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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Electric field and force between charges at varying distances
- lineo
- · Replies 3 ·
Finding magnitude of current of 3 rods, so 1 can levitate.
- munkhuu94
- · Replies 1 ·
Thermal Properties of Solids and Gases Problem
- Silverbolt
- · Replies 6 ·
Analyzing the Circuit: Currents, Potential Differences, and Power Dissipation
- britt
- · Replies 15 ·
A closed organ pipe has a length of 2.40 m?
- TheCuriosity
- · Replies 5 ·
Falling Weight Attached to a Wheel and a Sphere
- Como Bluff
- · Replies 4 ·
Diffraction Patterns: Does Distance Affect Diffraction?
- haha1234
- · Replies 1 ·
Equations of movement of partical that slides inside a container
- alejandro7
- · Replies 6 ·
Reaction enthelpy at non-standard conditions
- giokara
- · Replies 2 ·
Motion in Two or Three Dimension : Projectile motion
- physicos
- · Replies 5 ·
Projectile Motion - Range of projectile
- coggo8
- · Replies 5 ·
Calculating Vertical Motion: Am I on the Right Track?
- anthonyk2013
- · Replies 5 ·
Hot air balloon - Archimedes Principle
- Attis
- · Replies 4 ·
Supposedly Simple Tension Problem
- coconut7
- · Replies 4 ·
Projectile Motion man tosses object
- Acnhduy
- · Replies 4 ·
What is the Correct Minimum Force to Move a Ladder Against a Wall?
- bnoone
- · Replies 13 ·
How Much of the Granite Rock Ball Must Be Submerged to Float?
- clobern
- · Replies 1 ·
Calculate the z position of the particle as a function of time.
- viniterranova
- · Replies 1 ·
Coulomb's Law (3 charges in equilateral triangle)
- BMcC
- · Replies 7 ·
Find the current in the 2Ω resistor marked A
- fishy
- · Replies 1 ·
Contribution to the magnetic field at the point by a thin wire
- theshonen8899
- · Replies 6 ·
Entropy of a system water-reservoir
- Dassinia
- · Replies 4 ·
Transistor/Amplifier pre-lab; Inverting vs Non-inverting
- oddjobmj
- · Replies 1 ·
How Does Throwing a Medicine Ball Affect Beam Displacement?
- tgitatif
- · Replies 4 ·
How Do You Calculate the Initial Velocity and Range of a Soccer Ball?
- edwinandrew
- · Replies 3 ·
Why is a resistor for convection not included in the thermal circuit solution?
- theBEAST
- · Replies 8 ·
How Long Does It Take for a Homopolar Generator Disc to Halve Its Speed?
- fayled
- · Replies 6 ·
Free-Body Diagram for a Brick and Pillow System: Mass and Forces
- alwaysconfused
- · Replies 2 ·
Wires with constant power and increasing voltage
- MathewsMD
- · Replies 4 ·
Why Is the 40 W Bulb Brighter When Connected in Series with a 60 W Bulb?
- Coop
- · Replies 4 ·
Potential of Concentric Spherical Insulator and Conductor
- ml8
- · Replies 1 ·
How Should a Quarterback Throw to Hit a Stationary Receiver?
- Natko
- · Replies 3 ·
Does the acceleration cancel out?
- Medgirl314
- · Replies 67 ·
What Happens When Force is Not Constant in W = f x D?
- thomero
- · Replies 3 ·
Does a flashlight battery have internal resistance?
- carnivalcougar
- · Replies 3 ·
Projectile Motion- What angle does range equal max height?
- Acnhduy
- · Replies 9 ·
Maxwell's theory of wave propagation
- Srv C
- · Replies 1 ·
Calculating Flux Through a Circular Ring
- Tanya Sharma
- · Replies 9 ·
Find total E of muon using time dilation
- oddjobmj
- · Replies 12 ·
Conservation of Energy through friction and cliffs
- mintsnapple
- · Replies 1 ·
Minimum speed of the bullet to penetrate a sphere
- Tanya Sharma
- · Replies 4 ·
Nuclear physics problem - energy of reaction
- Saitama
- · Replies 21 ·
How can I find work, horizontal force, and time contact?
- athena810
- · Replies 14 ·
Energy Collected in one pixel on a CCD.
- cgl3md
- · Replies 1 ·
1.5V/3W lightbulbs with a 9V battery. Will they burn out?
- carnivalcougar
- · Replies 3 ·
Terminal Voltages of a flashlight cell?
- carnivalcougar
- · Replies 4 ·
USAPhO 2014 F=ma exam #19, (tension, static equilibrium)
- Agrasin
- · Replies 12 ·
Eigenvalues and eigenkets of a two level system
- White_M
- · Replies 3 ·
Fermat's principle to derive lens formula
- Srv C
- · Replies 2 ·
Pipe Climbing Device: Calculating Force, Motor & Time Needed
- donenow
- · Replies 5 ·
Use Work (net) to find coefficient of static friction and speed
- tentoes
- · Replies 8 ·
A lamb grows with its mass proportional
- Nerdlight
- · Replies 7 ·
Three boxes on different inclines
- Packocrayons
- · Replies 1 ·
How Does a Star's Mass Affect its Properties and Position on the HR Diagram?
