Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
Threads
Total distance traveled with calculus
- albertrichardf
- · Replies 4 ·
Calculating speed, when given total time it took, and the radius
- _emmakala
- · Replies 3 ·
Question about power and output power.
- vegetables102
- · Replies 3 ·
Time it takes to transmit signal to satellite (modern physics)
- salmayoussef
- · Replies 4 ·
Show that simple harmonic motion occurs
- Doobydoo913
- · Replies 14 ·
Is the Phase Constant in SHM Conceptually Significant?
- alingy1
- · Replies 1 ·
Determining the Direction of Current Flow in Parallel Wires
- jacksonwiley
- · Replies 5 ·
Steel ball bearing in a magnetic field
- piisexactly3
- · Replies 22 ·
Matching a graph to an experiment
- franceboy
- · Replies 7 ·
A question on Dimensional analysis
- Amio
- · Replies 8 ·
What is the net electric field at point P in this physics problem?
- Burger
- · Replies 3 ·
Cylinder attached to a block on an inclined plane, rotational dynamics
- jsrev
- · Replies 4 ·
Displacement and Velocity Question
- cosmictide
- · Replies 8 ·
Quinn and Ittner's (1963) superconductivity experiment
- beowulf.geata
- · Replies 2 ·
Estimating the Size of Sgr A*'s Emitting Region
- albega
- · Replies 3 ·
How can the wavelength of blue light be 750nm?
- FaroukYasser
- · Replies 2 ·
In Cube of resistances how to calculate current in one edge?
- agoogler
- · Replies 20 ·
Does a ball always bounce the same fraction of the previous height?
- Tizyo
- · Replies 9 ·
Effects of New Solid Sphere on Water Level
- gummybeargirl
- · Replies 1 ·
How Well Do You Understand Atwood Machine Pulleys?
- gummybeargirl
- · Replies 5 ·
Lab- Calculate Relative Uncertainty, How many sig figs?
- ChiralWaltz
- · Replies 1 ·
How Do You Calculate Angular Acceleration from Revolutions?
- gcombina
- · Replies 7 ·
Rearranging numbers changes answers?
- Lexadis
- · Replies 3 ·
Simple rotational period problem
- Bob_Dole
- · Replies 7 ·
Calculate Mass of Proton | 65 Characters
- influx
- · Replies 2 ·
Hard Mathematics-Physics Exercise
- TuongQuach
- · Replies 1 ·
What is the optimal speed for a tumble dryer to gently tumble clothes?
- BOAS
- · Replies 2 ·
Branching ratio of particle question
- RyanTG
- · Replies 1 ·
Can a change in units cancel out G/4π2 in Kepler's third law?
- physiks
- · Replies 5 ·
Force on winch to lift trailer ramp
- Mutaja
- · Replies 7 ·
Where does electric field go to zero?
- baby_1
- · Replies 11 ·
Forces and acceleration on frictionless table?
- syavian1019
- · Replies 8 ·
Electric Field with three negative point charges in a line
- kddc
- · Replies 2 ·
How to Calculate Wave Velocity in a Tuned Violin String
- Daltohn
- · Replies 2 ·
Gauss's Law: Cond. versus Non-cond. Sheets: Conflicting Results
- Ackbach
- · Replies 4 ·
Applying Kirchhoff's voltage law to circuit loops
- Jhenrique
- · Replies 12 ·
Classical mechanics - small movements around equilibrium
- skrat
- · Replies 10 ·
Simple harmonic motion (direction of acceleration)
- kelvin macks
- · Replies 2 ·
Efficiency of Objects Pushed Up a Ramp
- Emperor
- · Replies 5 ·
Moment of inertia of a suspended cylinder
- j_namtirach
- · Replies 5 ·
Device with transfer of KE-PE each cycle & losses
- Lightness
- · Replies 5 ·
Motion in a Circle: True/False/Less/Greater/Equal
- gummybeargirl
- · Replies 2 ·
Moment of Inertia of spherical masses
- gummybeargirl
- · Replies 2 ·
The Effect of Temperature on Buoyant Forces
- karamsoft
- · Replies 2 ·
Embarrassingly elementary physics question
- murrmac
- · Replies 17 ·
Why is using Newton's First Law failing me?
- Murtuza Tipu
- · Replies 3 ·
( P.19) Tangential Acceleration
- gcombina
- · Replies 6 ·
What is the Lowest Frequency for Maximum Loudness at Point P?
- Daltohn
- · Replies 2 ·
How Do You Calculate the Angle Between Two Vectors?
