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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Electric field external to Conducting Hollow Sphere with charge inside
- curious_mind
- · Replies 23 ·
Lorentz force and induced electric field
- AmanWithoutAscarf
- · Replies 6 ·
Electric field in a cavity of a charged sphere using superposition
- tellmesomething
- · Replies 17 ·
Deriving a formula for KE (rolling + projection)
- foreverlostinclass
- · Replies 2 ·
Simple Static 3-Particle Model
- aasnrsd
- · Replies 2 ·
Why does lower air density at altitude increase max speed?
- sdfsfasdfasf
- · Replies 12 ·
Problem about non-inertial reference frame
- MatinSAR
- · Replies 8 ·
How to calculate the force exerted by the "tendon" on the "tibia" bone?
- Iwawa48
- · Replies 4 ·
Range of an object launched on a downward hill
- phantomvommand
- · Replies 12 ·
Resistance of three-dimensional objects
- Jan05
- · Replies 10 ·
How to understand typo in MIT OCW chapter on Poynting vector?
- zenterix
- · Replies 4 ·
What does having 3d symmetry 2d symmetry and 1d symmetry mean?
- tellmesomething
- · Replies 36 ·
Spaceship length contraction problem
- member 731016
- · Replies 4 ·
Measuring Acceleration on a Bike using Phyphox
- luciaalmiron
- · Replies 33 ·
How does an eddy current brake work exactly?
- zenterix
- · Replies 2 ·
what the relation between the amplitude magnitude and mass at resonance?
- kirito
- · Replies 5 ·
Ion moving through electric potential difference and magnetic field
- zenterix
- · Replies 8 ·
Direction of travel of a plane wave given direction of electric field
- zenterix
- · Replies 8 ·
How is centripetal force involved here? (charged mass sliding down a conducting hemisphere)
- tellmesomething
- · Replies 31 ·
Mathematical representation of a pulse on a rope
- zenterix
- · Replies 9 ·
Finding the flaw in treating a multi-loop circuit as independent series loops
- bmarc92
- · Replies 13 ·
Planet moving in elliptical orbit around a star
- songoku
- · Replies 13 ·
Why can we add impedances in series?
- zenterix
- · Replies 4 ·
How to understand the direction of tension in a charged closed ring?
- tellmesomething
- · Replies 11 ·
Internal energy of a gas and kinetic energy, "typical velocity"
- laser
- · Replies 5 ·
Damped harmonic oscillation
- NTesla
- · Replies 64 ·
Question on mirror and lens combinations
- BlueCerealBox
- · Replies 2 ·
Find the direction and the magnitude of Frictional force
- chwala
- · Replies 3 ·
Shortest distance along the shore and into the lake
- brotherbobby
- · Replies 6 ·
Magnitude of magnetic field at different points near a capacitor.
- zenterix
- · Replies 6 ·
How to find voltage across capacitor in RLC circuit?
- zenterix
- · Replies 3 ·
Vertical circular motion
- sdfsfasdfasf
- · Replies 8 ·
Can Geiger Counter Ticks be converted into particle/wave counts?
- kvidtr
- · Replies 12 ·
Why is the trajectory parabolic for constant acceleration?
- phantomvommand
- · Replies 16 ·
Find the electric field at a point in 3 dimensional space
- tellmesomething
- · Replies 50 ·
The electric potential inside a conducting sphere with charge Q
- j04015
- · Replies 11 ·
X and Y coordinates of an oscillating object on a spring.
- phantomvommand
- · Replies 3 ·
Simultaneous events separated by distance and time
- member 731016
- · Replies 5 ·
Finding speed of spaceship traveling to star ##a## light years away
- member 731016
- · Replies 8 ·
Stationary observer meaning in relativity problem
- member 731016
- · Replies 14 ·
Particle moving at speed ##bc## relative to laboratory frame
- member 731016
- · Replies 20 ·
Why Doesn't Time Dilation Affect Pendulum Observations on a Moving Train?
- member 731016
- · Replies 8 ·
Two cyclists ride between a pair of towns with and against the wind
- brotherbobby
- · Replies 17 ·
Universal gravitation’s problem -- Balancing gravitational forces from 2 masses
- Riccardo Finessi
- · Replies 3 ·
Prove that the field due to a circular arc is same as its bounded tangent at the centre of curvature
- tellmesomething
- · Replies 23 ·
Experimenting whether the diameter of a pot affects boiling time for water
- swnsy05
- · Replies 15 ·
How to obtain amplitude of current in parallel RLC circuit?
- zenterix
- · Replies 3 ·
Uniform Motion in 2D - A man chasing a bus
- brotherbobby
- · Replies 20 ·
Why is force linear near stable equilibrium in a potential?
- zenterix
- · Replies 2 ·
Ap physics 1 velocity center of mass question
- ldkdkdjdj
- · Replies 4 ·
Self-inductance of LC circuit given rate of capacitor discharge.