- MartenAndre
- · Replies 3 ·
How Do You Determine When a Chain of Charges Breaks?
- Saitama
- · Replies 39 ·
How Does Mass Redistribution Affect Angular Velocity?
- BrownBoi7
- · Replies 5 ·
Charge of three small spheres when connected to a big one
- Rugile
- · Replies 8 ·
Solving a Charge at the Center of a Sphere Problem
- BOAS
- · Replies 2 ·
Is Work Ever Negative? A Discussion on the Potential Negative Effects of Work
- thomero
- · Replies 2 ·
Physics question - Forces on a mass on horizontal surface
- suzy123
- · Replies 8 ·
Electric Field Strength Between Two Parallel Plates Problem
- liamporter1702
- · Replies 4 ·
Finding the Moment of Point B: Is it Largest?
- freshbox
- · Replies 28 ·
Solving Battery Problem: Transport 2.6 kg Chocolate up 1000m
- Physicsrapper
- · Replies 2 ·
How to Calculate the Brackett Series in Excel?
- ZedCar
- · Replies 3 ·
Circuits - Calculating Effectice Resistance
- FaraDazed
- · Replies 7 ·
Right hand rule - Magnetic field
- Lee33
- · Replies 1 ·
Potential for a system of a solid sphere and spherical shell
- cwbullivant
- · Replies 12 ·
Thermodynamics - Hot-air balloon
- Feodalherren
- · Replies 13 ·
Simplifying Digital Logic Equations: Using Karnaugh Maps and 2x2 Method
- theBEAST
- · Replies 1 ·
Calculating Forces Homework: Net Force & Friction
- lola0706
- · Replies 3 ·
Solving Circuit: Find Total Capacitance & Understand Repercussions
- MathewsMD
- · Replies 18 ·
Calculating (t1-t2): Three Bright Fringes on Inclined Glass Plates
- Eats Dirt
- · Replies 11 ·
Finding current between nodes using superposition principle
- grekin
- · Replies 7 ·
How Does Material Choice Impact Physics Experiments on Absolute Zero?
- tj19926
- · Replies 7 ·
Heat and final temperature problem
- narutoish
- · Replies 8 ·
Physics-please check answer (multiple choice question)
- suzy123
- · Replies 2 ·
Motion of a Charged Particle in a Constant Magnetic Field
- etcicco
- · Replies 7 ·
Combining Equations for Solving Complex Problems
- aboojoo
- · Replies 5 ·
What is the magnitude of the charge on a second object?
- rainyday4511
- · Replies 5 ·
Coefficient of Friction of a piano
- Medgirl314
- · Replies 17 ·
Three parallel planes - calculating charge
- Rugile
- · Replies 11 ·
Calculate Coulomb: Help Solving Homework Problem
- Physicsrapper
- · Replies 1 ·
Solving Stick Thrown in Air with Initial Condition
- Tanya Sharma
- · Replies 4 ·
Work done by doubling the magnetization of a rod
- Emspak
- · Replies 7 ·
What Is the Acceleration of a Charged Sphere Fired Toward a Fixed Charge?
- miniake
- · Replies 3 ·
Calculate Voltage: 1000V from 10 A, 100m Waterfall
- Physicsrapper
- · Replies 3 ·
Simple Op-Amp Inverting Amplifier
- xWaffle
- · Replies 1 ·
What are the dimensions of force?
- alingy1
- · Replies 1 ·
Physics- Jet Engine Force and Rocket Kinetic Energy Calculation
- suzy123
- · Replies 1 ·
How Does the Inelasticity of String AP Affect Tension in a Particle System?
- Dumbledore211
- · Replies 5 ·
How Does Linear Charge Density Affect Electric Field and Potential at a Point?
- iScience
- · Replies 3 ·
Finding Work from Force Equation
- mintsnapple
- · Replies 6 ·
Projectile motion hitting angle
- loops496
- · Replies 13 ·
Velocity on a hill Kinematics Problem with Dynamics
- alingy1
- · Replies 1 ·
Person in cart traveling down a valley
- redworld33
- · Replies 1 ·
How Do You Calculate Total Displacement Using the Component Method?
- heythere1010
- · Replies 1 ·
Acceleration of 1.44m/s^2: Solving Tension Problems
- Garrett21
- · Replies 8 ·
Find the displacement in a word problem
- Natko
- · Replies 1 ·
Attached: Solving Homework Equations
- c0der
- · Replies 6 ·
Electric PE as a dipole changes its orientation in an electric field
- GodPlaysDice
- · Replies 1 ·