Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
Threads
Electric field inside a spherical cavity inside a dielectric
- tanaygupta2000
- · Replies 16 ·
Help with understanding this rigid-body equilibrium problem
- Kolika28
- · Replies 4 ·
Why Is Understanding Capacitor Equations Crucial?
- Zeymare
- · Replies 3 ·
Block bombarded by particles {colision}
- LCSphysicist
- · Replies 15 ·
Lagrange equations of the first kind
- saRisky
- · Replies 1 ·
Laten heat of fusion calculation
- trying_mybest
- · Replies 13 ·
Sign conventions for work done by/on a system
- cookiemnstr510510
- · Replies 9 ·
Calculus problem regarding Thermodynamics HW (entropy for C2H5OH at 348K)
- densephysicist
- · Replies 2 ·
Succesive collisions between a ball and a wall
- LCSphysicist
- · Replies 2 ·
The figure represents a system composed of pulleys
- leticia beira
- · Replies 7 ·
Find the angle required for a 3kg block to slide down an incline
- zippyzay165
- · Replies 5 ·
What is the relationship between velocity and time on this graph?
- kalcorn
- · Replies 9 ·
When does an object have kinetic rotational energy?
- Kolika28
- · Replies 8 ·
Interpreting Stress-Strain Graph: Which Material Has the Highest Ductility?
- Bolter
- · Replies 1 ·
Mutual Inductance between a coil and a long straight wire
- harsh22902
- · Replies 6 ·
Finding the efficiency of an ideal gas with adiabatic exponent 'γ'
- PhysicsEnthusiast123
- · Replies 3 ·
Have I Done This Question Right?
- Bolter
- · Replies 13 ·
What is the shear stress in a lap joint with a double lap configuration?
- Bolter
- · Replies 2 ·
Calculating the time to cross a river
- gnits
- · Replies 4 ·
Projectile-car system and momentum
- Kolika28
- · Replies 2 ·
Finding the final y-position of a projectile
- Qube
- · Replies 8 ·
Trig type question -- Speed of sound in water and in air
- classicswiss
- · Replies 2 ·
Fastener Theory - Determining the Ideal Torque for a Bolt
- YoshiMoshi
- · Replies 2 ·
Troubleshooting 3D Vector Work: Solving Angle and Displacement Confusion
- hehedxd
- · Replies 19 ·
Coefficient of friction/conservation of energy problem
- poodle123
- · Replies 13 ·
Constructive, destructive interference help please
- SHAWN JAMES
- · Replies 10 ·
Interference pattern for two glass plates closely separated and tilted
- SHAWN JAMES
- · Replies 18 ·
Understanding rigid-body equilibrium problem
- Kolika28
- · Replies 7 ·
Motion under a force perpendicular to the velocity
- LCSphysicist
- · Replies 8 ·
How do I proceed with two different trig functions containing x on the left?
- DerbisEternal
- · Replies 8 ·
How to determine the effect of counterforce on the angle of force
- avgr
- · Replies 4 ·
Finding the distance between slits in double slit experiment
- Bolter
- · Replies 4 ·
Help with understanding this momentum problem
- Kolika28
- · Replies 4 ·
Intrinsic Concentrations are different in some books. Why?
- birkan93
- · Replies 1 ·
What happens to the c2sin(t) part of the worked solution?
- StillAnotherDave
- · Replies 3 ·
Solve Heat Pump COP Equation with Q & T
- conv
- · Replies 1 ·
Van der Waals Gas: Properties & Uses
- conv
- · Replies 1 ·
Prisoner sliding down a rope with minimum velocity
- LCSphysicist
- · Replies 29 ·
How can I calculate work done when raising a mass using W = 32r^2?
- ElectronicTeaCup
- · Replies 2 ·
Rayleigh Scattering Conceptual Question about the Color of the Sky
- PhDeezNutz
- · Replies 9 ·
Interaction of an astronaut with the CMB flux
- astroYEEET
- · Replies 2 ·
Electric field at (0,0) for this charged square conductor
- requied
- · Replies 8 ·
Solve the circuit and find all the currents in the circuit
- hmzi123
- · Replies 5 ·
Electric potential:Potential difference of test charge
- yuminie
- · Replies 4 ·
Static equilibrium: mass on beam
- jkfjbw
- · Replies 2 ·
Pushing a book against a wall and keeping it up
- Stewie117
- · Replies 17 ·
Period and Velocity of Oscillating Sphere Attached to Spring
- Nexus99
- · Replies 10 ·
Mental Health During Quarantine: Tips for Coping with Stress
- clh99
- · Replies 1 ·
To find the time to nearest appoach of a dinghy and a buoy
- gnits
- · Replies 2 ·
Correlation coefficient of a jumping particle
- Addez123
- · Replies 6 ·
Polarization of Scattered Radiation, motivating definition?
