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 Solve Complex RC Circuit Problems?
- horsedeg
- · Replies 3 ·
Dispersion relation ~ modern phyics (solid state physics)
- adamaero
- · Replies 1 ·
Finding the drift speed of a conduction electrons
- Omar FTM
- · Replies 13 ·
Having trouble rearranging this RC circuit
- horsedeg
- · Replies 5 ·
Velocity of car after 180 degree turn
- ujellytek
- · Replies 13 ·
Bernoulli's law in a network of a tube and a reservoir
- Niles
- · Replies 2 ·
Finding current in an electric circuit
- ImpCat
- · Replies 5 ·
External Fluid Flow -- Immersed Body Friction Drag
- pistolpete
- · Replies 4 ·
RC Circuit with a voltage source
- RyanP
- · Replies 2 ·
How can Superman minimize the braking distance?
- TheChemist_
- · Replies 21 ·
Angular momentum: rotating ice skaters
- Cepterus
- · Replies 14 ·
Determining the capacitance of the two conductors
- franktherabbit
- · Replies 1 ·
Thermodynamics adding ice to water problem with latent heat
- MattNguyen
- · Replies 1 ·
How to make total resistance of 1 ohm?
- Abs321
- · Replies 7 ·
Archimedes Principle: Pure gold or not?
- Phuf
- · Replies 11 ·
Calculate the induced charge on a conducting surface
- doktorwho
- · Replies 9 ·
Solve Bernoulli's Equation for Water Height Rise
- huffy
- · Replies 14 ·
Expectation values of the quantum harmonic oscillator
- Dean Navels
- · Replies 8 ·
To help reduce the severity of accidents [Average net force]
- LionLieOn
- · Replies 7 ·
Equilavent Resistance of a Triangular Circuit
- Dilemma
- · Replies 10 ·
Archemides principle/ Center of buoyancy
- huffy
- · Replies 6 ·
Teardrop loop-de-loop radius function
- nagyn
- · Replies 1 ·
Polar Coordinates [Finding the velocity]
- MrMechanic
- · Replies 8 ·
Calculating the volume charge density
- doktorwho
- · Replies 22 ·
Calculating Pressure Increase in a Syringe | 43 N Force, 1.1 cm Radius Plunger
- Jrlinton
- · Replies 2 ·
Finding height dropped from Force vs. Time graph
- drierplease
- · Replies 4 ·
A 342-g mass is attach to a spring and undergoes SHM.
- utorontoconnor
- · Replies 15 ·
Archimedes's Principle Question
- Physics Dad
- · Replies 9 ·
Experiment: Measuring the focal length of a converging lens
- Taniaz
- · Replies 6 ·
Finding maximum height of a string before it goes slack
- green-beans
- · Replies 12 ·
Why must E and B have the same phase in an EM wave?
- erisedk
- · Replies 4 ·
Difficult Practice Questions for Gravitational and Electric Fields
- Alex_C
- · Replies 3 ·
Intensity of Diffraction Pattern
- Stendhal
- · Replies 4 ·
How Do You Calculate the Displacement in Thompson's Cathode Ray Tube Experiment?
- David112234
- · Replies 13 ·
Moment of Inertia: Non Uniform Rod
- Andrew VanFossen
- · Replies 1 ·
What is the Phase Angle of an LRC Circuit with Given Components and Frequency?
- ooohffff
- · Replies 18 ·
Calculating the potential of a charged ring
- doktorwho
- · Replies 2 ·
Finding velocity of a piece after explosion
- goatz4real
- · Replies 3 ·
Intensity of sound wave and energy
- Pambos
- · Replies 1 ·
Finding Orbital Period of Unknown Planet
- tristanslater
- · Replies 5 ·
A problem about fluid mechanics
- harini07
- · Replies 21 ·
At what distance is the gravitational pull balanced
- a97e
- · Replies 8 ·
How Do You Calculate Electric Energy Density Near a Copper Wire?
- ooohffff
- · Replies 1 ·
A gyromagentic ratio for a cylinder
- TheSodesa
- · Replies 6 ·
When to use C(subv) and C(subp) for Q heat equation
- nso09
- · Replies 2 ·
Two lenses: find Di through second lens
- tensor0910
- · Replies 3 ·
Approaching capacitor circuit question
- RoboNerd
- · Replies 25 ·
Multi-stage Vs. single stage rockets
- Januz Johansen
- · Replies 15 ·
Thin film interference and external / internal reflection
- Cocoleia
- · Replies 1 ·
Units of the given potential box
- phenomenologic
- · Replies 3 ·
What Are the Formulas for Calculating Height in Synchronous Orbit?
