Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
Threads
Oxygen Tank: Question about gas laws
- electricblue7
- · Replies 3 ·
Ball in Free-Fall: Find Final Speed
- aaronb
- · Replies 3 ·
Calculate the magnitude of the total angular momentum of the woman
- Black_Hole???
- · Replies 10 ·
How Does Block B's Motion Relate to Block A in a Pulley-Cable System?
- electricblue
- · Replies 2 ·
Calculate Schwarzschild Radius of Earth-Sized Mass
- xRandomx210
- · Replies 2 ·
Intensity of a laser through a converging lens
- k3N70n
- · Replies 4 ·
How Do You Calculate Steam Pressure in a Piston Cylinder?
- silntassassin
- · Replies 5 ·
How Does Angular Momentum Change After a Collision in Rotational Dynamics?
- guitarman
- · Replies 3 ·
RC circuit and discharging a capacitor
- -EquinoX-
- · Replies 22 ·
How Does the Angle of Polarizing Sheets Affect Transmitted Light Intensity?
- phy112
- · Replies 4 ·
Velocity, Time, and Distance Problem
- adds17
- · Replies 1 ·
Energy conservation answer check
- Jack21222
- · Replies 1 ·
What is the focal length of the lens?
- keemosabi
- · Replies 1 ·
How fast does the disk move when pulled by a string?
- kritzy
- · Replies 2 ·
A very simple kinetic energy problem
- Todd88
- · Replies 3 ·
Center of mass for earth-moon system
- Punchlinegirl
- · Replies 4 ·
How Do You Calculate Acceleration and Friction for a Rolling Spherical Shell?
- Black_Hole???
- · Replies 3 ·
How Far Does a Charged Particle Travel Before Stopping?
- lee_chick
- · Replies 3 ·
Zero Induced EMF in a Changing Magnetic Flux Loop
- Melqarthos
- · Replies 3 ·
Specific charge. Don't understand how to convert to Coulombs
- orgla
- · Replies 6 ·
Can You Calculate the Rock's Speed Without Considering Sound Delay?
- katyross
- · Replies 4 ·
Solve Motion & Force: Qs 41 & 42 in Image
- siddscool19
- · Replies 1 ·
Complicated mechanics resolving forces and angles question
- xllx
- · Replies 3 ·
How do you work out the tension and angle of this block in equilibrium?
- xllx
- · Replies 5 ·
Recoil of astronaut pushing a tool
- Avis
- · Replies 2 ·
Questions from Fundamentals of physics 8th editon-Friction
- luthien09
- · Replies 1 ·
Relative Motion Question Involving Rain and Moving Car
- ff_yy
- · Replies 3 ·
An electron shot from the back of a T.V. help?
- acsis
- · Replies 5 ·
RC Circuit Differential Equation
- sritter27
- · Replies 2 ·
Electricity and Magnetism Question
- Davio
- · Replies 5 ·
Temperature and Thermal Energy of coffee cup
- mppaki
- · Replies 4 ·
Young's double slit experiment beams
- rayhan619
- · Replies 20 ·
Solving a Circuit - Uncover the Concept Missing
- patm95
- · Replies 1 ·
How Do You Calculate the Density of a Planet Based on Satellite Orbit Time?
- shadowice
- · Replies 3 ·
Calculating the Focal Length of a Concave Mirror
- itryphysics
- · Replies 1 ·
Fusion Reaction really long problem
- jchojnac
- · Replies 14 ·
Homework problem: Average speed and time
- Lindseyosu
- · Replies 1 ·
Finding a Lost Key with a Searchlight: Calculate the Angle
- itryphysics
- · Replies 5 ·
U Texas Physics Rotational Motion
- bikerboi92
- · Replies 3 ·
How Does Temperature Affect the Period of a Pendulum?
- jabbie3
- · Replies 1 ·
What is the Vector r in the Ferris Wheel Momentum Problem?
- fball558
- · Replies 4 ·
Gravitational Forces: Ratio of Earth & Sun on Moon
- 312213
- · Replies 6 ·
What is the Charge of a Ball in an Electric Field?
- KhaNgo
- · Replies 3 ·
How Does Compression Affect Air Density in a Cylinder?
- 83bob83
- · Replies 5 ·
How can I find Vab in a circuit using Mesh Current Analysis?
- suspenc3
- · Replies 4 ·
Inclined plane problem, weight of subject
- ellano
- · Replies 3 ·
Change in the magnitude of the ball's momentum.
- superjen
- · Replies 1 ·
Gravitational Acceleration Problem
- BandGeek13
- · Replies 5 ·
Heisenberg Uncertainty Derivation
- XJellieBX
- · Replies 2 ·
What is the magnetic field in the region of the coil?
