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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Force to apply to a loop moving away from a current-carrying wire
- lorenz0
- · Replies 4 ·
Potential vector of a oscilating dipole:
- LCSphysicist
- · Replies 2 ·
What are the independent and dependent variables for the coin tipping plank experiment?
- uniquegirl
- · Replies 6 ·
Calculating the point where potential V = 0 (due to 2 charges)
- link223
- · Replies 2 ·
Average force from car crash with seat belt and steering wheel
- xxphysics
- · Replies 14 ·
Calculate the circumference/diameter in this relativistic problem
- LCSphysicist
- · Replies 1 ·
Find magnetic field at center of rotating sphere
- Jaccobtw
- · Replies 9 ·
Significant digits rule when determining radius from diameter
- vcsharp2003
- · Replies 6 ·
An olympic long jumper question
- Purp1eM0nsta
- · Replies 3 ·
Benefits of yoga
- XinyanWang
- · Replies 10 ·
Drop height of a magnet vs. induced EMF in a solenoid
- billyt_
- · Replies 41 ·
Work done by gas expanding into a cylinder+piston system
- LCSphysicist
- · Replies 3 ·
How Do Normal Modes of Oscillation Relate to Forces on Masses?
- Jack-Dylan96
- · Replies 10 ·
Solving Equation to Analyze Steady State Current
- lorenz0
- · Replies 7 ·
Which Star Does the Moon Occult on December 23-24, 2015?
- guv
- · Replies 2 ·
Find magnetic dipole moment of coiled wire
- Jimbob999
- · Replies 10 ·
Conservation of Energy in Trampoline Bounce
- ManfredArcane
- · Replies 20 ·
Gymnastics max torque on the High Bar
- knapklara
- · Replies 11 ·
Finding equilibrium temperature when there are phase changes
- lorenz0
- · Replies 2 ·
2 Cords affixed at different points are wrapped on a disc
- Father_Ing
- · Replies 2 ·
Potential difference metallic sphere
- Guillem_dlc
- · Replies 7 ·
Finding tension as a function of distance from the center of rotation
- vparam
- · Replies 23 ·
Why is angle ACP 90° for the shortest path on a cone?
- Rikudo
- · Replies 28 ·
How can we model a rolling truck on an incline using rotational motion analysis?
- vcsharp2003
- · Replies 24 ·
Understanding Part (b) of a Charge Distribution Problem
- L_ucifer
- · Replies 9 ·
Finding the velocity at the top of a loop
- williampire
- · Replies 9 ·
What is the Relationship Between Force and Spring Constant?
- Perander
- · Replies 14 ·
Potential difference of an electric circuit
- Guillem_dlc
- · Replies 5 ·
Normal modes: Spring and pendulum
- LCSphysicist
- · Replies 1 ·
How do you maximize work output from a heat engine?
- so_gr_lo
- · Replies 10 ·
Horizontal impulse on a ball at rest on a plane (with friction)
- FranzDiCoccio
- · Replies 14 ·
Calculating the Time-Average Intensity of 3 Slits
- maxim07
- · Replies 4 ·
Finding time for current to reach 35 mA in RL circuit
- lorenz0
- · Replies 3 ·
Calculating the Electric field for a ring
- link223
- · Replies 3 ·
Photon Arrival Rate, Chapter 1.5 from Computer Graphics by Folly
- CGandC
- · Replies 15 ·
Flux of constant magnetic field through lateral surface of cylinder
- lorenz0
- · Replies 7 ·
Rectangular Box with two non zero potential faces
- guyvsdcsniper
- · Replies 4 ·
Finding speed of a falling brick using distance and the acceleration of gravity
- vytrx
- · Replies 5 ·
Uncharged conductor inside an insulating shell
- guyvsdcsniper
- · Replies 21 ·
Voltage Drop in Parallel Receptacle Wiring
- annamal
- · Replies 9 ·
Heavy mass vs light mass in circular motion
- technotux
- · Replies 4 ·
A Stone connected to chain is thrown vertically
- Rikudo
- · Replies 30 ·
From circular orbit to elliptical orbit
- physicsnmathstudent0
- · Replies 3 ·
Linking moments with friction force for a sliding block
- ols500
- · Replies 27 ·
Escape velocity and tangential impulse
- christianwos
- · Replies 14 ·
Accelerating wedge with a block at rest on it
- rudransh verma
- · Replies 43 ·
Momentum - Impulse collision to find initial speeds and directions
- dahoom102
- · Replies 6 ·
How do I calculate the escape velocity of the solar system?
- purpleperson1717
- · Replies 11 ·
Resistor value given capacitance and EMF with a resistance R after 3ms
- kalm1307
- · Replies 9 ·
Launching a Projectile with Air Resistance
- xtraboi
- · Replies 13 ·
Probability/entropy of spontaneous event
- so_gr_lo
- · Replies 7 ·
What are the key considerations for designing an Inductrack highway system?
