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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Plane ride relative motion problem
- clydefrog
- · Replies 3 ·
Work done by a uniform Ring of Charge (due tomorrow
- Melo out
- · Replies 3 ·
Object Acceleration with Vertical Forces: Rising or Descending?
- paperboy221
- · Replies 9 ·
A fixed charge at origin and a moving charge repelled
- Travkid
- · Replies 10 ·
Why kinetic energy loss doesn't change momentum in inelastic collisions
- MBBphys
- · Replies 1 ·
Identifying Newtonian force pairs
- MBBphys
- · Replies 5 ·
Energy of scattering photon and emitted electron
- gruba
- · Replies 1 ·
Minimum force to make box slide down slope
- heartshapedbox
- · Replies 2 ·
What Factors Affect the Impulse in a Bungee Jump?
- ZCV99
- · Replies 8 ·
Field of variable charge distribution over all space
- BenR
- · Replies 3 ·
Power Consumption and Entropy Generation
- gloppypop
- · Replies 3 ·
Find the magnitude and direction of vectorA - vector B?
- bigcookie
- · Replies 2 ·
Pulley + spring balance problem.
- Lexadis
- · Replies 6 ·
Why the time is the quarter of a period?
- zade70
- · Replies 2 ·
Bragg's Law (X-Ray Analytical Methods)
- Kelly Green
- · Replies 2 ·
Acceleration of a free-falling object using Newton's second law
- Frankenstein19
- · Replies 1 ·
Frictional force on an inclined plane
- Janiceleong26
- · Replies 24 ·
Why does electron capture create a neutron if the nucleus has too many?
- Drizzy
- · Replies 4 ·
Do Different Volumes of Helium Affect Molecular Speed in Balloons?
- Vibhor
- · Replies 24 ·
Snell's Law: Parallel Polarization Derivation
- Brianrofl
- · Replies 1 ·
Rocket at 0.6c sends signal back to Earth using time dilation
- cosmos42
- · Replies 2 ·
How to specify the normal force for this example
- Chris Class
- · Replies 1 ·
How do I calculate the equivalent inductance in a circuit with diagonal wiring?
- Marcin H
- · Replies 25 ·
Thermodynamic properties - Isochronic process - First law
- Kicior94
- · Replies 3 ·
Why is the oscillator in phase with the driver when driving frequency is low?
- Daniel Wqw
- · Replies 1 ·
Collision Investigation Problem (2-D Linear Momentum, etc.)
- Gin-Su
- · Replies 9 ·
What is the radius of the orbit of an electron
- henrco
- · Replies 6 ·
Does the bullet reach its target?
- cosmos42
- · Replies 1 ·
How can you tell when temperature decreases after friction stops?
- James81118
- · Replies 4 ·
Projectile Motion in an Electric field
- Elvis 123456789
- · Replies 8 ·
Conservation of momentum (relative speed)
- weirdlycool
- · Replies 4 ·
Can't figure out solution -- Space probe with engine thrust vectors
- Ben5386
- · Replies 22 ·
Angle of electric field line heading to infinity
- bsvh
- · Replies 1 ·
Velocity of a muon if observed travel distance is 800 m?
- cosmos42
- · Replies 2 ·
How Do You Prove the Law of Conservation of Momentum in Collisions?
- ally baker
- · Replies 10 ·
What is the single displacement needed for an expert golfer to make the hole?
- Monis
- · Replies 6 ·
Acceleration When an Object is Slowing
- Balsam
- · Replies 2 ·
Physics Centripetal Force problem?
- Brij Patel
- · Replies 5 ·
How Can Wind Tunnel Data Collection Enhance Your A2 Physics Coursework?
- fixty
- · Replies 1 ·
How Does the Energy-Momentum Relation Visualize for a Propagating Wave Function?
- nmsurobert
- · Replies 7 ·
Finding the volume of a floating rubber ball from its buoyancy
- David M
- · Replies 1 ·
Work that must be done to charge a spherical shell
- ElPimiento
- · Replies 6 ·
Potential Energy function for this system
- FruitNinja
- · Replies 16 ·
Conservation of momentum in an *open* system
- Thomas Walsh
- · Replies 12 ·
Conservation of energy interpretation of percentage conserved
- Dousin12
- · Replies 20 ·
Finding expectation values for given operators
- phys-student
- · Replies 5 ·
Kirchoff's Loop Rule Involving 2 Resistors and a Capacitor
- Niall Kennedy
- · Replies 4 ·
What is the maximum distance for a receiver to pick up a 12.5-MHz signal?
- kent davidge
- · Replies 13 ·
Calculating Angle Between Ecliptic and Horizon for Observer at 18 Degrees North
- Frank Einstein
- · Replies 4 ·
What is the electric field on a thin nonconducting shell
- henrco
- · Replies 3 ·
Thermodynamics problem involving piston and spring
- Titan97
- · Replies 40 ·
How to Find Force of Friction and Acceleration?
