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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LR circuit with 0.2 H inductor and 330 Ω resistor time constant and voltage drops
- hopkid
- · Replies 2 ·
How Long Does a Call Travel via Satellite Between Quito and Belem?
- blue_lilly
- · Replies 2 ·
Calculating Static Frictional Force on an incline
- Shadow236
- · Replies 4 ·
Possible resistances using 3 resistors?
- carnivalcougar
- · Replies 16 ·
Calculating Power Output of a Car Accelerating from 0 to 27 m/s in 60 seconds
- Medgirl314
- · Replies 15 ·
True/False Questions about Capacitance
- P1nkButt3rflys
- · Replies 3 ·
Force Diagram, Position vs Time Plot: Construct, Calculate, Sketch
- BrownBoi7
- · Replies 2 ·
How does wheel angle affect sliding speed down a slope?
- adjacent
- · Replies 49 ·
Calculating Final Speed of a Crate on a Ramp with Initial Velocity of 0.6 m/s
- hanzlikm
- · Replies 4 ·
How Do Ions Achieve Their Velocity in a Mass Spectrometer?
- Emspak
- · Replies 3 ·
Single Degree-of-Freedom Problem
- aminbpy
- · Replies 2 ·
Single Degree-of-Freedom Systems
- aminbpy
- · Replies 1 ·
Ideal Batteries' Internal Resistance
- LowerMammal
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Why Is Tension T=2mg and Not T=mg at Time t=τ?
- user5
- · Replies 2 ·
Finding the Transferred Energy for a Block Sliding Down a Ramp
- greenglasses
- · Replies 3 ·
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 ·
Go-cart lighting circuit with five bulbs and two batteries
- 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 enthalpy for propane combustion at 30°C and 1.08 atm
- giokara
- · Replies 2 ·
Projectile launched at 60° with velocity change -20 y^ m/s
- physicos
- · Replies 5 ·
Projectile Motion - Range of projectile
- coggo8
- · Replies 5 ·
Vertical projectile with initial velocity 400 m/s
- 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 work calculations?
- 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 ·
How much force and torque should motors have for a pipe-climbing robot?
- 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 ·
Checking moment calculations for points A, B and C
- 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 ·
Finding total capacitance with multiple current paths
- MathewsMD
- · Replies 18 ·
Finding thickness difference from three bright fringes between 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 ·
Work to stop object traveling twice as fast
- 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 ·
Finding battery voltage from engine power and weight lifted
- 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 ·