Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
Threads
Solving Billy and Speakers: 16m, 0.8m, 3000 Hz
- axgalloway
- · Replies 1 ·
What Is the Focal Length of Veronique's Glasses for Clear Vision?
- phy112
- · Replies 1 ·
What is her speed relative to the ice surface?
- Ry122
- · Replies 3 ·
Question about normal friction and acceleration
- Lee Colombo
- · Replies 3 ·
When and where do two thrown coconuts collide?
- 5.98e24
- · Replies 2 ·
Rotational Inertia of a Rigid Body with Joined Rods
- Shatzkinator
- · Replies 2 ·
Distance a spring has been compressed
- Joe_I_Am
- · Replies 1 ·
Solving Two Bugs on a Fan Homework Problem
- srjs8812
- · Replies 1 ·
Protons in a particle accelerator
- AliAliAli
- · Replies 1 ·
Thermal Properties: Pressure, Volume, Temp question
- wcbryant87
- · Replies 7 ·
What Is the Speed and Average Acceleration of the Minute Hand on a Clock?
- StupidGenius
- · Replies 5 ·
Calculating the Average Force of a Weather Balloon on an Airplane
- maylilla
- · Replies 2 ·
Solving Rotational Speed Homework with Radius of 40cm
- zombie4000
- · Replies 4 ·
Finding the charge on a capacitator
- Dell
- · Replies 4 ·
Change in potential and kinetic energy
- science_rules
- · Replies 2 ·
Energy dissipated by a resistor in an RC circuit
- ehilge
- · Replies 2 ·
Calculate Momentum & Force with Zero Gravity & Mass: 80 kg
- XodoX
- · Replies 5 ·
Vacuum Chamber Suction Pressure: -100 Kpa or 0 Kpa?
- nastaynas
- · Replies 2 ·
Acceleration produced from dragging a box up a hill?
- FREEDOGGY
- · Replies 2 ·
Physics Inelastic Collision: Initial Velocities & Kinetic Energy
- onecoolcat
- · Replies 1 ·
Projectile motion in a spring loaded gun
- Darknes51986
- · Replies 3 ·
Calculating Coefficient of Friction for a Skier on an Inclined Slope
- Alexi
- · Replies 10 ·
Dipole in an Uniform Electric Field concept?
- fallen186
- · Replies 3 ·
How Can We Calculate the Pressure Inside a Sphere With Varying Density Gas?
- 78141471
- · Replies 1 ·
Superposition of 3 forces on a point charge
- jenzao
- · Replies 2 ·
Empty a gel from one tank to another tank (closed system)
- katchum
- · Replies 1 ·
Spring Passing Equilibrium Position
- TwinGemini14
- · Replies 5 ·
Question:Parallel capacitors and electric beams
- Joop!!
- · Replies 3 ·
Inclined accelerating pendulum question
- cloughenough
- · Replies 1 ·
How Much Ice Is Needed to Cool Water from 25°C to 10°C?
- Finland
- · Replies 3 ·
How Does m=2 Affect the Path Difference in Double-Slit Interference?
- lha08
- · Replies 1 ·
Period of Oscillation for a Standing Transverse Wave on a Flexible String
- collegegirl13
- · Replies 3 ·
Calculate the Effective Spring Constant using Coulomb's Law
- jamba88
- · Replies 1 ·
Why Do Incandescent Bulb Light Patterns Differ with Slit Experiments?
- Funktimus
- · Replies 5 ·
Calculating Post-Impact Velocity in a Golf Club-Ball Collision
- Ry122
- · Replies 5 ·
Isothermal Expansion: Work and Heat
- minidee
- · Replies 4 ·
Entropy of Macroscopic Collision
- begbeg42
- · Replies 6 ·
Convex Mirror Image Calculation
- roxxyroxx
- · Replies 2 ·
Parallel Lightbulbs- resistance total
- GDGirl
- · Replies 4 ·
Calculating Coefficient of Kinetic Friction from Given Forces
- Ry122
- · Replies 3 ·
Work and electric potential in a field
- rrr3221
- · Replies 1 ·
What is the PHYSICS metric unit for the measurement of:?
- amandamolegir
- · Replies 2 ·
Determine the normal force on the track
- Ry122
- · Replies 5 ·
Second Law of Thermodynamics - heat pumps and air conditioners
- elcaptain
- · Replies 1 ·
Light & Optics Physics Contest: 2 Questions Need Help
- ballaholic8
- · Replies 1 ·
Potential difference to find the magnitude of the electric field strength
- dpogre
- · Replies 2 ·
How Does Compressibility Chart Predict Final Pressure in a Heated Rigid Vessel?
- MEAHH
- · Replies 1 ·
How Do Bats Hear High Frequencies?
- m.l.
