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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Where Does a Baseball Have the Most Potential Energy?
- momoegy6x
- · Replies 8 ·
Energy to dissociate a diatomic molecule from equilibrium
- Same-same
- · Replies 3 ·
Calculating Distance Fallen for a Dropped Object
- lalahelp
- · Replies 4 ·
What is the period of an oscillating spring with known variables k, m, and g?
- Villyer
- · Replies 2 ·
Question with Archimedes' principles
- john8765
- · Replies 3 ·
How Do Two Point Charges Affect Potential Above a Grounded Conducting Plane?
- warfreak131
- · Replies 2 ·
Physics Essay: Long-Range Elect. Trans. Possibilities
- benbennza1
- · Replies 3 ·
Cannon in a railway carriage; recoil
- drunkenrobot
- · Replies 1 ·
Schrodinger Equation: Particle in a Box
- jgens
- · Replies 2 ·
Finding normal force of moving crates
- shahin93
- · Replies 1 ·
What is the work done by friction?
- snash1057
- · Replies 1 ·
Thermodynamics, calculating the time it will take water to boil away
- madjockmcfers
- · Replies 5 ·
Why does sound pressure vary with 1/r?
- Bitruder
- · Replies 1 ·
Simply cannot get my calculator to give me the correct answer?
- Jowin86
- · Replies 3 ·
2 blocks on top of each other, applied force, friction, and tension
- TFOrange
- · Replies 5 ·
Angles Formed by Particles' Positional Vectors
- davidpac
- · Replies 5 ·
Finding acceleration of two boxes on a ramp
- nukeman
- · Replies 17 ·
Velocity Using Parametric Equations
- GreenPrint
- · Replies 3 ·
Finding mass within a pulley system. Finding coefficient of friction
- Serendipitydo
- · Replies 10 ·
Light also consists of particles
- 4everlonging
- · Replies 5 ·
What Is the Work Done by the Gas and the Final Gas Temperature?
- Legendon
- · Replies 1 ·
What magnitude of force must the worker apply?
- blackandyello
- · Replies 4 ·
Dieletric Boundary Conditions (Parallel Plate Capacitor)
- jegues
- · Replies 1 ·
Small oscillations about equilibrium
- Knissp
- · Replies 8 ·
What is the magnitude of the change in momentum of the racquet ball?
- aszymans
- · Replies 2 ·
Elastic collision between particles of equal mass
- davidpotts
- · Replies 13 ·
Thermodynamics final temperature of gas
- Legendon
- · Replies 7 ·
Force of package B on package A sliding down a ramp
- nukeman
- · Replies 4 ·
The work done by an adiabatic process?
- JustinLiang
- · Replies 5 ·
Current carrying wire and Earth’s magnetic field directions
- Qaztgbe
- · Replies 2 ·
Final pressure when water is injected into a closed tank of vapor
- matt222
- · Replies 2 ·
Work/Energy graph of car problem?
- QuarkCharmer
- · Replies 8 ·
What is the frictional force on the block in each experiment?
- theunloved
- · Replies 2 ·
Momentum of ball bouncing off wall
- aszymans
- · Replies 3 ·
Two masses connected by string over pulley on incline: acceleration, tension, friction
- madeeeeee
- · Replies 5 ·
Is my solution for the acceleration of two blocks correct?
- ckboii89
- · Replies 7 ·
Finding launch angle for ball bouncing 0.70 m away and reaching 3.10 m height
- nc1617
- · Replies 2 ·
How to find tension in strings pulling on carts.
- drunkenrobot
- · Replies 5 ·
Max velocity up a frictionless inclined plane
- olliepower
- · Replies 1 ·
How Do Tensions in a Massless, Frictionless Pulley System Compare?
- theunloved
- · Replies 1 ·
Force vs. Energy Curve of MgO Ionization (.22 nm Distance)
- ShayanJ
- · Replies 1 ·
How Does Initial Velocity Direction Affect Spring Motion Velocities?
- hughes
- · Replies 1 ·
Pseudoforces or fictitious forces
- logearav
- · Replies 2 ·
Magnitude and Direction of E-field at a Point Due to a Charged Rod
- MurdocJensen
- · Replies 3 ·
Static equilibrium problem:A-shaped ladder
- jonathng
- · Replies 2 ·
Trajectory Problem: Shooting a cannon
- nadong2dong
- · Replies 1 ·
Find a curve such that time travel is minimum
- ksuer
- · Replies 4 ·
Force as function of velocity: deriving displacement from F(v)=-Cv²
- BreakPoint
- · Replies 1 ·
Finding electric field magnitude from potential difference across 2m stick
- medlyra
- · Replies 1 ·
Simple harmonic motion: find amplitude given k, x, v, and a
- jdp1991
- · Replies 8 ·
What Is the Angle of Total Acceleration for a Race Car on a Circular Track?