- Danatron
- · Replies 1 ·
Sliding time before a ball begins to roll on a horizontal surface
- NZBRU
- · Replies 3 ·
Orbital energy of object overcoming Moon's gravity
- salmayoussef
- · Replies 12 ·
Calculating Initial Speed of a Meteorite Based on Energy Transformations
- sabirkhan
- · Replies 11 ·
Resolving Vector in Arbitrary Basis: Proving Coefficients' Independence
- precise
- · Replies 14 ·
How do I calculate a Pendulums energy loss?
- Lightness
- · Replies 11 ·
Solve for Maximum Speed of a Car on a Circular Turn | Centripetal Force Problem
- BrainMan
- · Replies 2 ·
Phase difference of 2 points in a same graph
- kelvin macks
- · Replies 5 ·
The voltage across a voltmeter Olymp 09
- Entanglement
- · Replies 9 ·
Rotating motor dynamics: reactions on supports.
- roflmaoament
- · Replies 3 ·
A Problem in " Electric Potential "
- Ana Mido
- · Replies 4 ·
Why does the spring constant go down after a specific mass?
- boii
- · Replies 3 ·
Calculating Wavelength in Young's Interference Experiment
- elementozzy
- · Replies 4 ·
Calculating Asteroid Impact Speed
- spinnaker
- · Replies 8 ·
Two masses and spring oscillation
- Tanya Sharma
- · Replies 86 ·
Can the electric potential be negative ?
- Ana Mido
- · Replies 4 ·
Rocket Thrust, Acceleration, Velocity and Altitude
- Rookie
- · Replies 16 ·
Bug on a spinning record: radial acceleration at constant angular velocity
- BrainMan
- · Replies 12 ·
Resultant force when a body is accelerating
- aadarsh9
- · Replies 7 ·
Understanding OPD in Light Ray Equations
- kelvin macks
- · Replies 3 ·
What is the Separation of Two Apertures in a Light Diffraction Grating?
- Rookie
- · Replies 2 ·
What Could Be Wrong with My Calculations in the Infinite Potential Well Problem?
- Meekay
- · Replies 1 ·
Enthelpy of vaporization of hexane
- ricard.py
- · Replies 2 ·
Special theory of relativity: velocity of airplane
- salmayoussef
- · Replies 4 ·
Sliding down a sphere of ice; when do you lose contact?
- Nathanael
- · Replies 13 ·
Can Static Equilibrium Be Maintained Without Friction in This Beam Scenario?
- Corey
- · Replies 12 ·
Calculating tension in a rope on a sled
- PHYSIC NEWBEE
- · Replies 2 ·
E-field in a cylinder with a hole parallel to its axis
- fayled
- · Replies 1 ·
Find the centripetal acceleration of the moon
- BrainMan
- · Replies 10 ·
Balmer Wavelength for Hydrogen-like Fe Atom (Z=26): 0.971 nm
- Meekay
- · Replies 1 ·
Circular Motion: Find an Expression for Mass M
- GeneralOJB
- · Replies 10 ·
Gauss' Law and a Gaussian Sphere
- victorializ
- · Replies 1 ·
What's the Electric Field Inside a Sealed Metal Can in a Uniform External Field?
- victorializ
- · Replies 4 ·
Capacitor Energy and Charge Relationship
- victorializ
- · Replies 4 ·
Collisions - bullet shot in in block
- Ajmathusek
- · Replies 1 ·
Time Dilation, Spaceship Problem
- Rookie
- · Replies 37 ·
Fibre Optic Questions: Understanding Cladding and Critical Angle
- fibreoptic
- · Replies 2 ·
Vector Sum of a Standing Wave Confusion
- jdkeeley
- · Replies 3 ·
How Many Electrons Pass Through a Gold Wire Per Second?
- victorializ
- · Replies 7 ·
Normal Force in Circular Motion
- Spock2230
- · Replies 6 ·
(P.15) Angular Measure expressed in radians
- gcombina
- · Replies 5 ·
Projectile Motion- How to Calculate Displacement
- Jai
- · Replies 35 ·
Equation of variation of displacement and pressure of sound wave
- kelvin macks
- · Replies 2 ·
Calculate Efficiency of Hill for Snowboarder
- Ltpenguin
- · Replies 7 ·
How Do You Calculate Average Angular Acceleration from Revolutions?
- BrainMan
- · Replies 4 ·
Machine gun conservation of momentum problem
- BrainMan
- · Replies 7 ·
Car crash conservation of momentum problem
- BrainMan
- · Replies 9 ·
What Is the Work Done by an External Force on a Transported Electron?
- victorializ
- · Replies 8 ·
Electric Field & it's components
- victorializ
- · Replies 7 ·
Horizontal spring and wood block energy and equilibrium question
- salmayoussef
- · Replies 23 ·
Understanding the Doppler Effect: Relative Velocity Calculation Explained
- kelvin macks
- · Replies 3 ·
2 masses suspended over a pulley, finding a mistake
- aquance
- · Replies 3 ·