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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Dipole moment of sphere with uniform volume charge Q
- Saraphim
- · Replies 7 ·
Solve Hard Vector Problem: Location of City C
- mandy9008
- · Replies 2 ·
Calc # of Persons Carried by Hydrogen Balloon
- physicsnoobss
- · Replies 1 ·
What is the acceleration of the speaker cone with these specifications?
- Mathysics
- · Replies 1 ·
Electric field outside of conducting sphere.
- ramses07
- · Replies 3 ·
Sign convention in gravitational force toward Earth's center
- rbnphlp
- · Replies 6 ·
How Does Upwards Drag Force Create Horizontal Torque in a Paper Helicopter?
- asu04
- · Replies 3 ·
Calculating Energy Requirements for Phase Changes in Water
- urgent
- · Replies 1 ·
How fast would a 163 Hz wave travel
- traveler7
- · Replies 7 ·
Question on car speed and distance.
- wolfgangjt
- · Replies 1 ·
Finding acceleration of two blocks with pulleys
- mnafetsc
- · Replies 1 ·
Object pulled up an incline with friction
- Jkblackbear08
- · Replies 1 ·
Solving Friction Problems: 500N Box on a Non-Frictionless Floor
- Jkblackbear08
- · Replies 1 ·
With respect to what does a spinning object maintain its orientation?
- tmst08
- · Replies 16 ·
Why Can Mechanical Waves Propagate Through a Medium?
- eureka_beyond
- · Replies 3 ·
Calculating Impulse of a Ball Dropped from Rest
- mickellowery
- · Replies 5 ·
Calculating Momentum Change in Elastic Collisions
- superaznnerd
- · Replies 13 ·
How Far Will the Spring Be Compressed?
- pleasehelpme6
- · Replies 9 ·
Magnetism Q: Speed of Loop in Magnetic Field
- superaznnerd
- · Replies 2 ·
Circuit with 2 resistors, inductor, and capacitor
- Vapen
- · Replies 12 ·
Finding Final Velocity in a Spring Loaded Collision
- pleasehelpme6
- · Replies 2 ·
Angular acceleration of a bar on a hinge
- mickellowery
- · Replies 1 ·
Projectile motion bomb drop from airplane at 98m height
- ghostbuster25
- · Replies 2 ·
Acceleration of particles with differing masses in a uniform electric field
- squimmy
- · Replies 7 ·
What main topics of time dilation should I cover in a space travel presentation?
- Mange
- · Replies 1 ·
Rotational kinematics: moment of inertia, angular momentum and gyroscope
- r34racer01
- · Replies 3 ·
Intial speed of projectile motion from height
- ghostbuster25
- · Replies 2 ·
Instananeous accerlerations on a velocity vs time graph
- mandy9008
- · Replies 6 ·
Projectile Motion Firing Question
- iurod
- · Replies 1 ·
Projectile Motion Angles Question
- iurod
- · Replies 8 ·
Pivoting Stick (Rotational Dynamics)
- santi_h87
- · Replies 2 ·
Work Done by Braking Force to Stop a 1240 kg Car at 86.0 km/hr
- brittany_g18
- · Replies 2 ·
Equilateral triangle coulombs law problem
- physicskid72
- · Replies 5 ·
Why Don't All Molecular Vibrations Lead to Observable Infrared Absorptions?
- Moogie
- · Replies 3 ·
Electrostatic physics: can someone check my answers?
- Roro312
- · Replies 1 ·
Beta -decay converting u to MeV
- MrsChaos
- · Replies 2 ·
Maxwell and his equations essay - should i include aether theory heavily?
- roberto85
- · Replies 2 ·
How do I find fundamental cutsets?
- noobie!
- · Replies 1 ·
Cart-Cart Collision, Conservation of Momentum
- pleasehelpme6
- · Replies 3 ·
Work done on capacitors and more
- Tntgsh
- · Replies 2 ·
Projectile launched at 45° up a 20° incline
- daniel1919
- · Replies 4 ·
Finding Electron Speed and Wavelength
- purecp
- · Replies 2 ·
What is the Acceleration of an Object Pushed by Hand Pressure?
