Introductory Physics Homework Help Forum

Post thread
Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
Spherical capacitor RC system -- determine steady state charges
  • palaphys
  • · Replies 6 ·
Replies
6
Acceleration of a wedge: What forces act on the wedge?
  • teodora
  • · Replies 4 ·
Replies
4
What Determines the Minimum Mass of Block B for Movement on an Inclined Plane?
  • tellmesomething
  • · Replies 22 ·
Replies
22
Why is the derivative of the potential at a surface assumed to be continuous even though there is surface charge?
  • per persson
  • · Replies 1 ·
Replies
1
Current through shorted branch -- clarification
  • palaphys
  • · Replies 9 ·
Replies
9
Different way to find center of mass of Hollow hemisphere
  • BlackUniverse
  • · Replies 6 ·
Replies
6
Calculation of Tensile Forces in Piston-Type Water-Lifting Devices at Elevated Locations
  • vdance
  • · Replies 15 ·
Replies
15
Errors and significant figures
  • Zayan
  • · Replies 25 ·
Replies
25
Collision of a bullet on a rod-string system: query
  • palaphys
  • · Replies 71 ·
3
Replies
71
Explain this asphalt sheen
  • .Scott
  • · Replies 10 ·
Replies
10
Can terminal velocity be determined from the information given?
  • feynmanshomeboy
  • · Replies 7 ·
Replies
7
A cylinder connected to a hanging mass
  • Robeurer
  • · Replies 21 ·
Replies
21
Compton shift problem
  • Brian_D
  • · Replies 9 ·
Replies
9
Atwood's with a cylinder - Rotational Motion
  • Null_Void
  • · Replies 13 ·
Replies
13
Help me to clear my doubt about a problem of Classical Mechanics (Car and Bicycle)
  • Ishfa
  • · Replies 6 ·
Replies
6
Tension in a string connecting two blocks having equal and opposite velocities
  • mrpurpletoes
  • · Replies 21 ·
Replies
21
Physics Problem on Tension in Water
  • vdance
  • · Replies 19 ·
Replies
19
Physics Extended Essay about Gauss' law and/or Lorentz force
  • VeryNice
  • · Replies 4 ·
Replies
4
Toboggan on circular arcs
  • Physical_Fire
  • · Replies 12 ·
Replies
12
Will Y-Direction Motion Cease with X-Direction Acceleration Only?
  • aronclark1017
  • · Replies 30 ·
2
Replies
30
Projectile problem: A block released from a balloon
  • AnishaTabassum
  • · Replies 5 ·
Replies
5
Help on reflection of a wave from fixed end without transmission
  • mrpurpletoes
  • · Replies 30 ·
2
Replies
30
Electric field due to arc shaped thin rod
  • microdosemishief
  • · Replies 13 ·
Replies
13
Angular Momentum- Conserved or not?
  • palaphys
  • · Replies 17 ·
Replies
17
Irodov- 1.123- Simple conceptual question with two masses connected by a spring
  • palaphys
  • · Replies 20 ·
Replies
20
Vertical Circular motion- A confusing question
  • palaphys
  • · Replies 29 ·
Replies
29
Most probable velocity from Maxwell-Boltzmann distribution
  • TensorCalculus
  • · Replies 5 ·
Replies
5
Reconcile poundforce w/slug and lbmass
  • Roady
  • · Replies 25 ·
Replies
25
Not a typical RL circuit...
  • rickyw2777
  • · Replies 4 ·
Replies
4
Problem with pulleys - two fixed and one movable
  • brotherbobby
  • · Replies 22 ·
Replies
22
Is this an oversimplification? (treating a lens as a set of prisms)
  • Dark85
  • · Replies 10 ·
Replies
10
Change in Displacement Formulation
  • microdosemishief
  • · Replies 6 ·
Replies
6
Definition of pound force
  • Roady
  • · Replies 3 ·
Replies
3
Current through an inductor as a function of time
  • palaphys
  • · Replies 10 ·
Replies
10
A hanging ring carrying current in a uniform magnetic field
  • palaphys
  • · Replies 10 ·
Replies
10
Flux through a cylindrical surface enclosing part of a sphere
  • palaphys
  • · Replies 9 ·
Replies
9
Specific heat capacity and latent heat
  • waltssillyhat
  • · Replies 2 ·
Replies
2
Calculating the Planck Length
  • Dark85
  • · Replies 3 ·
Replies
3
Can a dipole be modeled as a point charge?
