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 can I simplify a network of capacitors using a Y-Δ transformation?
- hurz
- · Replies 7 ·
I0=V/RR=(xL-xc)/tan\phiPAv=1/2VI0cos\phiMax Current in RLC Circuit @ 1759 Hz
- eestep
- · Replies 2 ·
Finding tension given densities?
- LOannie234
- · Replies 1 ·
How Can You Measure the Force of a Punch?
- Jesstilla
- · Replies 2 ·
Two circular discs spaced apart from a parallel plate capacitor ?
- Netsurfer733
- · Replies 3 ·
What is the main cause of the Gyroscope Torque Confusion?
- DocZaius
- · Replies 2 ·
Why does resonance occur when inductor impedance equals resistance?
- balboa
- · Replies 1 ·
Magnetic Force Exerted on Particle
- moebiusatg
- · Replies 1 ·
Force Needed to pull apart hemispheres of an evacuated sphere
- horsecandy911
- · Replies 1 ·
Why is there no work done by centripetal force if velocity is perpendicular to it?
- Peter G.
- · Replies 7 ·
What Is the Natural Angular Frequency of a Cantilevered Body?
- zorro
- · Replies 3 ·
Calculate Torque: Solve the Equation!
- TBBTs
- · Replies 1 ·
Resultant Amplitude of 2 Waves
- jegues
- · Replies 1 ·
Angular Momentum Operator Eigenfunction
- InsertName
- · Replies 2 ·
Reaction force on a semi-cubical parabola
- zorro
- · Replies 4 ·
Car acceleration from displacements in 3rd and 5th seconds
- bingo92
- · Replies 5 ·
Electric field due to a finite line of charge
- gboff21
- · Replies 1 ·
How Does Angular Velocity Change as String Length Reduces in a Rotating System?
- Simfish
- · Replies 2 ·
Distance between falling object
- tpsstar
- · Replies 5 ·
Quantum Numbers for Hydrogen Atom Electron
- bon
- · Replies 3 ·
Dark fringe spacing in double-slit interference
- imatreyu
- · Replies 7 ·
Potential difference between two points problem
- wheybags
- · Replies 8 ·
Fire engine Doppler effect: distance between wavefronts or wavelength?
- Luke1121
- · Replies 1 ·
Calculating Current in a Circuit with a 20 Ohm Resistor
- mopar969
- · Replies 24 ·
Stopping distance of 2 Vehicles
- PhysicsAdvice
- · Replies 3 ·
Equilibrium and Moment of Inertia Question
- TBBTs
- · Replies 6 ·
How often are mars and earth diametrically apart
- epicbattle
- · Replies 2 ·
Measuring the period of a pendulum or spring with a stopwatch
- pradeepk
- · Replies 1 ·
Using photogates to find acceleration
- pradeepk
- · Replies 4 ·
How to Calculate the Increase in KE in a Two-Cart System with Spring Release
- misyg
- · Replies 1 ·
Statics, moment of inertia simple square-shape (no calculus)
- Femme_physics
- · Replies 4 ·
Solving a Physics Work Problem: Calculating Work on a Moving Car
- misyg
- · Replies 4 ·
Two transfersal sinusoidal wave
- dado
- · Replies 3 ·
Strength and direction of an electric field at a particular point problem
- Netsurfer733
- · Replies 2 ·
Find the taylor series of ln(1+x)
- vande060
- · Replies 5 ·
Finding normal force from kinetic and potential energies
- lsu777
- · Replies 5 ·
Time for particle to move from x=4cm to x=-3cm in SHM
- zorro
- · Replies 15 ·
How Long to Charge a 470µF Capacitor to 330V with a 3V Battery?
- elips
- · Replies 7 ·
What work was done by the electric force?
- mvpshaq32
- · Replies 10 ·
Finding Angular speed and momentum
- artsim2011
- · Replies 2 ·
Pulley problem solving for mass
- caprice_87
- · Replies 1 ·
Bungee Jumper - Elastic Potential Energy
- aeromat
- · Replies 2 ·
Momentum conserved on inclined ramps?
- aeromat
- · Replies 3 ·
What is the minimum thickness for destructive interference in thin film?
- TwoEyedHuman
- · Replies 7 ·
Max Voltage for Series/Parallel Resistors of 5 Ohms/10 Watts
- mopar969
- · Replies 27 ·
Short Answer SHM of diatomic molecule
- hskrnt8590
- · Replies 2 ·
Polytropic Process: Finding Final Pressure and Volume
- Mohd17
- · Replies 5 ·
A skier starts from a hill 1000m high
- unholymist
- · Replies 1 ·
What Is the Frequency of the Voltage Source in an LRC Series AC Circuit?
- Fisicks
- · Replies 3 ·
Minimum time through a cyclotron
- kulgan
- · Replies 6 ·
How Does Tension Direction Affect Torque in a Pulley System?
