·
Magnetic Field Due To Wire Of Semi-Circular Cross Section
- Aurelius120
- · Replies 5 ·
Calculate the gravitational force between these three masses
- hraghav
- · Replies 4 ·
Finding the angle of a resultant vector with the law of sines
- Remle
- · Replies 14 ·
Two astronauts throwing billiard balls in space collision
- in33dphysicshelp
- · Replies 8 ·
Understanding work in translation and rotation of a magnetic dipole
- zenterix
- · Replies 1 ·
Current through a circuit when the key is open
- Darshit Sharma
- · Replies 42 ·
Current flowing in an open circuit
- laser
- · Replies 9 ·
Change of internal energy during linear transformation
- TheEyeOfInnos
- · Replies 11 ·
How does one calculate the number of photons striking a surface per second?
- Danielk010
- · Replies 12 ·
Find net external work of a system w/ 2 objects w/ opposite forces
- dcmf
- · Replies 8 ·
Internal energy won't add up to 0 in cyclic process
- giraffe714
- · Replies 1 ·
Finding support reactions for beam with distributed load
- Grandpa04
- · Replies 3 ·
How Do You Begin Creating a PV Diagram from Complex Data?
- Samir_Khalilullah
- · Replies 21 ·
Instantaneous Acceleration Given Equation for Velocity
- amandela
- · Replies 7 ·
Minimal rotational kinetic energy for a gyroscope to precess
- Malwina
- · Replies 33 ·
How does this potential divider circuit work?
- Dr. Who
- · Replies 1 ·
Why does a block on a vertical spring fall more than the equilibrium distance?
- I_Try_Math
- · Replies 18 ·
Understanding relative velocity in 1D elastic collision
- zenterix
- · Replies 15 ·
Stefan-Boltzmann's Law. How to apply to the Sun
- PMNIMG
- · Replies 8 ·
Why Does Surface Tension Allow Bubbles to Form Despite External Pressure?
- tellmesomething
- · Replies 3 ·
Solving for cycling velocity with headwind and tailwind sections
- martonhorvath
- · Replies 8 ·
Why does levitation distance not decrease when gravitational force increases?
- tanmays1
- · Replies 1 ·
Sign of Work (Negative or Positive)
- Ineedhelpwithphysics
- · Replies 4 ·
Kinetic energy in center of mass reference frame
- zenterix
- · Replies 3 ·
How Can Derivatives Determine Speed in Physics Problems?
- emily-
- · Replies 20 ·
Work Pulley Problem with constant speed
- Ineedhelpwithphysics
- · Replies 2 ·
A ball is thrown w/initial speed vi at an angle 𝜃i with the horizontal
- Rudina
- · Replies 5 ·
Spinning a Bucket to measure gravity with the parabolic surface of the water
- Samir_Khalilullah
- · Replies 17 ·
Angular acceleration of plank hanging off edge with a weight
- pbnj
- · Replies 7 ·
Compare the conductance of an insoluble salt with soluble one
- Aurelius120
- · Replies 2 ·
Circuit with potential difference across battery being zero?
- zenterix
- · Replies 3 ·
How Do You Calculate Wire Extension Under Sudden Loads?
- giodude
- · Replies 15 ·
Final velocity of the barbell dropped after a dead lift
- Rudina
- · Replies 7 ·
How can I calculate the Density and Volume of a mechanical mixture (atoms)?
- bumblebee77
- · Replies 6 ·
Why do the headlights on the car become dim when the car is starting?
- zenterix
- · Replies 4 ·
Why Is Energy Released in Nuclear Decay Equal to Change in Binding Energies?
- sdfsfasdfasf
- · Replies 13 ·
Translational Equilibrium Practice problem
- hraghav
- · Replies 2 ·
Worst-case power consumed by a circuit with MOSFETs
- zenterix
- · Replies 2 ·
Flux linked with circular coil vs solenoid
- Aurelius120
- · Replies 14 ·
Can Two Particles Have Multiple Collisions in a Single Interaction?
- sdfsfasdfasf
- · Replies 17 ·
How force on atom in diatomic molecule varies with distance
- I_Try_Math
- · Replies 12 ·
Electromagnetic Induction in AC circuits
- Cal66
- · Replies 3 ·
Using energy considerations to analyse particle motion
- I_Try_Math
- · Replies 3 ·
Dragging an object: what is Fmin and magnitude of acceleration?
- tomiharv
- · Replies 3 ·
Comparison between two Tippe tops
- abrahamabraham
- · Replies 1 ·
Why does mass not affect sliding speed down an inclined plane?
- MeesaWorldWide
- · Replies 4 ·
Find the value of ##θ## and frictional force acting on the block.
- chwala
- · Replies 5 ·
Find the Tension in the cable when the lift is moving at constant speed
- chwala
- · Replies 3 ·
Using energy considerations to determine speed
- I_Try_Math
- · Replies 4 ·
Series RLC circuit connected to a DC battery
- Meow12
- · Replies 12 ·
Finding the center of mass of a piecewise function
- JorkThePork
- · Replies 5 ·
Train length contraction vs Lorentz transformation at 0.6c
- FeynmanFtw
- · Replies 36 ·
Final speed of particle far away from rings with opposite charges
- risakapal
- · Replies 9 ·
Is the Total Energy Change in a Closed System Always Zero?
- zenterix
- · Replies 8 ·
Sound absorption/Acoustuic attenuation coefficeint (α(ω)) of PVC foam?
- Marcogoodie
- · Replies 1 ·
Is potential energy defined only for internal conservative forces?
- zenterix
- · Replies 15 ·