  • Electrodude
  • · Replies 10 ·
Replies
10
Calculate the radius of gyration for a plane figure
  • shishykish
  • · Replies 6 ·
Replies
6
Dynamics of Circular Motion
  • JuanMa2409
  • · Replies 12 ·
Replies
12
Calculating acceleration of a prism and block connected to a wall through a rope and pulley
  • Patrick Herp
  • · Replies 4 ·
Replies
4
Block drifts off between two moving planes through friction
  • kekpillangok
  • · Replies 21 ·
Replies
21
The sign of the change in potential
  • rickyw2777
  • · Replies 7 ·
Replies
7
How come violet, with the shortest wavelength, is refracted the most?
  • plaguedbyfoibles
  • · Replies 3 ·
Replies
3
Calculating the time needed until a known velocity for a vehicle with friction as a function of velocity
  • Patrick Herp
  • · Replies 3 ·
Replies
3
Question About homework on Coulomb's Law
  • rickyw2777
  • · Replies 8 ·
Replies
8
Variable Mass system : Sand falling into a Freight car
  • Su6had1p
  • · Replies 6 ·
Replies
6
Spherical conducting shell enclosing a non-conducting core
  • hmparticle9
  • · Replies 5 ·
Replies
5
Concentric conducting cylinders
  • hmparticle9
  • · Replies 7 ·
Replies
7
Slight Confusion in Introductory Mechanics (Dynamics Problem)
  • Lunar Manatee
  • · Replies 15 ·
Replies
15
The flux through a cylinder from a charge at the origin
  • hmparticle9
  • · Replies 5 ·
Replies
5
Writing a vector parallel and normal to a unit vector ##\hat n##
  • brotherbobby
  • · Replies 26 ·
Replies
26
Equilibrium Position of a Hanging Candy Cane
  • TensorCalculus
  • · Replies 17 ·
Replies
17
An interesting GCSE question: Why are electric lamps connected in parallel in house wiring?
  • TensorCalculus
  • · Replies 14 ·
Replies
14
LC oscillations - two capacitors and an inductor
  • palaphys
  • · Replies 15 ·
Replies
15
Angular motion of a car wheel traveling at certain speed
  • inuka00123
  • · Replies 12 ·
Replies
12
5 charges within a square boundary
  • hmparticle9
  • · Replies 7 ·
Replies
7
Newton's law of gravitation, energy and centre of mass question
  • mrpurpletoes
  • · Replies 6 ·
Replies
6
Acceleration of an Electron in a Uniform Electric Field
  • jnuz73hbn
  • · Replies 2 ·
Replies
2
Two charged spheres connected to walls by two springs
  • hmparticle9
  • · Replies 7 ·
Replies
7
Measurement technology textbook problems
  • NotFivehead
  • · Replies 1 ·
Replies
1
Ice Core Density Problem (Inspired by NEEM)
  • jnuz73hbn
  • · Replies 6 ·
Replies
6
Finding the charge on pith balls
  • hmparticle9
  • · Replies 9 ·
Replies
9
2D rigid body mechanics: force applied on sliding cart
  • bilboDan
  • · Replies 14 ·
Replies
14
Cutting the Dose Rate in half with shielding
  • syllll_213
  • · Replies 5 ·
Replies
5
🔹RC Circuit with Series Capacitors — One Pre-Charged, One Uncharged
  • Uplakshya
  • · Replies 11 ·
Replies
11
Measurement technology textbook problems
  • NotFivehead
  • · Replies 2 ·
Replies
2
What is the Final Temperature When Mixing Water and Ice, Assuming All Ice Melts?
