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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(Conceptual Problem) Whether the ball can pass through the basket
- daphnelee-mh
- · Replies 26 ·
Conceptual Problem - Static Equilibrium
- daphnelee-mh
- · Replies 20 ·
What is a "Torsional Constant"?
- Gourab_chill
- · Replies 11 ·
What is the algebra concept used to derive time dilation formula?
- Woopa
- · Replies 4 ·
Coupling Efficiency of LED to Fiber Optic Guide
- BenPhysicist
- · Replies 3 ·
Mean Free Path of Air Molecules
- cwill53
- · Replies 5 ·
Torque on Left Foot of Man in Rotating System
- KDPhysics
- · Replies 12 ·
Electric field in a spherical shell
- curiosissimo
- · Replies 2 ·
Energy conservation of metallic balls
- A13235378
- · Replies 3 ·
Equations for the velocity of progressive travelling waves
- LCSphysicist
- · Replies 3 ·
System subject to a driving force
- LCSphysicist
- · Replies 13 ·
Measuring Blocks Equilibrium Displacements
- LCSphysicist
- · Replies 4 ·
Energy consumed for same work with different power?
- shivaprasadvh
- · Replies 20 ·
Understanding Momentum Conservation in Simple Harmonic Motion
- Prabs3257
- · Replies 2 ·
The location of the point with lowest kinetic energy
- songoku
- · Replies 9 ·
How to simplify this capacitor circuit?
- Frigus
- · Replies 21 ·
What is the correct expression for the total moment of inertia in this scenario?
- Nexus99
- · Replies 19 ·
(Check solution) Conceptual problem about the equilibrium of a rigid body
- daphnelee-mh
- · Replies 18 ·
Finding Trajectory of x & y in Kinematics
- Kitanov
- · Replies 7 ·
Calculating cosmic velocities using different frames of reference
- etotheipi
- · Replies 12 ·
Which direction should you aim to shoot a fish using a laser gun
- songoku
- · Replies 3 ·
Beats and superposition > doubt about the math
- LCSphysicist
- · Replies 12 ·
How to calculate R1 and R2 in this RC circuit
- derrickj585
- · Replies 3 ·
Double pendulum equations of motion using Newton's laws
- BayMax
- · Replies 8 ·
Experiment involving surface tension for water and alcohol
- sagigever
- · Replies 2 ·
(I.E. Irodov problem 1.72) Dynamics problem involving a pulley
- Adesh
- · Replies 28 ·
Analyzing Net Forces and Equations in a Driven Mass on a Circular Path System
- LCSphysicist
- · Replies 4 ·
Finding the Line of Motion of Two Particles
- tanaygupta2000
- · Replies 16 ·
(Conceptual- Planar Kinetics) How to maintain the position
- daphnelee-mh
- · Replies 1 ·
Help with elastic collisions please
- iwsc
- · Replies 12 ·
Oscillations with fluid and pendulum
- LCSphysicist
- · Replies 2 ·
Compression of a superconducting spring
- etotheipi
- · Replies 9 ·
Two masses, a rope and a spring
- Nexus99
- · Replies 9 ·
Analysing System of Equations: 2kx2 + kx1 = mx2 & 2kx1 + kx2 + kXocos(wt) = mx1
- LCSphysicist
- · Replies 1 ·
Lifting height of a box in a truck going over a speed bump
- jamesdhurai
- · Replies 12 ·
To find the Acceleration of a Pentagonal metallic plate
- Amitkumarr
- · Replies 6 ·
What is the Period of Oscillation for a Spring Cut to One-Third Its Length?
- LCSphysicist
- · Replies 3 ·
Mechanics Circular Motion Question
- girlwhoneedsmathhelp
- · Replies 4 ·
Minimum average value of position
- tanaygupta2000
- · Replies 3 ·
Devise two damping mechanisms for these coupled pendulums
- LCSphysicist
- · Replies 3 ·
Find an online stopwatch to record time to .01 or .001 sec
- MaryM
- · Replies 13 ·
Charged Conducting Sheet v. Charged Non-Conducting Sheet
- Taulant Sholla
- · Replies 9 ·
What's my mistake in this problem in dynamics involving pulleys?
- Adesh
- · Replies 35 ·
Adiabatic Process (Poisson’s equations)
- Taulant Sholla
- · Replies 4 ·
Simple pendulum subject to a driven force
- LCSphysicist
- · Replies 1 ·
Dropped object in a rotating frame
- etotheipi
- · Replies 3 ·
How can I improve my Experiment plan?
- RemotePhysics
- · Replies 12 ·
Struggling with Plane Motion Homework?
- AmazingDonuts
- · Replies 7 ·
Steel ball oscillating in a tube
- LCSphysicist
- · Replies 3 ·
Electrons impinging on a crystal
- tanaygupta2000
- · Replies 3 ·
Why did my analysis of critically damped motion lead to the wrong solution?