- maxsthekat
- · Replies 2 ·
How large is the voltage generated?
- shimizua
- · Replies 2 ·
Calculating Power Using Applied Force and Velocity: Quick Homework Question
- nelly42688
- · Replies 4 ·
Calculating Power for Pushing a Lawnmower at Constant Speed
- ceday
- · Replies 3 ·
Calculating Energy in Simple Harmonic Motion: Mass-Spring System
- doc1388
- · Replies 1 ·
How Do Pendulum and Planetary Motions Compare and Contrast?
- m.l.
- · Replies 1 ·
Mechanics- tension in a coupling
- xllx
- · Replies 5 ·
Calculate the moment of inertia of a right triangle
- homeslice64
- · Replies 1 ·
Windsurfer making a turn (Centripetal Acceleration)
- eddyy08
- · Replies 4 ·
Unrolling of Paper (Torque/Rotational Motion)
- kritzy
- · Replies 3 ·
Very simple spring constant questoin
- The thinker
- · Replies 4 ·
Wind-Induced Pressure and Window Safety in Skyscrapers: A Scientific Analysis
- kellyneedshelp
- · Replies 15 ·
Solving Water Pressure Problems: Guidance for Parts B and C
- kellyneedshelp
- · Replies 4 ·
Work and Potential/Kinetic Energy (spring problem)
- stevebrstlct
- · Replies 2 ·
Magnetic Field - Torque on a Current Loop
- calvert11
- · Replies 2 ·
Static equilibrium marbles problem
- krko
- · Replies 2 ·
Basic MATLAB Help: Entering a Quadratic Function
- strokebow
- · Replies 6 ·
What is the coefficient of friction for a given surface and two weights?
- SimonJ
- · Replies 6 ·
Coulomb's Law Problem magnitude and direction
- swede5670
- · Replies 9 ·
U-shaped tube, pressure problem, what am i doing wrong?
- jenzao
- · Replies 1 ·
What is the force between moving charges?
- j88k
- · Replies 5 ·
The Exponential Atmosphere: How Pressure and Density Vary with Altitude
- phrygian
- · Replies 2 ·
Solid ball dropped on ground again
- vladimir69
- · Replies 7 ·
Current Through R1 After Closing Switches in RC Circuit
- driedupfish
- · Replies 11 ·
Electric Circuits Homework: Solving for Energy Delivered to Battery
- kamal242
- · Replies 2 ·
Stuck on Questions 8 & 9? Get Help Here!
- Max CR
- · Replies 6 ·
Resistance Question-Can someone help me please?
- kamal242
- · Replies 1 ·
Will the fire truck stop before running out of water?
- vladimir69
- · Replies 8 ·
Double-slit Interference for Photons and Electrons
- dcramps
- · Replies 2 ·
Help with lab - Speed of Sound in Air
- zuloon
- · Replies 1 ·
What will be the diameter of your coil?
- j88k
- · Replies 2 ·
Calculate Force and Direction of Magnetic Field on a Wire
- davidelete
- · Replies 1 ·
Quantifying a Picture: Calculating D & theta
- jcpwn2004
- · Replies 7 ·
Determine the magnitude and direction of the force on each charge
- swede5670
- · Replies 8 ·
Angular and linear acceleration
- celeramo
- · Replies 3 ·
Equilibrium sum of forces question
- fableblue
- · Replies 4 ·
Minimum Length of Emergency Escape Ramp for Truck to Stop
- seraphimhouse
- · Replies 2 ·
Where did this formula for velocity come from?
- Munky
- · Replies 5 ·
How fast must the rotor of a generator rotate?
- xswtxoj
- · Replies 5 ·
How to Calculate Volume Thermal Expansion Coefficient?
- phrygian
- · Replies 4 ·
Interference - Finding distance between slits
- mattbonner
- · Replies 1 ·
What is the intensity of the incident of light?
- phy112
- · Replies 1 ·
Elastic collisions of a sliding block
- intenzxboi
- · Replies 1 ·
Position of Center Mass Question
- yb1013
- · Replies 1 ·
Physics has to do with simple machines
- amandamolegir
- · Replies 1 ·
Calculating EM Radiation from a Star 13 Million Light-Years Away
- phy112
- · Replies 2 ·
Solving the Resistance of an Electric Water Heater
- student_fun
- · Replies 2 ·
Fabricate uniform wire out of 2.1g of copper w/ 0.3 ohm resist. - wire diameter?
- student_fun
- · Replies 2 ·
Composite beams and young's modulus
- ABoul
- · Replies 1 ·
Solving Discharging Circuit Homework
- driedupfish
- · Replies 2 ·
Calculate Length of Transmitting Antenna for 1.8 GHz Frequency
- XodoX
- · Replies 1 ·