Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
Threads
What Are Examples of Different Forces Systems in Daily Life?
- A|bert
- · Replies 2 ·
Understanding Capacitors and Reactance in AC Circuits
- jeff1evesque
- · Replies 3 ·
Locate the position of the image.
- mba444
- · Replies 4 ·
AC Circuits II: AC Power Generator
- OsDaJu
- · Replies 2 ·
Power of a car, time distance speed mass
- abruski
- · Replies 7 ·
Confusing Elastic and Inelastic Collisions :S
- rice1am
- · Replies 8 ·
Finding Vrms given pressure, density and Temperature
- sckeen1988
- · Replies 5 ·
What is the Angular Frequency of a Bent Wire Over a Pivot?
- vladimir69
- · Replies 4 ·
Speed of Sound in Air: Examining True Statements
- leena19
- · Replies 2 ·
Calculating Charge Magnitude for Nickel Coin Using Coulomb's Law
- tchounkovskii
- · Replies 8 ·
Another energy question, sorry.
- Matt1234
- · Replies 6 ·
What is the Impedance and Power Dissipation in an AC Circuit with a Generator?
- OsDaJu
- · Replies 5 ·
What is the speed of sound and tension in a vibrating harpsichord string?
- tag16
- · Replies 2 ·
Making Connections-I clearly do not know how
- IAmLost
- · Replies 6 ·
What is the magnetic flux through the loop
- jlmessick88
- · Replies 7 ·
How long will it take until gravity causes the rocket to stop?
- Max CR
- · Replies 4 ·
How to solve vector addition problems for physics?
- desi_chick
- · Replies 3 ·
Electric field at a point (charged ring)
- grantrudd
- · Replies 4 ·
How Do You Calculate Friction and Motion for a Grocery Cart on Asphalt?
- Dyna
- · Replies 8 ·
Use ray tracing to determine the location of the image
- jlmessick88
- · Replies 7 ·
Power and Energy - energy in a tidal power plant
- shaools
- · Replies 9 ·
How Does a Change in the Power of Accommodation Indicate Vision Defects?
- prat
- · Replies 1 ·
Forces on a Positively Charged Particle in an Electric & Magnetic Field
- jlmessick88
- · Replies 6 ·
Conservation angular momentum, difficult problem
- Puchinita5
- · Replies 12 ·
Energy Conservation in a Vertical Spring System
- Matt1234
- · Replies 7 ·
How does gravity affect upwards motion?
- Stripe
- · Replies 13 ·
Unit Conversion: 5m/s^2 to Km/hr^2 & ft/hr^2
- BlueOwl
- · Replies 1 ·
How Long Can You Pull a Tablecloth Before a Glass Falls Off?
- physicsnoob93
- · Replies 1 ·
Find Min Force for Window Washer: Ma = F + 2T_1 - Mg
- clarineterr
- · Replies 1 ·
Pulley Systems: Tension in Strings Holding m1 and m2
- physicsnoob93
- · Replies 1 ·
Inertia/angular momentum, not sure why this is wrong
- Puchinita5
- · Replies 2 ·
Electric field over finite length rod
- exitwound
- · Replies 12 ·
Using Trigonometry to Solve for T₁ in a System of Equations
- flyingpig
- · Replies 9 ·
Maximum Compression of a Spring in a Collision?
- planck42
- · Replies 3 ·
Interference in 2D (wavefronts)
- ~ak~
- · Replies 3 ·
Calculating Y-Component of Acceleration for a Thrown Ball
- clarineterr
- · Replies 2 ·
Finding Time, Distance, and Velocity
- Heat
- · Replies 27 ·
Measuring average power during a jump
- RoyalCat
- · Replies 30 ·
What is the total translational kinetic energy of the gas molecules
- tag16
- · Replies 1 ·
Calculating Pressure of an Ideal Gas Using the PV=nRT Equation
- tag16
- · Replies 8 ·
Analyzing the Truth of Statements about Kinetic Energy and Momentum
- leena19
- · Replies 10 ·
Kinematics(displacement and Velocity)
- BlueOwl
- · Replies 1 ·
Relative Humidity: Ice Block's Effects on Room Air | Homework Questions
- leena19
- · Replies 3 ·
Calculate Power Consumption of 60 W Lightbulb | Resistance and Voltage Equations
- NikkiNik
- · Replies 7 ·
What is the unit normal for a cylinder?
- jeff1evesque
- · Replies 11 ·
2 Unknown Currents, 1 Unknown emf, and a little confusion to boot
- nonnynonny
- · Replies 1 ·
Projectile Motion: Finding Maximum Range and Angle | Homework Problem
- lauren333
- · Replies 6 ·
Rod on frictionless surface with off-center impulse
- eprparadox
- · Replies 1 ·
How Does a Ferris Wheel Ride Reveal Physics Principles?
