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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How can the mass of an object be determined with given variables?
- suwarna07
- · Replies 1 ·
Special Relativity: Which notation to use
- Matty R
- · Replies 1 ·
What is the tension in the rope?
- Theorγ
- · Replies 11 ·
Electromotive force in constant flux
- player1_1_1
- · Replies 7 ·
Placing a 3rd charge so there is no net force
- jegues
- · Replies 15 ·
Point of Equilibrium between two charges
- jegues
- · Replies 9 ·
Constructive or destructive interference- Car radio
- sbayla31
- · Replies 7 ·
Charge question A, B, C Explanation
- flyingpig
- · Replies 4 ·
Does moment of inertia equal zero when an object is not spinning?
- flyingpig
- · Replies 13 ·
Charges placed on a hexogon, working out the force and energy
- loba333
- · Replies 9 ·
Can someone explain the concept of Mass-Energy Equivalence in simple terms?
- skoks
- · Replies 3 ·
Question on series solutions of diff equations
- blueyellow
- · Replies 1 ·
What Is the Velocity After a Cork Ball and Dart Collide?
- loba333
- · Replies 6 ·
Electric Potential Difference involving Alpha Decay question
- Eloc Jcg
- · Replies 1 ·
Complex impedance in an RLC circuit with AC voltage
- ___
- · Replies 6 ·
Difference between centripetal, tangential and angular acceleration
- madah12
- · Replies 7 ·
How Do You Solve These Classic Physics Vector Problems?
- shayaan_musta
- · Replies 4 ·
Atomic fractions of carbon and oxygen in H2, H2O, CO2 mixture
- jamesdawson19
- · Replies 2 ·
Velocity of an electron within a weak electric field?
- islimst3ri
- · Replies 10 ·
Angular acceleration of rod AB in a two-slider mechanism
- 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 ·
Why is the work in stretching a wire half of YA(∆L)²/L?
- 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 ·
Finding orbital radius and speed for synchronous orbit 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 ·
Why is the Lorentz factor γ = 1/√(1 - v²/c²)?
- 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 ·
Why does the change in velocity point toward the center in circular motion?
- 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 ·
Black hole research project: 10-page outline and book recommendations
- 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 ·
Why does total internal reflection occur in a glass prism if light is faster in air?
- 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 ·
What happens to excess voltage when a 9V source powers a 6V light bulb in series?
- Alice_ki
- · Replies 2 ·
Newton's III law (action/reaction) question
- soicuw
- · Replies 3 ·
Roller coaster: track radius for 3800 N normal force at 35 m/s
- 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 ·
Minimizing E(p,x) = p²/2m + ½mω²x² with constraint xp = ℏ/2
- bon
- · Replies 1 ·
Sketches and Forces in an Excavator System
- furor celtica
- · Replies 14 ·
Measuring friction force by rolling a soccer ball on different 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 ·
Mass on string spinning horizontally at 60 degrees
- 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 ·
Oscillations problem with theta substitution
- 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 ·
Darryl's 2-D vector displacement and distance problem
- -Dragoon-
- · Replies 6 ·