- zenterix
- · Replies 6 ·
Formula for the average EMF of generator
- songoku
- · Replies 6 ·
Calculation of current in driven series RLC circuit
- zenterix
- · Replies 8 ·
Magnetic energy density, self-inductance of coaxial cylindrical shells
- zenterix
- · Replies 10 ·
Why can't conservation laws alone determine post-impact velocities?
- bremenfallturm
- · Replies 7 ·
Find work given two conservative forces and a nonconservative force
- bremenfallturm
- · Replies 9 ·
Shadow velocities for two burning candles on opposite walls
- brotherbobby
- · Replies 3 ·
Atmospheric pressure and water pressure - Boyle's law
- laser
- · Replies 6 ·
Net force on a pulley system with unbalanced vertical forces
- sdfsfasdfasf
- · Replies 6 ·
A vertical U tube rotates about the vertical axis -- Find omega to cause this height offset
- Aurelius120
- · Replies 15 ·
IPHO classical mechanics: A mass falls on an exoplanet
- TanWu
- · Replies 2 ·
Electric field inside a hemispherical shell of charge
- Aurelius120
- · Replies 12 ·
Induction heat flux density induced by wire in a slab
- AntonAv
- · Replies 0 ·
Non-Uniform Magnetic Field Calculations
- Lachlan
- · Replies 9 ·
Power Radiated From a Copper Cube
- Randomized10
- · Replies 3 ·
Modelling a metal detector using eddy currents from Non-Destructive Testing
- Sh_lm
- · Replies 1 ·
Forces on Elliptical Current Carying Loop
- StoyanNikolov
- · Replies 10 ·
Friction Required for Billiard Ball to Roll without Slipping
- domephilis
- · Replies 60 ·
How to find the potential of a field that has regions of non-zero curl
- kated
- · Replies 3 ·
Sound wave diagram feedback
- newtonphysics
- · Replies 12 ·
Determine the velocity of the Slider
- Northbysouth
- · Replies 5 ·
Building a Marble Catapult
- bananamanz
- · Replies 3 ·
Gauge pressure due to a floating body
- brotherbobby
- · Replies 4 ·
Sign conventions for Kirchhoff's loop rule
- Meow12
- · Replies 7 ·
Resistance force changing the velocity of an object
- highschoolstudent454
- · Replies 8 ·
Heat loss from iron block cooling from 1500 K to 40 K
- walterminator
- · Replies 29 ·
Work done by power supply to maintain a constant current
- mymodded
- · Replies 0 ·
Unit vectors that change as a function of time
- tragtf
- · Replies 13 ·
Electric field at a point inside a non-uniformly charged sphere
- Necrolunatic
- · Replies 6 ·
Looking for data about different types of carbon fiber chemical properties
- GoldRemove9500
- · Replies 2 ·
Angular momentum conservation on a merry-go-round
- kirito
- · Replies 5 ·
Power dissipated over 1 cycle of a AC source-free RLC series circuit?
- testobesto
- · Replies 6 ·
Angular momentum for a bullet and a rod attached to a ceiling
- kirito
- · Replies 17 ·
Force Between 2 Coaxial Current-Carrying Loops
- KittyKinkle02
- · Replies 4 ·
How Long for a Beam of Light to Reach Earth?
- felizgu
- · Replies 21 ·
Particle confined in 3D box - quantum states
- greg997
- · Replies 5 ·
How to Calculate θ3 After Finding θ2 Using Snell's Law?
- betterscientist
- · Replies 9 ·
Why can't I add electric field vectors directly to find neutral points?
- tellmesomething
- · Replies 35 ·
Find number of microstates of combined system
- MatinSAR
- · Replies 22 ·
Experiment measuring the distance dependence of a suspended metal bolt from a magnet
- Sidsid
- · Replies 13 ·
Induction confusion for induced charge inside a metal conductor
- tellmesomething
- · Replies 23 ·
Why does 200 kg have 3 significant figures when the scale's least count is 100 kg?
- ysh123
- · Replies 3 ·
What would the slope of the force between 2 charged particles vs 1/r^2 give me?
- dannolul
- · Replies 1 ·
Gauss' law and the potential V (plane layer case)
- srnixo
- · Replies 7 ·
Water flowing out of a rotating vessel
- Bling Fizikst
- · Replies 30 ·
Using Kepler's laws to calculate elliptical planetary motion
- kirito
- · Replies 7 ·
Why does a box on a board on a frictionless surface accelerate together?
- alomari
- · Replies 5 ·
What is the unknown circuit element in RLC circuit given plot of V, I?
- zenterix
- · Replies 4 ·
Find at what rate the orbit radius will grow
- jaksa
- · Replies 30 ·
Initial velocity of rolling ball
- Siraaj
- · Replies 2 ·