- Shelilla
- · Replies 2 ·
Hard Kirchoff's Laws problem with batteries & resistors....
- Joe03
- · Replies 8 ·
Young's double slit experiment with the source being a slit
- Cocoleia
- · Replies 1 ·
Electromagnetic Induction (Long straight wire above circulua
- mikemartinlfs
- · Replies 1 ·
Calculating Velocity of a Sliding Box on an Inclined Ramp
- Cglez1280
- · Replies 3 ·
How do I calculate the Fermi Energy of a compound?
- member 422733
- · Replies 1 ·
What are some real-world applications of Gauss' Law?
- Clol
- · Replies 2 ·
Tension on a rope between two objects with different mass
- siumbaim
- · Replies 9 ·
Understanding Forces in Different Scenarios: Two Questions Analyzed
- Arquon
- · Replies 9 ·
Find the magnetic field at the origin
- gkamal
- · Replies 36 ·
Rail Gun Problem: Force & Friction Analysis
- David112234
- · Replies 2 ·
Help With a Difficult Lenses Question: Find the Answer!
- Rheegeaux22
- · Replies 3 ·
Calculating distance, acceleration and time
- agargento
- · Replies 6 ·
Rocket Efficiency: Why Use Multistage Rockets?
- Januz Johansen
- · Replies 6 ·
Pressure Drop in a vacuum cleaners
- Marylaax
- · Replies 3 ·
Finding acceleration given position and time
- agargento
- · Replies 2 ·
Finding the change in length of the rope
- Arquon
- · Replies 7 ·
E=1/2mv^2 Given E and change in velocity
- LoganNagol
- · Replies 2 ·
What Speed Is Needed for a Basketball to Reach the Hoop?
- agargento
- · Replies 2 ·
Find the temperature increase of a rotating disk
- Edward258
- · Replies 1 ·
Various forces on various objects
- Just_enough
- · Replies 33 ·
Work done by moving a point-charge
- AwesomeTrains
- · Replies 8 ·
Resultant equation of two identical out of phase waves
- Any Help
- · Replies 4 ·
Why are there two terms of both mutal and self inductance
- loesung
- · Replies 1 ·
How do I calculate the acceleration of a moving container on a specular surface?
- Facelam
- · Replies 10 ·
Kleppner - Example 1.18: Representation of Position Vector
- StudentOfScience
- · Replies 9 ·
When is the image produced by a thin lens sharp?
- JulienB
- · Replies 1 ·
Advantages of Multistage Rockets: Calculating the Benefits with an Example
- Januz Johansen
- · Replies 4 ·
What is the torque on the right side of the stick when the center is at 50cm?
- Just_enough
- · Replies 11 ·
Range Calculations: Mars vs Earth
- baba_944
- · Replies 14 ·
Trying to Calculate k, using Hooke's Law
- masterexploder
- · Replies 3 ·
How to solve using Bernoulli equation
- Zahid Iftikhar
- · Replies 8 ·
Calculating Reactions (Equations and Moments)
- JMxBelfast
- · Replies 2 ·
Work done by man pushing a crate up a ramp, includin done on
- SDTK
- · Replies 5 ·
How Do You Calculate Mutual Inductance in Toroidal Solenoids?
- HelpPlease27
- · Replies 17 ·
Quantum harmonic oscillator wave function
- Dean Navels
- · Replies 12 ·
Circular motion: Speed, velocity for car on a semi-circular path
- MPZ
- · Replies 6 ·
[Gravitational Potential Energy] In a movie stunt, a 65 kg skier...
- LionLieOn
- · Replies 10 ·
Releasing Electrons with a color filter
- wiegetz
- · Replies 2 ·
Car stopping time and distance when speed is doubled
- Just_enough
- · Replies 18 ·
Minimal altitude to start a “Suicide Burn” - variable thrust
- Daquicker
- · Replies 21 ·
Effect of Change of Potential difference applied to an X-Ray tube
- Bloopy
- · Replies 4 ·
Solve Velocity 4-Vector Homework
- MikeLizzi
- · Replies 4 ·
Why is my momentum equation giving an incorrect force?
- k_squared
- · Replies 1 ·
Liquid in which vessel boils first?
- Vibhor
- · Replies 13 ·
Worker Sim Pulma Sheen: Solving a Pulley Problem
- Just_enough
- · Replies 6 ·
Electrical circuits with resistors and variable voltage sources
- Biker
- · Replies 17 ·
Intensity at a point on the screen
- HelpPlease27
- · Replies 8 ·
Finding the magnitude of force P
- Touran Khan
- · Replies 6 ·
What is the speed of a wave on the string?
- Efast
- · Replies 2 ·