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 is the Angular Separation in a Diffraction Grating Calculated?
- WenyiJones
- · Replies 5 ·
Is My Planck's Constant Data Incorrect?
- Procrastinate
- · Replies 5 ·
How Far Can a Bird Watcher Hear a Song Bird's Sound?
- MarineBio
- · Replies 3 ·
Proton Motion in Electric Field
- XTEND
- · Replies 5 ·
How Do You Calculate Recoil Speed in Ballistics?
- Ki-nana18
- · Replies 1 ·
Calculating Final Velocity with Acceleration: Space Shuttle Example
- short_tarts
- · Replies 3 ·
Calculating Visible Light Photons Emitted Per Second & Distance
- EK86017
- · Replies 2 ·
Elastomer stretched in tension and elongation
- tone999
- · Replies 1 ·
Magnetic Field and Current Flow: Explained
- bodensee9
- · Replies 2 ·
Inclined Plane and Elevator with Acceleration
- harrinj4
- · Replies 7 ·
How Long Must Force F2 Act to Match the Impulse of Force F1?
- crono_
- · Replies 5 ·
Newton's Second Law: Acceleration & Mass Relationship
- Ki-nana18
- · Replies 8 ·
What is the force intercept on my graph and how can I find it?
- Machinehead73
- · Replies 5 ·
Distance from House for Soccer Ball Kick Homework
- liuquinlin
- · Replies 1 ·
Calculating Potential Difference in a Uniform Electric Field
- exitwound
- · Replies 5 ·
Absolute value of acceleration Help
- Machinehead73
- · Replies 1 ·
Net Force of a Model Rocket in Free Fall
- wicked_vixen
- · Replies 1 ·
A three step cycle problem check
- Dari
- · Replies 2 ·
How fast does the student need to drive to save the melting ice cream?
- aft_lizard01
- · Replies 3 ·
Designing experiment to detect pipe leakage using radiation.
- coolingwater
- · Replies 10 ·
Calculating Electrostatic Force with Coulomb's Law
- antiderivativ
- · Replies 3 ·
Is My Calculation of Applied Force in a Pulley System Accurate?
- kieran89
- · Replies 1 ·
Can Two Nuclei with Different Protons and Neutrons Share the Same Nuclear Radii?
- jdp523
- · Replies 4 ·
Vertical circular motion of a body
- leena19
- · Replies 8 ·
Determine magnetic flux and current
- mar7pau
- · Replies 1 ·
Electron Speed in a Voltage Gradient
- nweis
- · Replies 2 ·
How to Calculate Bullet Velocity in a Spring/Block System?
- antiderivativ
- · Replies 19 ·
Given Sound-Level B1 at A Distance D1, Find D2 at Sound Level B2
- antiderivativ
- · Replies 3 ·
Conservation of Energy involved with a spring and two blocks and a pulley.
- Elmnt
- · Replies 2 ·
Focal Length & Position of an object.
- frederickcan
- · Replies 1 ·
Help Me Calculate Wheel Angular Velocity For Simulating a Car
- soku11
- · Replies 15 ·
What is the Method for Finding Average Acceleration Using a Graph?
- razored
- · Replies 17 ·
How to Solve for Acceleration on Two Connected Incline Planes?
- Machinehead73
- · Replies 8 ·
Radioactivity of Thorium question
- bigkrezca32
- · Replies 4 ·
Neon Ions Acceleration in Tube w/20kN/C Field
- antiderivativ
- · Replies 2 ·
Basic Thermo Question (heating a room)
- astropi
- · Replies 3 ·
Calculating Force of Gravitational Attraction: Mass M, m, Distance
- dance_sg
- · Replies 4 ·
Determine currents in resistors help
- araujo3rd
- · Replies 7 ·
Stopping Distance + Reaction Time Problem -> Physics beginner
- MyFinalRegret
- · Replies 2 ·
Calculating Tensions in a Simple Tension Question | Physics Homework Help
- Beamy
- · Replies 4 ·
X - Solving for Load in Young's Modulus Problem
- greeto8
- · Replies 1 ·
A: Mouse and Ladder: Time for Return
- phykeep
- · Replies 20 ·
Pin Connection with one support reaction?
- RadiationX
- · Replies 11 ·
Find Acceleration for Pulley Homework
- shangri-la89
- · Replies 8 ·
Work Done on 12kg Mass: 52N - 15N over 24m
- dance_sg
- · Replies 4 ·
How Does Wavelength Affect Double-Slit Interference Patterns?
- mar7pau
- · Replies 1 ·
Calculating Acceleration with Friction and Applied Force
- dance_sg
- · Replies 2 ·
A basic question on quantum mechanics
- dragonlorder
- · Replies 5 ·
Consservation of energy problem
- Elmnt
- · Replies 2 ·
Efficiency of electrical power plant
- ariana0923
- · Replies 1 ·
Foca length of a concave mirror
- Steven7
- · Replies 5 ·
Direction of Angular Velocity (w)
- cosurfr
- · Replies 4 ·
What is the frequency of a sound wave traveling through air in a tube?
