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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Momentum equation and open channel flow
- fayan77
- · Replies 6 ·
How to reduce the integral equation for light deflection?
- Bishal Banjara
- · Replies 2 ·
Calculating total Coulomb force vector ?
- starstruck_
- · Replies 1 ·
Kinematics: find maximum height
- LifeMushroom
- · Replies 2 ·
Finding Force and work on a moving object
- Ltpenguin
- · Replies 18 ·
Electric field of concentric rings
- cookiemnstr510510
- · Replies 2 ·
Find the speed of the source (Doppler Effect)
- mastermind1
- · Replies 22 ·
Is Walter Lewins Loop Trick. Correct or False?
- spsch
- · Replies 18 ·
Dipole vector associated with charges
- cookiemnstr510510
- · Replies 18 ·
Y=cx[L−x], The value of the constant c for a perfect circle
- member 634857
- · Replies 10 ·
Relativistic ball bouncing between walls: events in different reference frames
- Bob Marsh
- · Replies 2 ·
Which bulb will glow brighter in a series and parallel circuit?
- Neha0555
- · Replies 5 ·
Finding current I using Kirchhoff's laws with multiple loops
- Barnt
- · Replies 2 ·
How do you work out the wavelegth (Franck-Hertz experiment)?
- birdnotbeing
- · Replies 1 ·
Time for rock to fall second half of cliff distance
- Carol-Anne
- · Replies 2 ·
How to Rank Charge Density of Conductive Spheres?
- isukatphysics69
- · Replies 61 ·
How to Round for Significant Figures in Scientific Calculations?
- sp3sp2sp
- · Replies 7 ·
Absolute uncertainty in R−2 with measured distance
- Jerry Z
- · Replies 9 ·
Calculating Time to Reach Ground from Rocket Launch
- Joakim 1
- · Replies 6 ·
Angle between radius and acceleration
- KristinaMr
- · Replies 4 ·
Plot the position of the particle x=Acosbt
- astroman707
- · Replies 3 ·
Kinematics: baseball toss with an angle provided
- MisterAvocadoMan
- · Replies 3 ·
Flux of a vector and parametric equation
- Xsnac
- · Replies 5 ·
What is the total charge enclosed
- Ashley1nOnly
- · Replies 6 ·
Displacement from a rotating Ferris wheel after 80°
- Rob123456789
- · Replies 14 ·
Does a rock launched at 50 m/s and 35° clear a 3.5 m wall at 10 m away?
- DracoMalfoy
- · Replies 5 ·
Magnetic field due to a straight wire and circular arc
- Victim
- · Replies 20 ·
Acceleration of a shot put ball
- Blocky970
- · Replies 3 ·
NEXT and FEXT voltage magnitudes for parallel PCB tracks
- Callum Plunkett
- · Replies 7 ·
The equivalent resistance for the resistors in this circuit?
- Islam Sabry
- · Replies 5 ·
Finding building height from ball thrown horizontally at 10 m/s
- DracoMalfoy
- · Replies 7 ·
How Is Work Calculated for a Gas and Balloon in Isothermal Expansion?
- Steve W
- · Replies 11 ·
Calculating Acceleration for a Car Stopping on a Dime: Kinematics Question Help
- DracoMalfoy
- · Replies 7 ·
Ball kicked at 20 m/s and 50°: finding maximum height
- DracoMalfoy
- · Replies 14 ·
Stone thrown from 40m bridge at 30°, find maximum height
- DracoMalfoy
- · Replies 4 ·
Why Is Magnification Undefined for a Point Object in Ray Diagrams?
- Krushnaraj Pandya
- · Replies 3 ·
Trooper chasing car at 24.0 m/s with 3.0 m/s² acceleration
- DracoMalfoy
- · Replies 9 ·
Is This Transmission System Exercise Correctly Solved?
- Guillem_dlc
- · Replies 6 ·
Inconsistency in a Velocity-Time Graph
- john-b
- · Replies 13 ·
Doppler shift for sonar reflecting off approaching whale
- betamu
- · Replies 2 ·
Elastic collision of equal masses: why does energy and momentum give two answers?
- A Physics Student
- · Replies 13 ·
Kinetic energy and momentum in an elastic collision
- Monsterboy
- · Replies 22 ·
How Do Friction Forces Act on a Ladder Leaning Against a Wall?
- minimario
- · Replies 13 ·
Projectile motion of a cannon ball versus time
- Archimedess
- · Replies 15 ·
Super Basic Collision Problem - Preparation for SR
- Ghost Repeater
- · Replies 10 ·
Finding the Flux of a Vector Field
- Civil_Disobedient
- · Replies 13 ·
Why Are Relative Velocities in Elastic Collisions Frame-Independent?