- kari82
- · Replies 1 ·
A cylinder on an inclined plane with rope
- darxsys
- · Replies 6 ·
How much heat energy is produced when a steel ball falls into sand?
- biamin
- · Replies 4 ·
Units of measure for Electric and Magnetic Fields
- atomicpedals
- · Replies 2 ·
Electric potential of electric dipole at large distance
- blueyellow
- · Replies 2 ·
Friction and the Coefficents of Friction question
- emilypanthel
- · Replies 3 ·
Sphere Climb Incline: Friction, Acceleration, Energy
- TBBTs
- · Replies 1 ·
What does repetition rate do in a pulse generator?
- imagemania
- · Replies 6 ·
Why does total internal reflection only occur at angles greater than critical angle?
- jegues
- · Replies 2 ·
Which scattering angle corresponds to the largest Compton shift and why?
- SpY]
- · Replies 6 ·
Show that the total magnetic force on the loop is zero
- blueyellow
- · Replies 3 ·
Sphere rolling down an incline with friction
- TBBTs
- · Replies 1 ·
Projectile Strike Homework: Angular Momentum
- TBBTs
- · Replies 1 ·
What is the Relation Between Linear and Rotational Speed?
- TBBTs
- · Replies 1 ·
Solving a Wheel on Step Question - Torque Calculation and Solution Attempt
- TBBTs
- · Replies 1 ·
Flame brought near charged electroscope
- Pseudopro
- · Replies 9 ·
How does capacitance affect voltage in a capacitor?
- MitsuShai
- · Replies 4 ·
Voltage,ohms law, electrical energy dilemma
- noone123
- · Replies 1 ·
Doubling the frequency of a quantum harmonic oscillator
- Cadenzie
- · Replies 1 ·
Why does increasing dipper frequency make waves closer together?
- Kyoma
- · Replies 5 ·
Finding the displacement thru position vectors
- pratjoehahn
- · Replies 3 ·
Radio telescope height from destructive interference of galaxy waves
- bcca
- · Replies 6 ·
Kinematics: Balloon Speed from Dropped Coin in 4s
- shwvvn
- · Replies 1 ·
Magnetic Field from 2 cylinders
- bitty
- · Replies 8 ·
Applying Kirchoff's law to circuit which only has cells
- mahela007
- · Replies 6 ·
Inclined Plane phyiscs question
- soccer17
- · Replies 9 ·
Resultant Waves: Constructive interfence vs destructive
- joej24
- · Replies 1 ·
Calculating Forces and Acceleration in a Castle Bridge Mishap
- pegasus24
- · Replies 14 ·
When Does m1's Velocity Become Zero or Negative After an Elastic Collision?
- Encarta
- · Replies 2 ·
Electric Field Strenght on a point due to surface charge from an infinte sheet
- Failbot
- · Replies 1 ·
What is the Angular Momentum of a Bullet Before Hitting a Door?
- MacDougal87
- · Replies 5 ·
Pioneer 10 Spacecraft travelling in space
- aeromat
- · Replies 2 ·
Physics C mech 2004 FR (2) - Pulley and Rotational Inertia
- joej24
- · Replies 3 ·
How Do Wavelength and Frequency Relate in Different Mediums?
- Halimeek
- · Replies 1 ·
What is the flow rate in an open-ended pipe with increasing gauge pressure?
- agondouin
- · Replies 2 ·
Statics - It seems simple, but there must be a catch
- Femme_physics
- · Replies 4 ·
Statics - When 2 unknowns and 2 equations cancel each other out
- Femme_physics
- · Replies 10 ·
Gioncoli 4th ed chap4 q59, tension
- Idoubt
- · Replies 3 ·
Network with resistors problem
- mopar969
- · Replies 8 ·
Finding the RC time constant in a circuit
- mopar969
- · Replies 10 ·
Why is kinetic friction always lower than maximum static friction?
- Peter G.
- · Replies 3 ·
Is my Req correct? (very simple electronics question)
- Femme_physics
- · Replies 2 ·
What is the Correct Approach for Calculating Magnetic Field Strength?
- wheybags
- · Replies 10 ·
How Do You Model Stray Capacitance in JFET Amplifiers for Mid-Band Frequencies?
- student75
- · Replies 1 ·
Circular Motion and Linear Speed
- Peter G.
- · Replies 7 ·
Cancelling out units in an equation
- andrewvidler
- · Replies 4 ·
Potential barrier of Silicon Diode
- otomanb
- · Replies 2 ·
Solving Physics Problem: 2 Spheres, Gravitational Attraction
- megalloa
- · Replies 5 ·
Force and torque on a dipole from a point charge
- cardinal724
- · Replies 1 ·
How does eddy current circulation occur in a moving conductor?
- Delzac
- · Replies 7 ·