- · Replies 1 ·
Inelastic collision, kinetic energy
- lemonpie
- · Replies 3 ·
Energy added to Ice- determine final temperature
- markdflip
- · Replies 4 ·
Motion in the field (electric, magnetic) questions
- 385sk117
- · Replies 7 ·
Solving Spring Homework: Angular Frequency & Amplitude
- XJellieBX
- · Replies 2 ·
Image Distance of a concave mirror ( with algebra)
- Cheezay
- · Replies 6 ·
Spring Compression from 8.0kg Mass Sliding 7.00m Down 51deg Incline
- Ry122
- · Replies 1 ·
How Is the Net Electric Field Calculated Between Two Negatively Charged Disks?
- StephenDoty
- · Replies 14 ·
How much work done by friction? (coefficient given)
- Lothar
- · Replies 4 ·
Conservation of Energy & circular motion
- nrahim
- · Replies 2 ·
Ratio kinetic energy of alpha particle / kinetic energy of proton
- 385sk117
- · Replies 2 ·
Batter hits a ball momentum problem
- mandy34874
- · Replies 4 ·
Mass equivalent to one hydrogen atom?
- littlkj5
- · Replies 6 ·
How Do You Calculate the Period of a Spacecraft's Elliptical Orbit?
- KayleighK
- · Replies 1 ·
Nuclear Physics, photons, electrons and positrons
- aimslin22
- · Replies 2 ·
Nuclear Physics, portons and neutrons
- aimslin22
- · Replies 2 ·
Period of Mass on Spring: Amplitude & Period
- okgo
- · Replies 1 ·
Calculating Sound Intensity and Level of a Whisper
- xgoddess210
- · Replies 4 ·
What is the ball's maximum acceleration?
- lijoeman
- · Replies 2 ·
How to Calculate Orbital Period, Speed, and Minimum Energy for a Satellite?
- wowdusk
- · Replies 9 ·
Probability Density for Interferometer
- Einstein2nd
- · Replies 1 ·
What is the vertical force exerted by pier P on the left end of the bridge?
- vorcil
- · Replies 5 ·
Can someone explain the inclined plane picture to me?
- Lothar
- · Replies 19 ·
Need help showing work for these problems
- kiarrahannice
- · Replies 8 ·
Solve Gravitation Problem: Find Planet Radius from 11 kg Satellite Orbit
- ChazyChazLive
- · Replies 3 ·
What is the oscillation frequency?
- lijoeman
- · Replies 1 ·
Lagranguan / Coupled Oscillator
- Trenthan
- · Replies 1 ·
Inclined plane (ranking normal force)
- jtulloss
- · Replies 1 ·
Need help with a question about momentum
- stayfocused
- · Replies 3 ·
How to draw a freebody diagram of a non ideal pulley
- Gorz
- · Replies 1 ·
De Broglie and other Quantum Questions
- DizzyDoo
- · Replies 1 ·
Complete Inelastic collision & Force
- begbeg42
- · Replies 3 ·
Coursework - Determining Resistivity
- coolnufc
- · Replies 3 ·
Mechanics by Landau: Solving a Lagrangian Problem
- Advent
- · Replies 5 ·
Cylinder gas, pressure question
- yopy
- · Replies 14 ·
Various problems & questions - help,suggestion?
- R A V E N
- · Replies 5 ·
Mass/charge balance of Beta decay/nuclear reactions
- cashmoney805
- · Replies 1 ·
What Are the Energy Transitions in a Hypothetical Atom When Exposed to Light?
- m_physics
- · Replies 5 ·
Bright Fringes (Intro to Quantum Physics Qestion?)
- megaoka
- · Replies 2 ·
Maximizing Energy Levels: Calculating Electron Transitions and Photon Momentum
- beibixx
- · Replies 7 ·
The Energy Levels and Frequency of a Particle: Calculating E, p, and KEmax
- beibixx
- · Replies 4 ·
System of particles, linear momentum (easy problem)
- lemonpie
- · Replies 5 ·
Unpolrized light passes through 2 polarizers
- Cheezay
- · Replies 4 ·
How to Calculate Satellite Launch Speed for an Elliptical Orbit?
- clarabelle
- · Replies 4 ·
Why Is My Calculation of Angular Momentum Incorrect?
- vorcil
- · Replies 2 ·
Elevator problem: energy, power, intensity,
- Jack Brodie
- · Replies 2 ·
How Does Destructive Interference Occur With Different Sound Wavelengths?
- keemosabi
- · Replies 1 ·
How Does Angular Acceleration Affect Angular Velocity?
- ymehuuh
- · Replies 1 ·
Center Gravity and Moment of Inertia
- ymehuuh
- · Replies 4 ·
Potential Difference Across Resistors in Circuit
- jensenns
- · Replies 2 ·
Impulse-Momentum Theorem and acceleration
- 92_stealth
- · Replies 1 ·
What is the Frequency of the Lower Pitch Tuning Fork?
- whitehorsey
- · Replies 2 ·