Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
Threads
Finding the charge on each capacitor
- Femme_physics
- · Replies 3 ·
Spring Mass Damping System Question? Maximum acceleration?
- Someone121
- · Replies 3 ·
What is the Difference Between Escape Velocity and Orbit Velocity?
- Badger01
- · Replies 1 ·
Calculating the Input Energy for Leaf Battery Pack from a Power Plant
- catlady
- · Replies 1 ·
Should I Pursue a Double Slit Experiment for My Physics EEI?
- AXidenT
- · Replies 3 ·
How Can You Solve the Oscillating Wave Problem in Vibrating Systems?
- Fionn00
- · Replies 2 ·
Why might it be important to carry out stress transformations?
- buxZED
- · Replies 1 ·
Circuit problem with ammeter and unknown resistance
- Femme_physics
- · Replies 76 ·
How Do Protons Behave in a Particle Accelerator?
- Twoacross
- · Replies 6 ·
Finding x-value for vector in a plane defined by two non-parallel vectors
- teejmd
- · Replies 4 ·
Deriving an equation for the electric field at a point charge
- ashworcp
- · Replies 1 ·
Displacement in the 5th second.
- zorro
- · Replies 6 ·
Electric Potential expression at point P
- ashworcp
- · Replies 1 ·
Why is 220V circuits used in certain devices
- mbm
- · Replies 3 ·
Changing string length -> changing fundamental freq.
- Lavabug
- · Replies 1 ·
Young's Modulus of Pressure Sensor
- ptar
- · Replies 1 ·
Multiple electrons in an infinite square well
- ProPatto16
- · Replies 2 ·
Understanding Electric Fields: Measuring the Electric Field at a Point P
- shashankdubey
- · Replies 1 ·
Calculating Speed from Light Wavelengths
- burgerkin
- · Replies 12 ·
Rotational Motion, Rolling Motion
- mateomy
- · Replies 1 ·
What Is the Maximum Transverse Velocity at x=0 for a Moving Wave Pulse?
- Lavabug
- · Replies 1 ·
What Does a Non-Uniformly Accelerated Motion Graph Look Like?
- Saitama
- · Replies 8 ·
How to Calculate Outlet Pressure and Temperature in a Pipe?
- kadiravann
- · Replies 1 ·
Frequency of oscillation (spring)
- Gold3nlily
- · Replies 5 ·
Finding equilibrium position for particle D in 2D gravitation problem
- Gold3nlily
- · Replies 5 ·
How Does Kinetic Energy Calculation Relate to a Nissan Leaf's Performance?
- toha24690
- · Replies 1 ·
When does a child walking on a plank cause it to tip?
- mogley76
- · Replies 1 ·
Deriving electric field from potential derivatives
- ashworcp
- · Replies 9 ·
Miniature Black Holes: Calculating Distance from Person
- Gold3nlily
- · Replies 4 ·
Why does tripling force reduce stopping time to one-third?
- Exquisite_
- · Replies 2 ·
Finding Bragg-Plane Spacing for a Crystal in Diffract-Meter
- burgerkin
- · Replies 8 ·
Calculating tension of objects with a pulley on an incline
- yummallory
- · Replies 1 ·
What is the velocity of electrons when released from 1 nm apart?
- accidentprone
- · Replies 2 ·
How to find natural frequency of a damped oscillator
- buxZED
- · Replies 2 ·
Projectile Motion and Air resistance
- usahockey7
- · Replies 15 ·
How Is the Orbital Period of a Satellite Determined?
- mogley76
- · Replies 3 ·
Is My Formula Rearrangement for Vertical Circle Travel Correct?
- RichMortimer
- · Replies 8 ·
Desperate Deriving Ideal Gas Formula
- ProPM
- · Replies 8 ·
Calculating Forces on a Charge from Multiple Charges
- stobbz
- · Replies 9 ·
What is the Distance Between Two Points with a Phase Difference of 45 Degrees?
- Lavabug
- · Replies 9 ·
Induced EMF and angular velocity
- bon
- · Replies 6 ·
Relationship between light wavelength, intensity and photons energy
- techguy
- · Replies 3 ·
Relationship Between Resistivity and Conductor Dimensions
- calculator20
- · Replies 1 ·
Basketball Physics Question (kinematics, really )
- Femme_physics
- · Replies 2 ·
Magnetic field within cylinder using Ampere's Law
- Silversonic
- · Replies 5 ·
Entropy for irreversible process
- CartoonKid
- · Replies 12 ·
How Does Adding Ice Affect the Final Temperature of Hot Coffee?
