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 to Determine Max Extension of a Spring in a Frictionless System?
- Avi1995
- · Replies 5 ·
Landing a 747 with only friction
- armolinasf
- · Replies 3 ·
Electric Potential two metal balls find final velocities
- Cisneros778
- · Replies 1 ·
Density change due to thermal linear expansion
- forestmine
- · Replies 11 ·
Calculating the Height of a Frictionless Loop Launch
- True__Fiction
- · Replies 2 ·
HELP WITH AP PHYSICS- 5 min drill Multiple choice easy?
- girlphysics
- · Replies 34 ·
Which direction does friction point when a car goes around a curve?
- Supernejihh
- · Replies 1 ·
Moments Problem Regarding Sign Convention?
- -overrated
- · Replies 9 ·
Proving E must exceed the min potential
- emob2p
- · Replies 2 ·
What Does the Plane's Position and Velocity Indicate About Its Flight Status?
- XodoX
- · Replies 1 ·
Taylor series expansion for gravitational force
- physics1311
- · Replies 2 ·
DC Circuits - How to Determine a Bulb's Brightness
- jkface
- · Replies 7 ·
Meteorite impact temperature: 670kg aluminum at 14km/s
- thenewbosco
- · Replies 9 ·
Work/Energy problem at an angle
- Heather_
- · Replies 2 ·
Average temperature of a hot air balloon using Archimedes principle
- zezima1
- · Replies 1 ·
Momentum and Newton's Gravitation force question (2 stars)
- physics1311
- · Replies 6 ·
Calculating Pressure of Water Tower for 2 Houses
- Bjamin0325
- · Replies 2 ·
How to measure the electrical resistance of a copper sulphate solution
- kerschel
- · Replies 1 ·
Magnetic field inside a conducting wire with cylindrical hole
- christof6869
- · Replies 3 ·
Final charge when connecting two charged capacitors in parallel
- thelonious
- · Replies 9 ·
Calculate the total charge on a sphere
- nosmas
- · Replies 3 ·
Spatial Separation in Train and Earth's Frame of Reference
- justinh8
- · Replies 5 ·
Four Equidistant Particles in electric fields
- C6ZR1
- · Replies 37 ·
Finding angular velocity vector for rigid body rotating at 3 rad/s
- 4real4sure
- · Replies 9 ·
Point charge Exam review question
- AnthroMecha
- · Replies 6 ·
Relation of Energy Fluxes of Two Objects
- Airsteve0
- · Replies 1 ·
Pressure and Temperature - Quick Concept Check
- forestmine
- · Replies 4 ·
Check my Throw the Ball lab. (2D kinematics, force, work)
- ZamielTheGrea
- · Replies 1 ·
Does mirror reflection cause 180° phase shift in linear polarization direction?
- Niles
- · Replies 4 ·
Power of an Ideal Refrigerator - Carnot Engines
- forestmine
- · Replies 6 ·
Find shortest distance from a point along a vector to a plane
- thornear
- · Replies 9 ·
How Do You Calculate the Amount of Heat Transferred in Thermodynamics?
- VitaX
- · Replies 1 ·
A question on projectile motion
- jysim
- · Replies 1 ·
What is the Maximum Safe Upward Acceleration of a Block Lifted by a Crane?
- raamishstuden
- · Replies 3 ·
How do I calculate vertical velocity?
- Elihu5991
- · Replies 15 ·
How to calculate the ratio of weight?
- asteorit
- · Replies 4 ·
How Is Field Strength Equal to Potential Gradient in Electric Fields?
- gabloammar
- · Replies 5 ·
Magnetic force on -4nC charged particle in 3D field
- jhosamelly
- · Replies 12 ·
Understanding pressure in fluids
- aaaa202
- · Replies 1 ·
A basic Theory Question (Electric Field Mapping)
- smashbrohamme
- · Replies 1 ·
Dynamics A Level Force Questions
- raamishstuden
- · Replies 1 ·
Conceptual Question - Newton's Second Law
- PeachBanana
- · Replies 1 ·
Two masses on a massless pulley with external force
- tonicandgin
- · Replies 5 ·
Man in a seat suspended by rope passing over a pulley
- chaotiiic
- · Replies 6 ·
Two masses over a pulley with rotational inertia
- eyeshiled21
- · Replies 9 ·
Trying to find mass given force, distance, and time.
- jad6016
- · Replies 2 ·
Electron and Proton Collision (relativity)
- khfrekek92
- · Replies 10 ·
How Do You Calculate the Change in Velocity of a Tennis Ball?
- nesan
- · Replies 3 ·
How Do Forces Between Protons and Electrons Compare in Physics?
- Phy726
- · Replies 5 ·
Finding the accelration of a particle in a electric field?