- Sesmo
- · Replies 1 ·
Minimum pulse duration and transmission time for telephone and space probe signals
- WJSwanson
- · Replies 1 ·
"Scale in Elevator: Should Student Worry?
- Crusaderking1
- · Replies 2 ·
Why Do Different Books Use X=Acos(wt) and X=Asin(wt) for Oscillations?
- SAT2400
- · Replies 2 ·
Expressing a surface in cartesian coordinates from spherical
- acedeno
- · Replies 1 ·
Find Gravitational Force on an object
- trivk96
- · Replies 2 ·
Magnetic field of circular loop
- Qaztgbe
- · Replies 3 ·
Is there net force when turning?
- trivk96
- · Replies 1 ·
Solve Tension Problem: Two Blocks Connected by String, Force of 165N
- Miike012
- · Replies 2 ·
Magnitude of Electric Field from an Atom
- Hypnos_16
- · Replies 7 ·
Work Done in a polytropic process
- juggalomike
- · Replies 3 ·
Time dilation and interstellar travel
- Fewmet
- · Replies 1 ·
Matching decimal places in measurements and uncertainties
- conspicuous
- · Replies 1 ·
Hole drilled through center of the earth
- alexmahone
- · Replies 10 ·
Newton's Laws/Conservation of Momentum/Kinetic Energy
- lucidion24
- · Replies 4 ·
Simple Thevenin equivalent resistance problem
- DrOnline
- · Replies 9 ·
Theory behind measuring gamma ray absorption and inverse square law
- Liquidxlax
- · Replies 4 ·
Three problems concerning light interference and snells
- minerslave4
- · Replies 1 ·
Perfectly inelastic collision and inelastic collision
- Kurokari
- · Replies 2 ·
What Are the Two Possible Launch Angles for a Ball to Land 5 Meters Away?
- jumbo123
- · Replies 4 ·
Application of Gauss's Law to Charged Insulators
- EngineerHead
- · Replies 3 ·
Distribution of Charge along a straight line
- Instinctlol
- · Replies 6 ·
The Physics of Frictionless Blocks
- EricSomin
- · Replies 3 ·
Calculating Max Speed for 5G Turn in Aircraft
- chinook177
- · Replies 2 ·
How Do You Correctly Calculate Tension in a Statics Problem?
- Ortix
- · Replies 10 ·
Magnitude of average acceleration?
- Schulz
- · Replies 4 ·
Drag force of a spherical BB ammo under water
- Xenekaro
- · Replies 4 ·
Does a rope exert different forces on blocks of unequal mass over a pulley?
- 1MileCrash
- · Replies 15 ·
How Does Spontaneous Decay Relate to Newton's First Law?
- logearav
- · Replies 1 ·
Solving Projectile Motion Equations for Initial Velocity and Angle
- jumbo123
- · Replies 3 ·
Calculate the chi-squared probability for the fit
- blueyellow
- · Replies 1 ·
Will remaining ceiling lights be brighter if one bulb burns out?
- Celluhh
- · Replies 15 ·
A Projectile Fired At A 45 Degree Angle
- miniradman
- · Replies 38 ·
Motion of a cylinder attatched to a spring
- polarcheese
- · Replies 3 ·
Object hangs from rope on a railroad car
- cassienoelle
- · Replies 10 ·
Why do funny mirrors produce distorted images?
- Celluhh
- · Replies 1 ·
Find mass using acceleration and tension
- cassienoelle
- · Replies 8 ·
What Linear Mass Density Should a Violin A4 String Have Under 60 N Tension?
- mtreichl
- · Replies 3 ·
How do you find the acceleration? How do you find the coefficient of friction?
- crazy004
- · Replies 1 ·
Friction in an inclined right-angle trough
- Zorodius
- · Replies 3 ·
How Do Two Ladders Hinged Together Maintain Equilibrium?
- xduckksx
- · Replies 1 ·
Pascal's law and variation of pressure with depth
- logearav
- · Replies 9 ·
Unequal Accelerations in Double Atwood Machine
- id the sloth
- · Replies 1 ·
Convert spring/mass system units from feet and pounds to SI?
- Meadman23
- · Replies 3 ·
What is the necessary force to move a crate on a rough surface?
- miglo
- · Replies 5 ·
Right hand rule for magnetic field around parallel wires
- pyroknife
- · Replies 7 ·
The relationship between normal force and contact
- siriux
- · Replies 5 ·
Why are the coordinate axis different for block M1 and M2 in this scenario?
- Miike012
- · Replies 3 ·
What is the coefficient of friction?
- g65hy
- · Replies 10 ·
What is the coefficient of friction?
- alisong
- · Replies 1 ·