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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Calculating Charge Needed for Same Binding Energy in H2+
- ghallya
- · Replies 1 ·
Mixture Formula: Combining 2+ Fluids
- pavadrin
- · Replies 7 ·
Identifying an unknown equation from a game
- R G
- · Replies 5 ·
Potential energy and gravitation
- Amith2006
- · Replies 7 ·
Calculating Distance from Water Level to Stream Impact Point
- whereisccguys
- · Replies 1 ·
Ideal gas undergoing cycle change - find temperature
- Amith2006
- · Replies 1 ·
Center of mass, forces and momentum
- Pseudo Statistic
- · Replies 9 ·
What is their common angular velocity?
- Amith2006
- · Replies 6 ·
Power from climbing stairs converted to hourly wage
- atOnz
- · Replies 9 ·
Why do waves in ADSL, fiber optic and mobile signals not interfere with each other?
- pkc111
- · Replies 4 ·
Negative electrostatic potential energy
- endeavor
- · Replies 3 ·
Charge Placement where Force is Zero
- jg95ae
- · Replies 10 ·
Calculate Density of Standard Kilogram Cylinder: Quick Guide
- maej26
- · Replies 13 ·
Focal length and magnification using lensmaker's equation
- nophun6
- · Replies 3 ·
Linear Momentum Conservation and Work-Energy Theorem in a Block-Slab System
- Pseudo Statistic
- · Replies 8 ·
How High Will Mass #2 Rise in Different Collision Scenarios?
- Supernerd2004
- · Replies 7 ·
Figuring out relationships with graphs
- oooo
- · Replies 15 ·
How do I use cross and dot products to solve physics problems?
- willydavidjr
- · Replies 4 ·
Understanding Internal Energy: Path Dependence and Point Functions
- Amith2006
- · Replies 2 ·
Can a Large Matrix Allocation Cause a Windows Error in Circuit Simulation?
- Phymath
- · Replies 2 ·
Light from a bulb reflecting off a mirror to create a bright streak
- nophun6
- · Replies 1 ·
Kilogram Newtons (Extremely Easy Question)
- kape
- · Replies 3 ·
Helium nucleus vs proton in magnetic field radius
- Delzac
- · Replies 23 ·
Solving Coulomb Triangle: Find Unknown Charge q
- jg95ae
- · Replies 5 ·
Work done by man jumping off boat: is it just 1/2(M+m)v²?
- Delzac
- · Replies 2 ·
Does an Air Bubble Impact the Accuracy of a Water Leveling Tool?
- recon
- · Replies 10 ·
Energy of fields caused by RLC circuits
- pasvvord
- · Replies 1 ·
How Long Does It Take to Change Air in a Box Using a 700 mbar Vacuum Pump?
- hick
- · Replies 4 ·
Induced current in a 5 cm loop as magnetic field increases from 0.5 T to 2.5 T
- SwMarc
- · Replies 9 ·
Find the distance this spot travels in one period.
- justneedhelp81
- · Replies 3 ·
Calculating Ocean Depth using Sonar Signals
- aerogurl2
- · Replies 4 ·
What is its period in the water?
- aerogurl2
- · Replies 5 ·
Minimun lens size (in meters) that will permit just resolving 2 stars
- cheez
- · Replies 4 ·
Temperature rise of river water from 980 MW power plant with Carnot turbine
- N_L_
- · Replies 2 ·
Units from Operations: 1-kg/s^2, 2-m^3/s, 3-m^2, 4-coul^2/s
- jaybreezy03
- · Replies 1 ·
Filling a volume (pool) at a given rate
- whoknows123
- · Replies 10 ·
Beat Frequency Chart: Solve Problems & Find Original Freq.
- Alain12345
- · Replies 8 ·
Intensity of sounds - Hearing Aid
- whoknows123
- · Replies 2 ·
Question to aid my science fair research
- oooo
- · Replies 4 ·
What would a PV curve for a Quasiturbine engine look like?
- taijin
- · Replies 3 ·
Rectilinear Motion: Definition and Examples
- acceler8
- · Replies 1 ·
Three problems: zero potential profile, sliding bar resistance, and mirror images
- ranger12
- · Replies 1 ·
Average kinetic energy of all gases are the same
- Amith2006
- · Replies 1 ·
Why do you heat a bottle of mayonaise when its difficult to open?
- kampai
- · Replies 3 ·
Time to React: Calculating the Pilot's Response
- Brett
- · Replies 1 ·
Where should I post medical imaging and radiological physics questions
- Imaging
- · Replies 2 ·
Determining the mass of a photon travelling at the speed of light
- Solidmozza
- · Replies 3 ·
How Does Adding Ice to Water Affect Final Temperature?
- aerogurl2
- · Replies 14 ·
Calculating Force of Friction for Constant Velocity - Jay Matheson
- atOnz
- · Replies 16 ·
How Does Moseley's Law Relate to Electron Screening and Atomic Charge?
