Introductory Physics Homework Help Forum

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Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
Toboggan on circular arcs
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Will Y-Direction Motion Cease with X-Direction Acceleration Only?
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Projectile problem: A block released from a balloon
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862
Help on reflection of a wave from fixed end without transmission
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Electric field due to arc shaped thin rod
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Angular Momentum- Conserved or not?
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17
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Irodov- 1.123- Simple conceptual question with two masses connected by a spring
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Vertical Circular motion- A confusing question
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29
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Most probable velocity from Maxwell-Boltzmann distribution
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5
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957
Reconcile poundforce w/slug and lbmass
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Not a typical RL circuit...
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4
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953
Problem with pulleys - two fixed and one movable
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Is this an oversimplification? (treating a lens as a set of prisms)
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965
Change in Displacement Formulation
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6
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909
Definition of pound force
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3
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783
Current through an inductor as a function of time
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A hanging ring carrying current in a uniform magnetic field
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10
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994
Flux through a cylindrical surface enclosing part of a sphere
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9
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2K
Specific heat capacity and latent heat
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2
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937
Calculating the Planck Length
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3
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988
Can a dipole be modeled as a point charge?
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1K
Calculate the radius of gyration for a plane figure
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6
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808
Dynamics of Circular Motion
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12
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Calculating acceleration of a prism and block connected to a wall through a rope and pulley
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4
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951
Block drifts off between two moving planes through friction
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21
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The sign of the change in potential
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7
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967
How come violet, with the shortest wavelength, is refracted the most?
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3
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775
Calculating the time needed until a known velocity for a vehicle with friction as a function of velocity
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3
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890
Question About homework on Coulomb's Law
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8
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Variable Mass system : Sand falling into a Freight car
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6
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949
Spherical conducting shell enclosing a non-conducting core
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5
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736
Concentric conducting cylinders
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7
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944
Slight Confusion in Introductory Mechanics (Dynamics Problem)
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15
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The flux through a cylinder from a charge at the origin
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5
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924
Writing a vector parallel and normal to a unit vector ##\hat n##
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26
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Equilibrium Position of a Hanging Candy Cane
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17
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An interesting GCSE question: Why are electric lamps connected in parallel in house wiring?
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14
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828
LC oscillations - two capacitors and an inductor
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15
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1K
Angular motion of a car wheel traveling at certain speed
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12
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5 charges within a square boundary
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7
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860
Newton's law of gravitation, energy and centre of mass question
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6
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794
Acceleration of an Electron in a Uniform Electric Field
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2
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731
Two charged spheres connected to walls by two springs
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7
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826
Measurement technology textbook problems
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798
Ice Core Density Problem (Inspired by NEEM)
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6
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750
Finding the charge on pith balls
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9
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967
2D rigid body mechanics: force applied on sliding cart
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14
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Cutting the Dose Rate in half with shielding
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5
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776
🔹RC Circuit with Series Capacitors — One Pre-Charged, One Uncharged
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Measurement technology textbook problems
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2
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720
What is the Final Temperature When Mixing Water and Ice, Assuming All Ice Melts?
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Projectile motion with ##N## bounces on the ground
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How to calculate freezing time for a moist food by-product (75% water)
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A lead bullet gets embedded in a lead block
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861
Can the braking force be significantly greater than the force acting on the brake structure?
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Question on magnetism: Circular motion of charged particle in a Magnetic Field
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A question about a wheel rolling without slipping while tied to a cube
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Thermally insulated container with alternating series of walls
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Can somebody explain what is happening here? (sunlight refracting in Earth's atmosphere)
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990
An exploding cannon shell
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4
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975
How to Calculate Amplitude Decrease in Damped Harmonic Motion After 10 Cycles?
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3
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Minimum angular velocity of a point mass on a rotating rod
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968
Roller coaster mock Lab Report
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9
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Faraday's Law and magnetic flux
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3
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850
Physics exercise: Pressure in this Fresh Water Tank
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3
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805
Finding displacement from position time graph
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4
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Acceleration of beads on a ring
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Rope between inclines with maximum length of hanging middle portion
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What is the derivation of the second equation for area velocity?
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Find in terms of ##h## when ##P## comes instantaneously to rest
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A stone is dropped from an ascending balloon...
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Any Edexcel A Level Physics Teachers Here - Paper 1 Q13?
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Coulomb’s Law Problem: Electrostatic Forces Between Charges
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Calculating flux through a plane cutting two concentric cylinders
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Identical cones rotating while in contact with each other
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Ford Nucleon -- Fission Powered Car Calculation
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Collision between snooker balls
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3
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980
Introductory Physics: Connection of Resistors ...
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Friction on a spinning wheel when it is dropped onto the ground
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Frequency to wavelength question (thermal Doppler broadening)
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975
Acceleration of a Block Sliding Down a Wedge
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Calculating velocity of a particle if distances are constant
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How to find motional emf w/o an equation for mag field?
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Calculating the voltage across capacitors and resistors with switches
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Find V-I characteristic for this circuit with ideal diode
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Purcell Electromagnetism p.301-303: "the longitudinal current I flows, in effect, on the cylinder itself"?
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Acceleration of the midpoint of a light rod
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Work Done in slowly pulling a thread
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Field of contact forces
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Determine the Thevenin equivalent circuit
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Angular Momentum Problem: Mouse walking on a rotating turntable
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Earthing of two parallel conducting plates
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Purcell 1.77 Electron jelly
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How can voltage between unlike charges decrease with proximity?
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Wave interference, "beats" problem
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Aerodynamics of a helicopter blade
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Which pairs of these diagrams represent equivalent circuits?
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I want to know if the sketch I've drawn of the catenary suits the exercise
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Trying to study for my exam but got stuck on exercise
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Direction and magnitude of electric field produced by current change
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