- Thomas10
- · Replies 3 ·
How to derive formula for nucleus decay using this equation?
- Gwyndolin
- · Replies 1 ·
Calculate terminal velocity when given cross sectional area
- Tatortotts
- · Replies 6 ·
The Electric Potential Equation
- meaghan
- · Replies 1 ·
Ball in accelerating tank with fluid
- Epiclightning
- · Replies 2 ·
When will the two trains collide?
- Rebecca Berger
- · Replies 4 ·
Archived Partial Derivatives and Constant Variables in Thermodynamics
- Jalo
- · Replies 1 ·
Is d(v2) the Best Form for Finding the Derivative for Energy?
- Dousin12
- · Replies 3 ·
Capacitance in a Complicated Mixed Circuit
- brinstar
- · Replies 19 ·
Determining resistance for unknown circuit
- Brian T
- · Replies 8 ·
What is the total mass of an O atom?
- maNoFchangE
- · Replies 7 ·
Archived Quantum Mechanics Question - Work function and h
- AKG
- · Replies 1 ·
Why is acceleration negative when velocity is positive?
- Frankenstein19
- · Replies 4 ·
Sea level rise from thermal expansion of ocean water
- dakota224
- · Replies 13 ·
Calculating Capacitance in a Mixed Circuit?
- brinstar
- · Replies 9 ·
What is the wavelength of an electron of 5eV energy?
- ldc1
- · Replies 1 ·
Descend Speed After Dropping Glasses: 9.8 m/s
- derpeedoo
- · Replies 4 ·
Change in density due to thermal expansion
- empty_set
- · Replies 5 ·
Intensity at offset position in two-slit interference pattern
- toesockshoe
- · Replies 1 ·
What is the magnitude of the net charge enclosed by surface?
- YeetForTheOneTime
- · Replies 1 ·
Quick Relative Velocity question
- CyberneticTitan
- · Replies 1 ·
What Force Does Air Exert on a Parachutist?
- JonnyG
- · Replies 3 ·
Compute work in Carnot Refrigerator
- duran9987
- · Replies 3 ·
Electric charge is distributed inside a nonconducting sphere
- YamiBustamante
- · Replies 8 ·
I don't understand why velocity is positive here?
- Frankenstein19
- · Replies 1 ·
Finding number of rotations till arm breaks (circular motion)
- Micah
- · Replies 1 ·
Solve 2D Elastic Collision Homework Statement
- Taylor T
- · Replies 5 ·
Minimum Period of Oscillation Disk
- Airp
- · Replies 2 ·
Electron reflection at potential barrier with 100 eV and -50V tubes
- Incand
- · Replies 2 ·
Gauss' Law - find magnitude of the electric field
- NickPA
- · Replies 6 ·
Finding velocity, time, and distance
- oliampian
- · Replies 4 ·
This formula is applicable for a point charge distribution.
- Paul Hurley
- · Replies 1 ·
Amplitude at the point of interference
- JohnLCC517
- · Replies 1 ·
Finding pupil diameter from pixel resolution limit
- toesockshoe
- · Replies 10 ·
Wave speed on a string of non-uniform linear mass density
- JohnLCC517
- · Replies 1 ·
Archived Convex and plane mirrors 28cm apart with object midway between
- Hyperreality
- · Replies 1 ·
Initial velocity of Philae bouncing off comet 67P
- Maxie
- · Replies 17 ·
Collision of Objects Dropped from Different Heights with Spring Compression
- teme92
- · Replies 7 ·
Deriving the Wave Equation from Laplacian and Partial Derivatives
- nmsurobert
- · Replies 1 ·
Cart pushed by two adults: what angle for F1 to move in x-direction?
- reminiscent
- · Replies 21 ·
Equivalent Capacitance and Voltage Across
- Marcin H
- · Replies 19 ·
How do I find the average value of a waveform?
- Marcin H
- · Replies 11 ·
Find the moment of inertia of this disk
- 234jazzy2
- · Replies 2 ·
Thermodynamics pure substances problem
- hazzz
- · Replies 10 ·
What is the speed of sound and time period of oscillating particles?
- PrakashPrasad
- · Replies 5 ·
Why Doesn't Superposition Apply to Gauss's Law for Parallel Plates?
- hitemup
- · Replies 13 ·
Power Output of Radiation from a Solenoid with Linearly Decreasing Current
- Jaakko
- · Replies 1 ·
Archived Finding the electric field between two lines of charges using Gauss Law
- Jazita
- · Replies 1 ·
Archived Period, amplitude, maximum speed, and total energy
- aligass2004
- · Replies 1 ·