- PhDeezNutz
- · Replies 3 ·
I don't know how to get the x-y direction of position P
- requied
- · Replies 27 ·
Train deceleration and minimum stopping distances
- lol2
- · Replies 8 ·
The Time and Force Required to Empty a Syringe: What Does Science Tell Us?
- ostrik23
- · Replies 9 ·
Easy problem about a pulley accelerating
- LCSphysicist
- · Replies 7 ·
Magnetic field in a rotating uniformly-charged infinite cylinder
- sagigever
- · Replies 36 ·
Differential Pulley: Force to Balance Weight W
- LCSphysicist
- · Replies 11 ·
Car accelerating with friction and air resistance
- Baran
- · Replies 15 ·
Rolling with slipping and combined momentums
- looooop
- · Replies 14 ·
Does a square shaped line may have a circle shaped Gauss' surface
- requied
- · Replies 7 ·
Circuits and the percent change of current when the switch is closed
- ChrisWM
- · Replies 2 ·
Confusion on the magnitude of magnetic fields
- Gourab_chill
- · Replies 6 ·
Percent Change Of current when the switch is closed
- ChrisWM
- · Replies 4 ·
Calculating Total Resistance in a Circuit: Delta - Y Formula or Simpler Method?
- songoku
- · Replies 8 ·
Help solving the Rayleigh Problem in fluid dynamics please
- UFeng
- · Replies 2 ·
Suggest a geometry for headphone's speaker system
- mirreb9
- · Replies 3 ·
Magnetic field due to the current flowing in a bent wire
- Elder1994
- · Replies 1 ·
When calculating a car's acceleration, is it ok to substitute Torque?
- inv
- · Replies 3 ·
Why when the axis is pivoted, there is no torque in its direction?
- LCSphysicist
- · Replies 8 ·
Net forces on a boat (propulsion, water and air resistance)
- lucas pentland
- · Replies 3 ·
Understanding Work Calculation in an Engine: External vs. Internal Forces
- Nexus99
- · Replies 24 ·
Calculating the Variance for X^2: How to Find the Correct Solution
- Addez123
- · Replies 5 ·
Equation of motion and normal modes of a coupled oscillator
- VapeL
- · Replies 1 ·
Maximum possible speed of explosion fragments
- songoku
- · Replies 29 ·
Eddy currents in Faraday's Law Experiment
- KDPhysics
- · Replies 3 ·
Unravelling the Math Behind an Unusual Sequence
- LCSphysicist
- · Replies 1 ·
EMF shielding using a conductor
- KDPhysics
- · Replies 6 ·
Young's double slit equation problem
- sincosine
- · Replies 8 ·
How Do You Calculate the Electric Potential of a Square Plate?
- Hamal_Arietis
- · Replies 6 ·
Olympic Kinematics Problem: Reaching the Goal in Time
- KrolKuabV
- · Replies 3 ·
Kinematics problem — Calculating displacements around a circle
- SSG-E
- · Replies 16 ·
Complex Scattered polarization vector? (Conceptual)
- PhDeezNutz
- · Replies 1 ·
Kinetics Problem: Head-On Collision Between Two Cars
- Graador
- · Replies 5 ·
Calculating the expected value of a dice roll
- Addez123
- · Replies 5 ·
The final velocity = initial velocity + acceleration x time
- jamiebean
- · Replies 17 ·
Equilibrium value for carbonation level in beer
- sci0x
- · Replies 2 ·
Thermodynamics Problem: Reversible and Irreversible Processes
- Pendleton
- · Replies 1 ·
Masses, pulley, friction and rotation
- LCSphysicist
- · Replies 8 ·
Cylinder rolling without slipping on a truck
- LCSphysicist
- · Replies 8 ·
E&M: Field of a Wire with non-uniform current
- KDPhysics
- · Replies 9 ·
Understanding the Third Law of Newton — How can the forces be equal?
- chucho11028
- · Replies 7 ·
Parallel Plate Capacitor Filled with Many dielectrics
- ajhorst99
- · Replies 20 ·
Angular Rotation and Acceleration
- ocean1234
- · Replies 7 ·
Problem with gears — One geared wheel spins up another
- LCSphysicist
- · Replies 1 ·
Finding distance traveled by bullet with velocity components
- jamiebean
- · Replies 8 ·
Deceleration of rocks sliding up a hill
- jamiebean
- · Replies 4 ·
A mass being pushed up an inclined plane
- jamiebean
- · Replies 1 ·
Pulling masses up a tilted plane with kinetic friction
- jamiebean
- · Replies 1 ·
What is meant by multiplication in physics?
- SSG-E
- · Replies 10 ·
Kleppner 7.10 — Using a gyroscope to measure latitude
- LCSphysicist
- · Replies 8 ·