- clarineterr
- · Replies 1 ·
What instant the force in the dipstick iz zero
- orlan2r
- · Replies 10 ·
Charge Flown Through Battery In Charging Capacitor
- ritwik06
- · Replies 20 ·
Calculating Torque on a Circular Coil in a Magnetic Field
- Maxwellkid
- · Replies 21 ·
Relative Velocity along a Straight Line problem
- lauren333
- · Replies 6 ·
Which Solution for Kaon Production in Proton-Proton Collisions Is Correct?
- m.medhat
- · Replies 10 ·
How many alpha particles strike a plane target in 8 seconds?
- typeinnocent
- · Replies 6 ·
Electric potential for a sphere of charge
- peaceandlove
- · Replies 3 ·
Electrically Neutral Object: Does Adding Positive Charge Affect Mass?
- unseenoi
- · Replies 4 ·
Not Exactly Newton's Bucket U & K questions
- sponsoredwalk
- · Replies 10 ·
Find peak voltage across capacitor
- randomdude20
- · Replies 1 ·
Why is the exponent on the Stefan-Boltzmann law 2.78 in my experiment?
- ideasrule
- · Replies 1 ·
Diagram pressure forces over a body resting on an inclined surface
- orlan2r
- · Replies 4 ·
Struggling with Homework? Get Help with These 4 Problems
- Nguyenfa.t
- · Replies 2 ·
How Do You Calculate the Number of Laser Pulses in a Run?
- artwork
- · Replies 4 ·
Resultant Force on a Conical Flask Filled with Liquid
- leena19
- · Replies 18 ·
What Is the Mass of the Late Arrival in the Hot-Air Balloon?
- pttest
- · Replies 4 ·
Conservation of Momentum difficulty
- dontcare
- · Replies 7 ·
Quick question about Simple Harmonic Motion
- Dr. Mirrage
- · Replies 1 ·
SI units for Heat transfer equation
- jeff1evesque
- · Replies 5 ·
Air Pressure Problems: Calculating Volume & Mass
- Robert Alan
- · Replies 9 ·
Free body diagram for a block on an inclined plane
- Nguyenfa.t
- · Replies 10 ·
Electromagnetic Waves and Induction
- jlmessick88
- · Replies 11 ·
What current is needed in the solenoid’s wires?
- jlmessick88
- · Replies 4 ·
Dynamics question, test tommorrow
- Matt1234
- · Replies 1 ·
How far from the entrance will the beams of the different isotope ions end up?
- jlmessick88
- · Replies 1 ·
Angular Magnification for mirrors and lens
- jix
- · Replies 3 ·
Equilibrium of Three Positively Charged Beads
- define_normal
- · Replies 3 ·
Unit Consistency: Exam Prep in 8 Hours
- jaimieee
- · Replies 10 ·
Maximal theta given the coefficient of kinetic friction
- tkahn6
- · Replies 12 ·
Find the value of L. Answer in units of
- mba444
- · Replies 1 ·
What Is the Effective Current in an RLC Circuit with Given Parameters?
- mba444
- · Replies 2 ·
How Is the Magnetic Field Calculated Near a Current-Carrying Wire?
- SimonZ
- · Replies 2 ·
Position & Force of Q2 & Q3 Charges
- superjen
- · Replies 9 ·
Definition of Curl - Explaining Nabla x V = -k Partial Phi/Partial t a_n
- jeff1evesque
- · Replies 9 ·
Calculating Force Magnitude on a Charge in a Multi-Charge System
- talaroue
- · Replies 4 ·
Is Velocity Conserved in a Falling Balls Collision Experiment?
- rahmatkat
- · Replies 2 ·
How Deep Is the Cavern if a Pebble Takes 1.8 Seconds to Hit the Water?
- domdom
- · Replies 1 ·
Newton's Law Problem: Calculating Acceleration on an Inclined Plane
- Smile101
- · Replies 5 ·
Equivalent Capacitance (Not in series or parallel)
- denniegst
- · Replies 16 ·
Physics homework question (Dynamics)
- Matt1234
- · Replies 5 ·
Finding the Force Vector from Kinetic Energy: A Vector Analysis Approach
- RaStevey
- · Replies 13 ·
What Forces Act on a Charge at the Corner of a Rectangle?
- october2118
- · Replies 1 ·
Change in temperature and length problem help
- jmb07
- · Replies 3 ·
What is the Mass Density of Air at 1 atm and -50°C?
- jmb07
- · Replies 3 ·
Need help with a Statically Indeterminate System
- TA1068
- · Replies 2 ·
You slowly back away from a plane mirror at a speed of 0.10 m/s
- jlmessick88
- · Replies 2 ·
Why Electric Fields are perpendicular
- KatieD
- · Replies 6 ·
Find position vector from given velocity
- Skuzzy
- · Replies 5 ·
Conceptual Standing Wave Question
- MyNewPony
- · Replies 1 ·
Finding Lambda 4 for mechanical harmonics
- Iwanttolearn7
- · Replies 1 ·
How Long Can a Leaking Boat Loaded with 1200kg Float Before Sinking?
- leena19
- · Replies 3 ·