- LCSphysicist
- · Replies 2 ·
How much ice is needed to cool 31055.04J of water from 42°C to 0°C?
- cwill53
- · Replies 5 ·
Doppler effect - two airplanes flying towards each other
- Ondyman
- · Replies 8 ·
Conservation of relativistic momentum
- VVS2000
- · Replies 3 ·
What is zero error of a measuring instrument ?
- SSG-E
- · Replies 1 ·
Minimum force required to rotate a lamina
- PhysicsBoi1908
- · Replies 32 ·
Young's modulus and compression
- LCSphysicist
- · Replies 1 ·
Conservation of angular momentum and rotational kinetic energy
- Saptarshi Sarkar
- · Replies 2 ·
Relationship between radial distance and charge density of a capacitor
- Tony Hau
- · Replies 2 ·
Why Do mω²xa and 2kxa Both Act in Normal Modes Oscillations?
- LCSphysicist
- · Replies 2 ·
Minimum distance between balls connected by rods
- etotheipi
- · Replies 9 ·
Derivation of Lorentz Time Transformation
- Eipi
- · Replies 3 ·
Ball rolling in a magnetic field
- etotheipi
- · Replies 2 ·
Require help with angular velocity and people flying off the planet
- RemotePhysics
- · Replies 26 ·
An error made in a kinematics question about a spring launcher?
- aspodkfpo
- · Replies 16 ·
How to calc the period of this mass spring system?
- LCSphysicist
- · Replies 2 ·
Resultant field at the center of two semicircular current arcs
- tanaygupta2000
- · Replies 8 ·
Trouble with Static Equilibrium
- rtareen
- · Replies 5 ·
Confusion on the distribution of charge
- Gourab_chill
- · Replies 7 ·
Orbital speed variation as a planet orbits the Sun
- tempack
- · Replies 5 ·
Choosing Limits of Integration for Velocity Calculation
- fmiren
- · Replies 5 ·
Finding Velocity of Car Slowing Down: v_0-c*(t-t_1)^2/2
- fmiren
- · Replies 3 ·
How Does Resolving Angular Velocity into Components Affect Its Magnitude?
- aspodkfpo
- · Replies 27 ·
David Morin classical mechanics Problem 2.6: Disk held up by a massless string
- John100861
- · Replies 5 ·
To measure the diameter of a sphere using a screw gauge
- Amitkumarr
- · Replies 4 ·
Why is my solution to finding the spring constant incorrect?
- LCSphysicist
- · Replies 3 ·
Conservation of energy problem: Two masses, a pulley and an incline
- Tassandro
- · Replies 3 ·
Cylinder inside a cylindrical track
- Nexus99
- · Replies 11 ·
Maximum height a block reaches after separating from a curved moving ramp
- ItsukaKitto
- · Replies 8 ·
Rotating rod colliding with ball: find angular velocity, required mass, and impulse
- Nexus99
- · Replies 13 ·
Modelling an interation between two protons
- kaspis245
- · Replies 7 ·
Apparent weight of a body with upward acceleration
- TH02
- · Replies 22 ·
What is the relationship between force, acceleration, and mass in a lift?
- TH02
- · Replies 16 ·
Where Did the Young's Double Slit Experiment Calculation Go Wrong?
- tanaygupta2000
- · Replies 8 ·
Graphical Analysis of damped oscillator
- LCSphysicist
- · Replies 1 ·
Calculate the density of an object by the amount of displaced mass in water
- sagigever
- · Replies 7 ·
Electrostatic force between a Half Cylinder and a Plate
- Terry Bing
- · Replies 10 ·
Mechanics- Conservation of energy
- AlonZ
- · Replies 11 ·
Futher Mechanics: Circular Motion of a Car Going Around a Banked Turn
- RemotePhysics
- · Replies 7 ·
Confused as to where I begin to solve this circuit branch problem
- naftacher
- · Replies 5 ·
How does humidity affect air cooling?
- StoningTree
- · Replies 11 ·
Calculating the energy created by a bike pump that feeds a turbine
- rufusbufus
- · Replies 2 ·
To find the relative velocity of the wind as seen from a car
- gnits
- · Replies 1 ·
Mechanics: Angular Velocity Vector Questions
- girlwhoneedsmathhelp
- · Replies 6 ·
Is Gravity the only force doing work on a roller coaster cart?
- gazeem
- · Replies 8 ·
Understanding Feynman's Discussion of the Parallel Axis Theorem
- bryanso
- · Replies 2 ·
Minimum Force of 86N to Move Two Blocks
- bsvh
- · Replies 6 ·
The Brachistochrone Problem: cycloid curve
- physicsbeginnerss
- · Replies 3 ·
An interesting coupled oscillators problem (multiple springs and masses)
- mliempi2018
- · Replies 6 ·
How Far Does Ultrasound Travel in 0.2 Seconds?
- Aaraska_
- · Replies 1 ·