  • hmparticle9
  • · Replies 12 ·
Replies
12
Projectile motion with ##N## bounces on the ground
  • Meden Agan
  • · Replies 21 ·
Replies
21
How to calculate freezing time for a moist food by-product (75% water)
  • Duales
  • · Replies 6 ·
Replies
6
A lead bullet gets embedded in a lead block
  • hmparticle9
  • · Replies 17 ·
Replies
17
Can the braking force be significantly greater than the force acting on the brake structure?
  • Art_sh
  • · Replies 25 ·
Replies
25
Question on magnetism: Circular motion of charged particle in a Magnetic Field
  • physicals
  • · Replies 34 ·
2
Replies
34
A question about a wheel rolling without slipping while tied to a cube
  • glen21082000
  • · Replies 11 ·
Replies
11
Thermally insulated container with alternating series of walls
  • Meden Agan
  • · Replies 49 ·
2
Replies
49
Can somebody explain what is happening here? (sunlight refracting in Earth's atmosphere)
  • tellmesomething
  • · Replies 12 ·
Replies
12
An exploding cannon shell
  • brotherbobby
  • · Replies 4 ·
Replies
4
How to Calculate Amplitude Decrease in Damped Harmonic Motion After 10 Cycles?
  • Tryingtobecomeanengi
  • · Replies 3 ·
Replies
3
Minimum angular velocity of a point mass on a rotating rod
  • Rob2024
  • · Replies 5 ·
Replies
5
Roller coaster mock Lab Report
  • DelusionRemedy
  • · Replies 9 ·
Replies
9
Faraday's Law and magnetic flux
  • rickyw2777
  • · Replies 3 ·
Replies
3
Physics exercise: Pressure in this Fresh Water Tank
  • Vale Tum
  • · Replies 3 ·
Replies
3
Finding displacement from position time graph
  • syllll_213
  • · Replies 4 ·
Replies
4
Acceleration of beads on a ring
  • Bling Fizikst
  • · Replies 5 ·
Replies
5
Rope between inclines with maximum length of hanging middle portion
  • Meden Agan
  • · Replies 46 ·
2
Replies
46
What is the derivation of the second equation for area velocity?
  • Shreya
  • · Replies 3 ·
Replies
3
Find in terms of ##h## when ##P## comes instantaneously to rest
  • chwala
  • · Replies 36 ·
2
Replies
36
A stone is dropped from an ascending balloon...
  • tremain74
  • · Replies 10 ·
Replies
10
Any Edexcel A Level Physics Teachers Here - Paper 1 Q13?
  • Paulinio
  • · Replies 13 ·
Replies
13
Coulomb’s Law Problem: Electrostatic Forces Between Charges
  • nolife49
  • · Replies 6 ·
Replies
6
Calculating flux through a plane cutting two concentric cylinders
  • Zayan
  • · Replies 26 ·
Replies
26
Identical cones rotating while in contact with each other
  • Null_Void
  • · Replies 12 ·
Replies
12
Ford Nucleon -- Fission Powered Car Calculation
  • ninne
  • · Replies 3 ·
Replies
3
Collision between snooker balls
  • hmparticle9
  • · Replies 3 ·
Replies
3
Introductory Physics: Connection of Resistors ...
  • Lunar Manatee
  • · Replies 15 ·
Replies
15
Friction on a spinning wheel when it is dropped onto the ground
  • nedoX
  • · Replies 30 ·
2
Replies
30
Frequency to wavelength question (thermal Doppler broadening)
  • dartingeyes
  • · Replies 3 ·
Replies
3
Acceleration of a Block Sliding Down a Wedge
  • Bling Fizikst
  • · Replies 3 ·
Replies
3
Calculating velocity of a particle if distances are constant
  • anthraxiom
  • · Replies 11 ·
Replies
11