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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Rotational motion (confused about the variables)
- madah12
- · Replies 7 ·
How Do You Solve These Classic Physics Vector Problems?
- shayaan_musta
- · Replies 4 ·
Atomic Fractions: Calculating Xc & Xo in H2, H2O & CO2
- jamesdawson19
- · Replies 2 ·
Velocity of an electron within a weak electric field?
- islimst3ri
- · Replies 10 ·
Mechanism with 2 Sliders: Angular Acceleration of Rod?
- NEILS BOHR
- · Replies 13 ·
Will Supplies Dropped from a Plane Reach an Isolated Flooded Community?
- -Dragoon-
- · Replies 6 ·
Solving Tension on Strings in Diagram
- max0005
- · Replies 1 ·
Electric field in cartesian coordinates
- leventa2
- · Replies 1 ·
Solving Elasticity & Work Problems
- ppkjref
- · Replies 2 ·
Young's Modulus (Finding Average Strain)
- Big-oh
- · Replies 1 ·
Determine the translational speed of the cylinder
- k-rod AP 2010
- · Replies 1 ·
Scientific paper by R.Tobin on steroid use
- Chronos000
- · Replies 1 ·
Planetary Motion HW: Orbit Radius & Speed Around Jupiter
- k-rod AP 2010
- · Replies 4 ·
How Does Temperature Affect Particle Distribution in Two-State Systems?
- silence98
- · Replies 2 ·
What is the last relation in this tension problem?
- Theorγ
- · Replies 10 ·
Help with basic lorentz factor concept
- tahlaskerssen
- · Replies 1 ·
Coefficient of kinetic friction on a 60° inclined plane
- craig.16
- · Replies 8 ·
Calculating Orbital Periods Using Kepler's Third Law
- craig.16
- · Replies 2 ·
Understanding Centripetal Acceleration: Explained with Easy-to-Follow Graphics
- Earn Success
- · Replies 13 ·
How Can Fourier Series be Used to Expand a Continuous Function of Period 2L?
- blueyellow
- · Replies 5 ·
Momentum and Kinetic Energy Question
- craig.16
- · Replies 2 ·
How Does Electron Transfer Affect Human Net Charge?
- 123yt
- · Replies 3 ·
Solving Rotation Question: Find Angular Speed After Collision
- sicrayan
- · Replies 3 ·
Centripetal acceleration - why?
- Cloud 9
- · Replies 3 ·
Pendulum Velocity: Understanding Wave Motion
- BeiW
- · Replies 1 ·
A little help here with black holes
- hytech
- · Replies 6 ·
Satellite motion and Moment of Momentum
- ___
- · Replies 5 ·
How does the impulse affect the ball's speed?
- kissafilipino
- · Replies 2 ·
Calculate the original speed of the cue ball
- panders3
- · Replies 5 ·
Calculating Average Power Density of a Uniform Plane Wave
- cathode-ray
- · Replies 4 ·
Discharging Capacitor in an RC Circuit w/ Battery
- deftonix
- · Replies 13 ·
How Can You Build an Effective Air Cannon to Extinguish Candles from a Distance?
- hamilton4prez
- · Replies 3 ·
How Does Drag Affect Projectile Speed Over Time?
- craig.16
- · Replies 6 ·
What is the Composition of a Pu239 and Pu240 Mixture Based on Specific Activity?
- zorro
- · Replies 11 ·
Total Internal Reflection in Glass prism Question?
- Mohd95
- · Replies 2 ·
What Is the Total Force Exerted by a Falling Chain on the Ground?
- sachin123
- · Replies 10 ·
How do para- and dia- magnetics differ in terms of magnetization?
- inline
- · Replies 2 ·
Calculating Coefficient of Static Friction for Crate on Inclined Plane
- craig.16
- · Replies 5 ·
Momentum/Conservation of Momentum
- tallbus1
- · Replies 12 ·
Quantum Mechanics pendulum problem
- bon
- · Replies 10 ·
Could open tube and closed (at one end) tube produce the same frequency?
- sbayla31
- · Replies 5 ·
Why do the following formulae give different values of the r.m.s
- binbagsss
- · Replies 1 ·
Projectile Motion of a snowball
- nblu
- · Replies 18 ·
How to Solve Dynamics of Rigid Bodies Problems Involving Friction?
- nella_ph
- · Replies 2 ·
Problem of voltage & light bulbs
- Alice_ki
- · Replies 2 ·
Newton's III law (action/reaction) question
- soicuw
- · Replies 3 ·
Design a Roller Coaster: Calculate Track Radius for 3800 N Force
- runningirl
- · Replies 9 ·
Force on a moving charge in a magnetic field
- flrxz
- · Replies 2 ·
How does pendulum height relate to length when impacted by a bullet?
