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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A positive test charge q is released near a positive fixed charge Q.
- Curious314
- · Replies 2 ·
Point Charges Composing A Sphere
- RockMc
- · Replies 4 ·
Kicking a Rugby Ball to Clear 3m Crossbar
- Kawakaze
- · Replies 9 ·
Can electric field lines intersect in free space?
- Curious314
- · Replies 5 ·
Two capcitors connect in parallel, calculate V
- D.J Falcon
- · Replies 2 ·
Finding Q1 and Q2 in coulombs law
- D.J Falcon
- · Replies 2 ·
Derivation of the Kinematic Equations
- alexgraham
- · Replies 11 ·
Proving Conservation of Momentum
- WillTheBassis
- · Replies 1 ·
Special relativity abduction from earth question
- xma123
- · Replies 1 ·
The lowest pressure on the balloon
- Phatossi
- · Replies 2 ·
Temperature coefficient of resistance calculation
- Preksha
- · Replies 8 ·
Speed dropping to zero when landing during a fall
- sgstudent
- · Replies 9 ·
What is the force of the spring constant?
- tgould43
- · Replies 3 ·
Calculating Rafter Size for Douglas Fir-Larch
- raiderUM
- · Replies 5 ·
How does electrostatic spray painting work?
- diudiu
- · Replies 3 ·
What distance does a canoe move when a woman walks across it?
- anthonych414
- · Replies 3 ·
Newton's third law when moving our body
- sgstudent
- · Replies 14 ·
What Is the Angular Velocity of a Spinning Disk?
- SalsaOnMyTaco
- · Replies 6 ·
Find the total displacement on a velocity-time graph
- freefalling
- · Replies 12 ·
What is the Tension in a Rotating String?
- Rohaaan
- · Replies 4 ·
Tarzan Physics Question with Kinematics, Energy, Forces
- sangdeep
- · Replies 1 ·
Bifilar Pendulum: Can't justify/create a hypothesis + analyze results
- lavenders2
- · Replies 3 ·
Static Equilibrium Door Problem
- elianaphys
- · Replies 3 ·
Rotational Motion- Parallel Axis Theorem?
- elianaphys
- · Replies 1 ·
Converting 3.60 × 10⁵ to standard notation while preserving sig figs
- rishay95
- · Replies 3 ·
Parallel plate conductors question
- newageanubis
- · Replies 1 ·
Calculating Power of Outdoor Heater: A Puzzling Problem
- varyvod001
- · Replies 5 ·
An alpha particle is fired at a uranium atom
- newageanubis
- · Replies 3 ·
Why is my ideal gas law calculation giving 6457 m³ for a container with 2.80 mol?
- BryceHarper
- · Replies 7 ·
Action and reaction forces in Newton's third law
- Adam17
- · Replies 1 ·
Solving for the Mass of M2 in an Equilibrium System?
- izelkay
- · Replies 7 ·
Finding accleration of object after collision
- Adam17
- · Replies 5 ·
Physics Final Exam Sample Question
- zainbo
- · Replies 15 ·
Centroid of a right angle triangle
- D0m
- · Replies 1 ·
Resonant frequency of a child on a swing with changing pivot distance
- xuhhad
- · Replies 3 ·
Mass of used hydrogen in an isothermal process
- Uku
- · Replies 10 ·
Question related to SHM and free body diagrams
- ehabmozart
- · Replies 17 ·
Kinetic Energy Loss of Colliding Billiard Balls
- SalsaOnMyTaco
- · Replies 8 ·
Charge distribution on a conductor in an external field
- Saitama
- · Replies 20 ·
Real height and apparent height
- jadelamlam
- · Replies 2 ·
How Does Air Resistance Affect Theoretical vs Actual Projectile Range?
- Parkstrailer
- · Replies 5 ·
To find out the compression of the spring
- icecool8
- · Replies 7 ·
Why Doesn't the Water Level Decrease When an Ice Cube Melts?
- Sam2847
- · Replies 3 ·
Refraction - when can you see past the label?
- jadelamlam
- · Replies 6 ·
Mass Hanging in Center of Chain Problem
- rocapp
- · Replies 9 ·
Solve md²x/dt² + c(dx/dt) - kx = 0 using characteristic equation
- phys2
- · Replies 1 ·
Two masses falling at different heights from H to h
- rustyshackle
- · Replies 5 ·
Finding the magnitude of an electric field with 5 charges.