- big man
- · Replies 7 ·
Sound waves problem help
- FlipStyle1308
- · Replies 15 ·
Resonance frequency in an LCR circuit
- Boxcutter
- · Replies 1 ·
Designing a Bouncing Egg-Drop Container with Springs
- hushnow
- · Replies 4 ·
Calculating Electron Velocity in a Magnetic Field
- ekinnike
- · Replies 3 ·
Finding original frequency of guitar string from beat frequency
- Alain12345
- · Replies 1 ·
Projectile motion differential equations with initial velocity
- cscott
- · Replies 5 ·
Gravity's Effect On A Bowling Ball In A Level Alley
- aerogurl2
- · Replies 3 ·
What Is the Difference Between Vibration and Oscillation?
- jrm2002
- · Replies 2 ·
Diffraction of light from a single slit and on a wire
- heelp
- · Replies 2 ·
What Does a 3-D Light Wave Look Like?
- BTruesdell07
- · Replies 3 ·
Fluid dynamics or evaporation rate for IB physics extended essay?
- Srinand
- · Replies 4 ·
Multiple optics questions on light behavior and lenses
- mmg0789
- · Replies 4 ·
Can someone explain work and force problems to me?
- emma123
- · Replies 4 ·
Average force on 850 kg dragster accelerating to 24.6 m/s
- aerogurl2
- · Replies 9 ·
What is the Direction of the Third Piece After the Bomb Explosion?
- MrRottenTreats
- · Replies 3 ·
Maxwell-Boltzmann speed distribution
- arnesmeets
- · Replies 2 ·
Understanding Electron Volts: The Main Unit of Energy in Physics
- eggman
- · Replies 4 ·
Finding acceleration of 30 kg object after collision with 10 kg object
- RachelR
- · Replies 1 ·
Why the magnetic truck oscillates?
- matthew77ask
- · Replies 1 ·
How Do Charge Locations Affect Electric Field Calculations?
- endeavor
- · Replies 2 ·
Finding the volume of gold in intergalactic space
- SnackMan78
- · Replies 2 ·
Water line difference between empty and loaded barge
- matthew77ask
- · Replies 9 ·
Question on what a Real and Virtual images are
- pavadrin
- · Replies 2 ·
Energy and Boltzmann's Constant
- prolong199
- · Replies 2 ·
Pressure in Garden Hose: Solving P + (1/2)pv^2 + pgh
- FlipStyle1308
- · Replies 2 ·
How to Calculate Electric Potential Energy in an Infinite Grid of Charges?
- Icheb
- · Replies 4 ·
Formula for electron accelerated across potential difference?
- juliab
- · Replies 3 ·
Acceleration, velocity, etc. on the Giant Drop
- oooo
- · Replies 5 ·
Finding an electric field from a radio station
- Noone1982
- · Replies 1 ·
How Do You Calculate Capacitance Between Two Spherical Conductors?
- Brewer
- · Replies 5 ·
Thermodynamics - efficiency question
- N_L_
- · Replies 3 ·
What's the Density of Mixed Liquids?
- O.J.
- · Replies 2 ·
What is the original frequency and how can it be calculated?
- Alain12345
- · Replies 3 ·
Will light rays bend toward or away from the normal?
- mmg0789
- · Replies 6 ·
When does a concave mirror form a real or virtual image?
- mmg0789
- · Replies 3 ·
Calculating Impact Energy for Non-90° Angles
- zbobet2012
- · Replies 8 ·
What is the threshold frequency for this material?
- mmg0789
- · Replies 3 ·
How Does Light Diffract Around a Tiny Spherical Bead?
- jimmy_neutron
- · Replies 2 ·
What Is the Energy Difference in the Stern-Gerlach Experiment with Silver Atoms?
- big man
- · Replies 2 ·
Calculating Charge, Current, and EMF in a Reversing Magnetic Field"
- Seiya
- · Replies 1 ·
Why Use 273.15 and 273.16 for the Triple Point of Water?
- al_201314
- · Replies 5 ·
Graph of V and I against time in AC
- al_201314
- · Replies 2 ·
Calculating Earth's Orbit Period using Kepler's Law of Periods
- orbity
- · Replies 3 ·
Doppler Effect Police Car Question
- FlipStyle1308
- · Replies 2 ·
What is the distance traveled by a blue spot on a transverse wave in one period?
- FlipStyle1308
- · Replies 15 ·
Inflating wading pool with garden hose
- FlipStyle1308
- · Replies 2 ·
Resisting Collapse: The Physics Behind a Star's Stability
- orbity
- · Replies 5 ·
Tricky Problem (at least for me)
- need help
- · Replies 1 ·
Understand Kirchhoff's Rules: Solving Circuit Confusion
- sap_54
- · Replies 2 ·
Why did Millikan use terminal velocity in his oil experiment?
- al_201314
- · Replies 2 ·