- salooom599
- · Replies 3 ·
Electric potential of a conducting sphere
- elyons
- · Replies 1 ·
Torque about different points gives different answers
- zorro
- · Replies 12 ·
Op-Amp Output Voltage Calculation with Two Input Voltages
- mad_monkey_j
- · Replies 6 ·
2 masses around a pulley w/ friction
- joe_coolish
- · Replies 1 ·
How Can a Capacitor be Charged to the Voltage of the Battery in an RC Circuit?
- kfreshn
- · Replies 5 ·
Moment of inertia of wheel and frictional torque.
- DragonZero
- · Replies 10 ·
Angular momentum equations for angular velocity and point mass
- mogley76
- · Replies 1 ·
Difference Between Interference and Diffraction
- molly16
- · Replies 1 ·
Measuring the size of a molecule
- ecy5maa
- · Replies 1 ·
Calculating Poisson ratio is a way to measure a material's response to stress.
- buxZED
- · Replies 6 ·
What angle between force and displacement gives 12500 J of work?
- x3lifelove
- · Replies 5 ·
Determining the force that is required
- x3lifelove
- · Replies 4 ·
Effect of parachute on free fall?
- pihotar
- · Replies 3 ·
Newton's Second Law Incline (constant accel)
- Dakren12
- · Replies 8 ·
How Do You Transform f(t) = cos(t) for t>=2 Using Step Functions?
- theextractor
- · Replies 1 ·
Work and Ideal Gases: Calculate Initial Volume
- Jake4
- · Replies 4 ·
Air bags, braking force, circuit breakers and lamp resistance
- reree17
- · Replies 15 ·
How Do Braking Force, Circuit Components, and Safety Devices Work in Physics?
- reree17
- · Replies 6 ·
Weather balloon radius at different pressure and temperature
- Jake4
- · Replies 3 ·
Optical Instruments: Solving Homework Problems
- songoku
- · Replies 7 ·
Fluid/Stream Que work shown need guidance
- jen333
- · Replies 3 ·
Net work on blocks of different mass pushed by same force
- MRGE
- · Replies 2 ·
Find out How Long 9.5 W Battery Can Run Camera
- Travian
- · Replies 19 ·
Lowest Possible Frequencies of a Sound
- nautikal
- · Replies 3 ·
Collision of Car & Truck: Calculating Velocity & Direction
- BilloRani2012
- · Replies 17 ·
Physical meaning of ohm as reciprocal velocity
- SaraF
- · Replies 1 ·
Power Required to Move Elevator Cab in NY Marriott Marquis
- goluigi2196
- · Replies 2 ·
Kinetic energy - this girl is getting frustrated
- physicsgirl8
- · Replies 15 ·
How to find work done in exact values?
- haiku11
- · Replies 1 ·
How to Measure the Output of an Op Amp Circuit?
- slain4ever
- · Replies 12 ·
Why Did My Calculation of the Heat Transfer Rate in Thermal Physics Go Wrong?
- Peter G.
- · Replies 3 ·
How long will a ball of paper take to fall from a height of 45 meters?
- Aureus
- · Replies 6 ·
Why Must Electron and Positron Have Equal Angles in Annihilation?
- amy andrews
- · Replies 1 ·
I need a topic about light, waves or color
- warfreak131
- · Replies 1 ·
Nonconservative/work theorem problem.
- neoncrazy101
- · Replies 1 ·
Questions about RLC circuits and OP amps
- slain4ever
- · Replies 5 ·
Balsa wood tower design with Euler's buckling theorem
- allison23
- · Replies 4 ·
Why does diagram C best represent ideal gas behavior?
- b_andries
- · Replies 7 ·
Solving for Charge Q at Corner C in Electric Field Problem
- Unkownentity
- · Replies 2 ·
Van de Graaff generator with PVC pipe instead of glass tube won't work
- demhaha
- · Replies 1 ·
Angular Velocity, Momentum, and Kinetic Energy
- xobeckynoel
- · Replies 1 ·
How to find out radius by velocity and an angle
- EggEgg
- · Replies 4 ·
Disk and cylindrical shell collision using angular momentum conservation
- Jim011991
- · Replies 1 ·
Calculating Speed of Bowling Ball Down Incline
- physicsgurl12
- · Replies 1 ·
Angular velocity and rotational equilibrium
- mollybethe
- · Replies 5 ·
Calculating Forces on a Window Washer's Scaffold
- physicsgurl12
- · Replies 1 ·
Angular velocity of cylinder when 10kg mass unwinds 25m of rope
- mollybethe
- · Replies 10 ·
Determining concentration by measuring pressure change
- Boltzano
- · Replies 1 ·
Charging capacitor through two bulbs vs discharging through one bulb
- sonetard
- · Replies 1 ·
How Do You Calculate Forces on a Plank with Unevenly Placed Weights?
- psychicgerm
- · Replies 1 ·
Determine angular velocity - Dynamics
- dvep
- · Replies 18 ·