- gibberingmouther
- · Replies 4 ·
Using Macaulay's method of deflection on a cantilever beam
- Kyle Grayston
- · Replies 6 ·
'They' haven't considered centripetal acceleration
- baldbrain
- · Replies 24 ·
Rank charges in spheres (Physics 2)
- isukatphysics69
- · Replies 1 ·
Finding the Earth's magnetic field strength using a Galvanometer
- netknowledge
- · Replies 13 ·
What is the Correct Calculation for h/H When Ball A Collides with Ball B?
- Juliusz
- · Replies 3 ·
Calculating the distance traveled by a ball
- Joakim 1
- · Replies 9 ·
Using Mathematica to solve an ODE
- Ashley1nOnly
- · Replies 1 ·
Electric and Magnetic field acting on an electron
- Joseph Rolls
- · Replies 25 ·
Rabbit and turtle race with nap: finding speeds before and after break
- DracoMalfoy
- · Replies 10 ·
Uniformly charged ring on the axis
- SlyCedix
- · Replies 6 ·
Conservative force in spherical coordinates
- Felipe Lincoln
- · Replies 5 ·
Stimulated emission per second per atom?
- Philip Land
- · Replies 2 ·
1.3 kg mass slides 1.8 m down ramp and collides elastically
- teresalin2004
- · Replies 5 ·
Showing that 2π is unitless in the pendulum period equation
- DracoMalfoy
- · Replies 5 ·
Running / walking for half distance
- sp3sp2sp
- · Replies 3 ·
Rocket with two engines: finding total displacement
- DracoMalfoy
- · Replies 11 ·
Calculating Significant Figures for Regulation Soccer Field Area
- sp3sp2sp
- · Replies 7 ·
Thermodynamics problem - circular process
- solidbastard
- · Replies 13 ·
Average velocity for a bike ride with a break
- DracoMalfoy
- · Replies 9 ·
Average Acceleration Calculation for Ball Bouncing off a Tennis Racket
- DracoMalfoy
- · Replies 16 ·
Finding displacement when a wheel turns 100 times between two marks
- DracoMalfoy
- · Replies 8 ·
Radial Distribution Function (RDF) versus Radial component
- sgstudent
- · Replies 28 ·
Position from velocity time graph
- sp3sp2sp
- · Replies 4 ·
Ball thrown downward off a cliff: finding height
- DracoMalfoy
- · Replies 6 ·
Why Is the Angle 90 Degrees in Elastic Collisions of Equal Mass?
- Abu
- · Replies 10 ·
The height of a dielectric material between two coaxial pipes
- knowone
- · Replies 4 ·
Projectile Motion and acceleration of particle
- AkshayM
- · Replies 11 ·
Find the resistive constant in a critically damped system
- Incud2
- · Replies 14 ·
Angular speed calculation after an inelastic collision
- MathError
- · Replies 20 ·
Work done in adiabatic process vs work done in isothermal
- shihab-kol
- · Replies 2 ·
Proving equal times for rise and fall of a thrown ball
- oofllama
- · Replies 4 ·
Significant figures and rounding
- sp3sp2sp
- · Replies 6 ·
Calculate the impulse of tension
- Amitayas Banerjee
- · Replies 8 ·
Work done by a spring on an inclined plane with three blocks
- navneet9431
- · Replies 13 ·
Heat Capacity relations for 1st order phase transition
- Carbon123
- · Replies 1 ·
Minimum m/M ratio for two blocks to cross on a pulley system
- PhysicsBoi1908
- · Replies 34 ·
Mass going up an inclined plane with initial velocity Vo
- herardo
- · Replies 7 ·
Velocity from an elastic collision
- Millie Baker
- · Replies 4 ·
Problem about a rigid body pulled by a mass
- MathError
- · Replies 12 ·
Convert Julian Dates to Decimal
- grandpa2390
- · Replies 2 ·
Estimate of the greatest possible radius of a rocky planet
- kakaroth
- · Replies 3 ·
Elastic Collision in Two Reference Frames
- Bonnie
- · Replies 2 ·
Particles after an elastic collision
- Suyash Singh
- · Replies 2 ·
What will be the final velocity and direction of two colliding cars?
- M. M. Fahad Joy
- · Replies 7 ·
How Do You Calculate Vector Change in 2D Elastic Billiard Ball Collisions?
- MatusVeselka
- · Replies 4 ·
Free surface charges on concentric cylinders
- Philip Land
- · Replies 6 ·
Finding the Scalar Triple Product of Three Vectors
- Ashutosh
- · Replies 2 ·
Rotational mechanics string wrap around twig
- Priyanka88
- · Replies 26 ·
Finding Initial Velocity v0x for Particle with Non-Constant Acceleration
- klapklap___
- · Replies 2 ·
Magnitude of the electric field across cell membranes
- krbs
- · Replies 8 ·
Electric Field Force Exerted Vertically
- Civil_Disobedient
- · Replies 9 ·
Energy conservation in an alpha-scattering experiment
- Krushnaraj Pandya
- · Replies 5 ·
Does the gravitational potential energy affect the burning of two logs?
- prodi
- · Replies 2 ·