- BryMan92
- · Replies 2 ·
The placing of charges in electrostatics
- IndiaNut92
- · Replies 4 ·
Seemingly easy quantum question
- bon
- · Replies 1 ·
Sketches and Forces in an Excavator System
- furor celtica
- · Replies 14 ·
Need help with physics project involving force of friction of various surfaces.
- borderbuddie
- · Replies 1 ·
How Do Suspended Charged Spheres Behave?
- Nevok
- · Replies 2 ·
How Do You Calculate the Forces in a Tug of War?
- w0lverine
- · Replies 1 ·
How Do You Calculate the Speed and Maximum Height of a Stone Thrown Upward?
- pyromonkey39
- · Replies 3 ·
Circular Motion: Calculate Velocity & Period
- runningirl
- · Replies 4 ·
Will a Rigid Body Continue to Rotate Without Centripetal Force?
- player1_1_1
- · Replies 7 ·
Heat capacity at constant volume
- Grand
- · Replies 4 ·
Relativity, how it affects observation.
- chewtoy929
- · Replies 3 ·
Why Does a Transverse Wave Show Particle Movement Downwards?
- ibysaiyan
- · Replies 5 ·
Potential due to infinite sheet
- nicksauce
- · Replies 5 ·
How Does Changing the Work Function Affect Photoelectron Emission?
- meltem
- · Replies 3 ·
Should be very simple F=ma question
- Asphyxiated
- · Replies 11 ·
How Do You Calculate an Astronaut's Orbit Around the Moon?
- bang
- · Replies 5 ·
How Do You Calculate the Acceleration of an iPad on a Frictional Surface?
- JamesG
- · Replies 6 ·
What Do Quantum Numbers in \(\psi_{510}\) Indicate About Electron States?
- kakarotyjn
- · Replies 2 ·
Parallel Plate Capacitor Question (Many Attempts)
- MattNotrick
- · Replies 4 ·
Electrostatic Force between point charges
- Xels
- · Replies 4 ·
Calculating Geosynchronous Satellite Orbit and Velocity
- runningirl
- · Replies 15 ·
Rotational Motion - Two spheres orbiting around a common barycenter
- Rosengrip
- · Replies 3 ·
How to Approach Oscillations Homework Problems
- prinnori
- · Replies 3 ·
What is the Change of Length for a Hanging Steel Cable?
- brainslush
- · Replies 1 ·
Minimum uncertainty in position
- [webmaster]
- · Replies 9 ·
How do we add vectors numerically?
- fawk3s
- · Replies 7 ·
How can I find the mass of a junior curling stone using momentum?
- The_big_dill
- · Replies 18 ·
Interior temperature of a solar collector
- imatreyu
- · Replies 3 ·
Temperature Of the Air in a Tire
- sona1177
- · Replies 3 ·
Latent Heat of Fusion and Potential Energy
- Vaal
- · Replies 4 ·
Force Direction of Alpha Particle in Magnetic Field
- qswdefrg
- · Replies 2 ·
The ability to visualize abstract concepts
- GoGoGomez
- · Replies 3 ·
Proof of angular speed of satellite
- Miklagaard
- · Replies 2 ·
Relative velocity of 2 particles
- DespicableMe
- · Replies 1 ·
Charges on a square - find forces
- moondawg
- · Replies 3 ·
Solving 2-D Vector Problems: Darryl's Distance & Displacement
- -Dragoon-
- · Replies 6 ·
How Does Newton's Third Law Apply to a Particle on Different Slopes?
- ecy5maa
- · Replies 4 ·
Help Needed: Solving Physics Problem with Zero Understanding
- cubejunkies
- · Replies 1 ·
How Is Instantaneous Acceleration Calculated in Velocity-Time Graphs?
- cFleming
- · Replies 9 ·
What best describes the buoyant force on the objects?
- Bogus_Roads
- · Replies 9 ·
Can Conservation of Momentum be Used for Inelastic Collisions?
- sachin123
- · Replies 8 ·
Rotational Motion Two Questions
- hunansux
- · Replies 12 ·
Finding time average Poynting vector
- kylie14
- · Replies 2 ·
Acceleration of Two Masses on a Pulley with Moment of Inertia
- Karol
- · Replies 2 ·
Projectile motion, water cannon into storage tank
- casemeister06
- · Replies 3 ·
Understanding Time Dilation: How Do Clocks Differ in Space Travel?
- DespicableMe
- · Replies 1 ·
Calculating Angular Acceleration: A Flywheel Question Explained
- janiexo
- · Replies 5 ·
Trouble with circuit calculations
- stu12345
- · Replies 2 ·
Moment of inertia of a hollow sphere
- chickendude
- · Replies 6 ·
Crazy Problem trying to figure out what formula is used for
- Mike The Ques
- · Replies 1 ·
Cons. Momentum/Energy of rubber block blown up by explosive
- strangeeyes
- · Replies 7 ·