- marko1
- · Replies 10 ·
How Does Velocity Impact a Skier's Magnitude and Movement?
- Svelte1
- · Replies 10 ·
Quantum Tunneling to an infinite wall
- maguss182
- · Replies 8 ·
Calculating Electric Potential and Energy in a System of Spherical Conductors
- lorenz0
- · Replies 4 ·
Why does a scale read 119 lb for 118.5 to 119.5 lb, not 118 to 120 lb?
- mopit_011
- · Replies 30 ·
Why isn't the force between two parallel dipoles radial?
- LCSphysicist
- · Replies 19 ·
[Intro QM] Verification requested on possible solution for a question
- warhammer
- · Replies 7 ·
Conducting cable surrounded by two cylindrical shells
- lorenz0
- · Replies 7 ·
Problem about electric potential
- MatinSAR
- · Replies 10 ·
Period of simple pendulum on an inclined moving platform
- songoku
- · Replies 20 ·
Angular frequency of a mass performing SHM
- songoku
- · Replies 15 ·
Momentum and Impulse Problem with a Ball bouncing off a Wall
- GiantGoose
- · Replies 9 ·
Entropy due to this irreversible process
- Simobartz
- · Replies 1 ·
Calculating Velocity from Conservation of Momentum: A Science Tutorial
- AndrewMorris
- · Replies 4 ·
Engineering Practice Problem for a Pin-Connected Frame
- engineerintraining
- · Replies 3 ·
How Do Spring Force, Static Friction, and Normal Force Interact?
- yesmale4
- · Replies 7 ·
How do you know if the focal length is positive or negative?
- bluesteels
- · Replies 5 ·
Gaussian cylinder enclosing cylinder of charge
- annamal
- · Replies 22 ·
Will the spring stretch or compress?
- yesmale4
- · Replies 5 ·
How do I find that the tensions from both sides are equal?
- link223
- · Replies 13 ·
Bernoulli equation / fluid flow / finding height
- Polarbear10
- · Replies 6 ·
Period of spring-mass system and a pendulum inside a lift
- songoku
- · Replies 6 ·
Angular momentum / conservation of momentum questions
- qsduahuw
- · Replies 23 ·
Forces acting on a Walking Beam (oil rig pump) from a pivot pin
- link223
- · Replies 6 ·
Surface Current and Electric Field
- BnayaMeir
- · Replies 1 ·
Electric field from a positive and negative plate pair
- annamal
- · Replies 2 ·
Is my impulse vector diagram correct?
- songoku
- · Replies 7 ·
How far will a piece from an explosive projectile fly?
- songoku
- · Replies 43 ·
Weight of object below the Earth's surface
- rrosa522
- · Replies 15 ·
Calculating moments about a point and counting constraint forces
- Yossi33
- · Replies 7 ·
How can an event which has length and time have L = 0?
- rgtr
- · Replies 13 ·
Sphere and electric field of infinite plate
- annamal
- · Replies 14 ·
What is the maximum stretch of the bungee and will the mass hit the ground?
- purpleperson1717
- · Replies 12 ·
Tension between two rigid bodies
- Rikudo
- · Replies 8 ·
Why does pressure increase with depth in fluids?
- jonny997
- · Replies 14 ·
How Do You Apply Zonal Spherical Harmonics in Electromagnetism Problems?
- Zaitul Hidayat
- · Replies 5 ·
How is the amplitude of a wave related to the slit width?
- Faiq
- · Replies 8 ·
Find the electric field everywhere resulting from two infinite planes
- annamal
- · Replies 4 ·
Proton Deflection when traversing a a Parallel-plate Capacitor
- Colton1995
- · Replies 2 ·
Maximum Deflection Angle In Elastic Collision
- vibha_ganji
- · Replies 5 ·
Tetherball: find tension and angle when ball completes 2 circles per second
- ybgl
- · Replies 5 ·
Time falling on slopes of same length
- feynman1
- · Replies 8 ·
Calculate the charge on an oil droplet
- Shaye
- · Replies 4 ·
Normalizing a piecewise wavefunction with boundary conditions
- drop_out_kid
- · Replies 9 ·
Grade 11 Motion Question -- An object is pushed from rest across a sheet of ice
- aatari
- · Replies 8 ·
Why does only one boundary condition fit for a finite energy well with E < 0?
- drop_out_kid
- · Replies 5 ·
Why does a free particle in an infinite well have uncertainty bigger than h/2 ?
- drop_out_kid
- · Replies 4 ·
Σ free on two dielectric spherical surfaces
- guyvsdcsniper
- · Replies 2 ·
Energy change under point transformation
- LCSphysicist
- · Replies 1 ·