- Ganar
- · Replies 4 ·
Calculating Pressure Change in Gases: Hand Pump and Container Setup
- curiousjoe94
- · Replies 16 ·
Calculating Acceleration in a Rifle-Bullet System
- Justhelp
- · Replies 16 ·
A.: Finding Center of Mass for a Rectangular Surface with a Hole
- Jalo
- · Replies 1 ·
Velocities after totally elastic collision
- Fun Value
- · Replies 3 ·
Special Relativity and Kinematics Problem
- ToothandnaiL
- · Replies 6 ·
Distance traveled by buses and acceleration concepts
- shinnsohai
- · Replies 4 ·
Universal gravitation 11- determine the gravitational force of attraction
- dani123
- · Replies 21 ·
Universal gravitation 5- determine which satellite has smaller period
- dani123
- · Replies 1 ·
Universal gravitation 9- determine the mass of planet Jupiter
- dani123
- · Replies 5 ·
Universal gravitation 8- determine the speed of a satellite
- dani123
- · Replies 2 ·
Universal gravitation 7- determine the gravitational force of attraction
- dani123
- · Replies 2 ·
Universal gravitation 6-determine strength of gravitational field
- dani123
- · Replies 3 ·
Model a rigid body made of two points linked by a rigid bar
- cicciolo
- · Replies 5 ·
What is the Modulus of the Complex Number exp(√i)?
- unscientific
- · Replies 4 ·
Compute the force the a coloumn of water exerts on an object.
- IsomDan
- · Replies 8 ·
Calculate ball velocities after slope bounce
- DrKrunklehorn
- · Replies 1 ·
Force on frame walls from ants using kinetic theory
- johnconnor
- · Replies 6 ·
Variation of Kinetic Energy with temperature
- johnconnor
- · Replies 1 ·
Universal gravitation 3- determine the mass of the Earth
- dani123
- · Replies 1 ·
Expansion and contraction of a gas
- jadelamlam
- · Replies 3 ·
EMF v time graph vs change in flux v time
- alv
- · Replies 3 ·
Problem of torque transmission and determining how to achieve a velocity
- Strontium90
- · Replies 12 ·
Calculating Fission Energy from Uranium Fuel
- ehabmozart
- · Replies 7 ·
Unit Conversion: Astronomical Units, Parsecs and Light Years
- iwantpi
- · Replies 3 ·
Focal length of a spherical mirror solar cooker made from a beach ball
- MBEE
- · Replies 3 ·
How Is Work Calculated in a Friction Scenario with Constant Velocity?
- nbroyle1
- · Replies 7 ·
Complicated path question - 2D vectors
- Kawakaze
- · Replies 2 ·
Topic: Motion Analysis of Passing Cars with Fixed Power and Variable Force
- TszHin
- · Replies 2 ·
Question on spring constant w/potential energy
- yumemirai
- · Replies 2 ·
Spring constant and energy with 500g mass stretched 8.0 cm
- Ereny
- · Replies 2 ·
Solving a Momentum Conservation Problem
- Ereny
- · Replies 1 ·
DeBroglie matter waves and double-slit
- Darrinr769
- · Replies 1 ·
Mass of 100 trillion uranium-238 atoms
- ehabmozart
- · Replies 1 ·
Does the Spring Continue to Stretch Indefinitely Beyond the Elastic Limit?
- rollcast
- · Replies 3 ·
Calculate F given m, d, and v should be easy.
- TrpnBils
- · Replies 9 ·
Probability of finding particle in 1D finite potential well
- Ryomega
- · Replies 20 ·
Finding height and time for a dropped wrench
- theintarnets
- · Replies 8 ·
Calculating Electric Potential in a Uniformly Charged Spherical Shell
- sm09
- · Replies 11 ·
How Do I Calculate the Rebound Heights of a Dropped Golf Ball?
- manal950
- · Replies 2 ·
Magnitude and direction of electric field at point P
- Ryomega
- · Replies 2 ·
Light, Wavelength, Space, and the color of Stars
- Qube
- · Replies 1 ·
Year 12: Cambridge Physics Problem (Gas and Pressure)
- johnconnor
- · Replies 3 ·
How Does Temperature Influence Current Flow in Semiconductors?
- Miike012
- · Replies 1 ·
Finding Total momentum of a system
- mcordi
- · Replies 2 ·
Radio wave interference with ground reflection
- cryora
- · Replies 1 ·
Does light reflect at the water-flint glass boundary?
- physicsguy101
- · Replies 2 ·
A 1600 kg object is initially at rest 400 km above the earth’s surface.
- Scarlett
- · Replies 3 ·
Projectile Motion in Combination with Energy Problem
- Bound
- · Replies 1 ·
Calculating half life (Decay Constant)
- franwilder
- · Replies 3 ·
Five kinematics and force problems with rope tension and projectiles
- xcfzm94
- · Replies 3 ·
Conceptual question concerning work and nonconservative forces
- JYZero
- · Replies 3 ·
Finding diameter, extension and thickness from stress and strain
- D0m
- · Replies 19 ·