- Puchinita5
- · Replies 2 ·
Ideal Gas Law: Solving Air Bubble Volume at Different Depths
- Perrin
- · Replies 1 ·
Calculating Binding Energy of Neutron in 14N
- NikkiNik
- · Replies 1 ·
Do Modern Circuit Boards Use Full or Partial Shielding Techniques?
- jeff1evesque
- · Replies 7 ·
What is the Work Done on a Car by Gravity on an Inclined Plane?
- dance_sg
- · Replies 5 ·
How Do You Calculate Gravitational Potential Energy on an Inclined Plane?
- dance_sg
- · Replies 1 ·
Calculating Focal Length of a Converging Lens Using Incident and Refracted Rays
- NikkiNik
- · Replies 2 ·
Tension on the string is doing work
- BlueOwl
- · Replies 5 ·
Carbon sample of a saber tooth tiger decay
- graphicer89
- · Replies 7 ·
Electric Potential Energy of More Than Two Charges
- exitwound
- · Replies 8 ·
Projectile Motion: Solving for Overall Velocity with Hang Glider Example
- eddy10188
- · Replies 6 ·
Stopping distance inclined plane
- gracedescent
- · Replies 11 ·
Using Kepler's constant for Jupiter
- emadtheman
- · Replies 4 ·
Is My Calculation of Velocity at the Bottom of a Ramp Correct?
- aguycalledwil
- · Replies 4 ·
Finding the kinetic coefficient and acceleration
- gracedescent
- · Replies 14 ·
Finding h for a Cylinder on a Track
- clarineterr
- · Replies 3 ·
How Does Changing the Axis Affect Angular Acceleration of a Disc?
- Elmowgli
- · Replies 1 ·
How Does a Falling Metal Bar Generate Electricity in a Magnetic Field?
- Mightyducks85
- · Replies 1 ·
How Far Apart Are the Rays of Red and Violet Light When Exiting Flint Glass?
- doverdt75
- · Replies 9 ·
Work on a charged particle due to Ring
- dwstrait
- · Replies 7 ·
Relative Acceleration Across a Potential Difference
- Paulman35
- · Replies 4 ·
What is the magnitude of the net force acting on the ball?
- jandominic145
- · Replies 6 ·
Calculating Heat Transfer and Work in Cyclic Processes | Refrigerator Example
- ariana0923
- · Replies 2 ·
Calculating Surface Tension with a Suspended Glass Tube - What's the Equation?
- leena19
- · Replies 19 ·
How do you pronounce X and Z (reactance and impedance)?
- bobaustin
- · Replies 2 ·
Electric Field of an Infinite Line of Charge: Analyzing the Rod
- vorcil
- · Replies 17 ·
How Do Forces and Accelerations Work in a Frictionless Tug-of-War?
- anti_physical
- · Replies 9 ·
Net Force Worksheet: Solving Acceleration, Mass & Friction Problems
- vinboi
- · Replies 1 ·
Calculating Energy Impact: Weight Required for 9 Joules at 1 Meter Height
- iqbaldadarkar
- · Replies 1 ·
What Happens to Lung Volume When Ascending from a Submarine?
- ducksmad
- · Replies 1 ·
Atomic Energy Levels Homework: De Broglie Wavelength & Ionisation of Fe
- physicsNYC
- · Replies 2 ·
Calculating Friction Force: A Toy Train Example
- dance_sg
- · Replies 5 ·
Finding combined amplitude of out of phase waves
- novafx
- · Replies 5 ·
What Is the Linear Density of the String in a Standing Wave System?
- Puchinita5
- · Replies 3 ·
MY BIGGEST PROBLEM in capacitance
- meLzee
- · Replies 3 ·
Toaster Resistance: Calculate Power Rating & Heating Element Resistance
- Michael17
- · Replies 2 ·
Ideal gas question on glass bulbs
- fluppocinonys
- · Replies 8 ·
Van de Graaff generator? adding a electron?
- graphicer89
- · Replies 8 ·
Newton's Laws of Motion; tension
- wicked_vixen
- · Replies 2 ·
Charge distribution (Gauss law)
- jeff1evesque
- · Replies 13 ·
Period of oscillation of spring system
- SbCl3
- · Replies 5 ·
Coulomb's Law - Vector Analysis
- mrxtothaz
- · Replies 3 ·
Ideal Gas Question Homework: Mass of Air in House @ 20C & -10C
- tiffanysnow
- · Replies 1 ·
How Does Friction Affect the Speed and Position of a Box on a Spiral Slide?
- Dynamic24
- · Replies 4 ·
Simple Harmonic Motion (easy question)
- MarineBio
- · Replies 5 ·
How Many Revolutions Does a Proton Make in a Cyclotron?
- MyNewPony
- · Replies 1 ·
Simple lab calculation (Magneticfield vectors)
- Xeno24
- · Replies 2 ·
Question with large number?electron charge?
- graphicer89
- · Replies 10 ·