- lg123498
- · Replies 8 ·
Determining Coefficient of Kinetic Friction (mew)
- benm224
- · Replies 1 ·
Wavelength of the 2nd Overtone of a string.
- MissKaylaPaige
- · Replies 6 ·
Calculating Elastic Length in Vertical Circular Motion
- Nightrider00
- · Replies 6 ·
Motion diagram: why do the green arrows point left if acceleration points right?
- Miike012
- · Replies 1 ·
How to Solve a Kinematics Problem?
- Joe_K
- · Replies 1 ·
Projectile Motion ball velocity
- shrutij
- · Replies 2 ·
What Does Δr Represent in the Roche Limit Formula?
- PChar
- · Replies 1 ·
EFields of Insulating hallow sphere around conductive hallow sphere
- ParoXsitiC
- · Replies 7 ·
Relativistic effects on an electron
- khfrekek92
- · Replies 5 ·
Replace with equivalent force-couple system?
- SUCRALOSE
- · Replies 1 ·
Equivalent Resistance of a Ciruit
- GeorgeCostanz
- · Replies 3 ·
Calculating error in gradient of a graph
- yardy_genius
- · Replies 1 ·
What Are the Different Types of Acceleration in Non-Uniform Motion?
- LearninDaMath
- · Replies 1 ·
Finding weight and tension with a 110 N strut at 55°
- jillime
- · Replies 8 ·
Finding the direction angle of projectile initial velocity
- nesan
- · Replies 1 ·
Football 2D Motion: Time in Air
- PhysicsCCR
- · Replies 2 ·
Sailboat problem- components of acceleration
- shrutij
- · Replies 2 ·
Projectile motion of a thrown rock
- Mdhiggenz
- · Replies 7 ·
Object Thrown Vertically Upward
- marvolo1300
- · Replies 1 ·
Wave Equation in 1-d Proof/Verify
- hitman0097
- · Replies 2 ·
Use Uncertainty principle to find gound state energy?
- humanist rho
- · Replies 1 ·
Newton's second law of motion questions
- Ereny
- · Replies 8 ·
How to get beat frequency from graph
- kthejohnster
- · Replies 1 ·
Calculating Entropy of a Star using Heat Capacity
- khfrekek92
- · Replies 2 ·
E field of a hemisperical shell
- nosmas
- · Replies 3 ·
Calculating Electric Field of Insulating Spherical Shell
- nosmas
- · Replies 3 ·
Moments and Couples: Find the Moment of 200N Force
- SUCRALOSE
- · Replies 1 ·
How Much Power Does a Man Generate Running Up Stairs Compared to a Light Bulb?
- invincible1
- · Replies 6 ·
How Do You Calculate the Minimum Deceleration to Prevent a Train Collision?
- dfnj123
- · Replies 1 ·
Solving for Motion Information on a elevator and some lights
- Dko
- · Replies 5 ·
When do two cars collide if one accelerates toward a stationary one?
- plaguemelove
- · Replies 1 ·
What is the Parity of a System Described by a Wavefunction?
- humanist rho
- · Replies 5 ·
How can a car maintain traction while speeding around a banked curve?
- funnyboy1000
- · Replies 2 ·
Parallel plate capacitor,displacement current.
- humanist rho
- · Replies 1 ·
Physics Test Question Solution?
- MyNameIsMud
- · Replies 2 ·
Faintest star visible through binoculars and telescopes vs naked eye
- Xyius
- · Replies 8 ·
Walking Speed of a Dinosaur: How Does Leg Length Affect Natural Walking Pace?
- AlonsoMcLaren
- · Replies 4 ·
Light through the corner of a glass block
- T7
- · Replies 1 ·
Finding coefficient of expansion when ruler also expands
- rdn98
- · Replies 3 ·
Finding electric potential given a cylindrical configuration
- carloz
- · Replies 4 ·
What is the difference between proton-electron collison adn electron capture?
- binbagsss
- · Replies 1 ·
Force applied to pulley connected to two blocks
- funnyboy1000
- · Replies 21 ·
Why need a screen to display interference
- alkmini
- · Replies 2 ·
Solving Puck Force Question: Find Acceleration
- Supernejihh
- · Replies 1 ·
Two Planets Orbiting an Empty Spot
- SHISHKABOB
- · Replies 9 ·
What Is the Maximum Kinetic Energy of a Photoelectron with a 400 nm Wavelength?
- drawar
- · Replies 2 ·
General Atwood system with moment of inertia
- kev0
- · Replies 2 ·
How Is the Value of 'm' Determined in Interference Equations?
- hyde2042
- · Replies 3 ·
I attached the problem.In the solutions my professor posted, he
- pyroknife
- · Replies 6 ·
Proper Calculation of Acceleration in Two-Force Problems
- Supernejihh
- · Replies 2 ·