- Zirok
- · Replies 2 ·
1-D coulomb repelling of 3 charges
- cracking
- · Replies 8 ·
Calculating Velocity of Ball at Impact with Ground
- Trandall
- · Replies 5 ·
Energy problem with inelastic collision
- mickellowery
- · Replies 1 ·
Work done dragging a 50kg crate 8m at 20 degrees above horizontal
- lynchdemartin
- · Replies 8 ·
What is the orbital speed of a satellite in geostationary orbit?
- Oliviam12
- · Replies 6 ·
Query regarding electrostatics
- KKtm
- · Replies 7 ·
Embarassing question- Displacement equation
- literacola
- · Replies 10 ·
Units for wave vector and other?
- Readinglevel^
- · Replies 2 ·
Can I Convert PSI to kPa Using Dimensional Analysis?
- JoeMaxwell92
- · Replies 3 ·
Why is ΔP zero in an isobaric process?
- traveler7
- · Replies 5 ·
Converting 6.21×10³ kg/m³ to slugs/gal
- natpac82
- · Replies 3 ·
How Does Charge -Q Exhibit Simple Harmonic Motion?
- erok81
- · Replies 15 ·
Conducting rod through a magnetic field
- thereddevils
- · Replies 1 ·
Projectile motion without time and initial velocity
- bur7ama1989
- · Replies 16 ·
Ohm's Law and the Principles of DC Circuits
- tigerwoods99
- · Replies 8 ·
Wind load - is it a FORCE or PRESSURE?
- joeykeys
- · Replies 5 ·
One Dimension Kinematics Question
- iurod
- · Replies 6 ·
Verifying Torque and Motion Problem Solution
- Hockeystar
- · Replies 6 ·
Circular motion problem using energy conservation and Newton's second law
- inky
- · Replies 17 ·
What is the Average Force Exerted by the Wall on a Bouncing Ball?
- roam
- · Replies 2 ·
The Collision of Two Differently-Massed Balls
- Physicsy
- · Replies 8 ·
Weight of man in a lift when lift is ascending/descending.
- equilibrum
- · Replies 4 ·
of which i thought was an ellastic collision problem
- rottenapple
- · Replies 3 ·
Spring constant of series springs in seismograph system
- Paymemoney
- · Replies 16 ·
RLC AC circuit can't get right answer
- AdamP
- · Replies 5 ·
How Can You Predict Sound Amplification in a Conical Volume?
- the_dialogue
- · Replies 1 ·
DC Electromagnetic Motor-small question
- moshrom
- · Replies 2 ·
Bouncing Ball Problem, velocity vs. time
- kingneb
- · Replies 7 ·
Tow-bar force on trailer during braking on inclined road
- slakedlime
- · Replies 5 ·
Ballistics pendulum - sort of - COM
- pat666
- · Replies 2 ·
Need to calculate work from mass and two velocities
- kylepetten
- · Replies 2 ·
Ramp angle and landing velocity
- clockworks204
- · Replies 4 ·
How Does Adding Weight Affect the Oscillation of a Board on Rollers?
- Maneuver1
- · Replies 11 ·
Balancing a mass using a balance beam
- louza8
- · Replies 6 ·
Leaping Off the 400-Year-Old Bridge in Bosnia
- mandy9008
- · Replies 3 ·
Block on spring and hanging mass returning to equilibrium
- gomerpyle
- · Replies 1 ·
What are examples of physics in Apollo 13 and October Sky?
- littleavis
- · Replies 1 ·
Where to place q3 so net force is zero
- Mitchtwitchita
- · Replies 9 ·
Rpm related to velocity and diameter
- cgaday
- · Replies 3 ·
Charge Distribution on Metallic Plates
- surajkaul
- · Replies 3 ·
Calculating a Ball's Height on Its Way to 1st Base
- clockworks204
- · Replies 6 ·
Sum of moments about point P in rigid triangular frame
- slakedlime
- · Replies 9 ·
Atwood machine bounce, how high?
- Uku
- · Replies 4 ·
Is the 10N Force on the Bike Wheel Causing It to Move Backwards?
- nazz
- · Replies 1 ·
Find the buoyant force on the iceberg
- ombudsmansect
- · Replies 3 ·
What is the total energy required to heat the material to 80 degrees?
- Dafe
- · Replies 1 ·
Speed of Raindrops Relative to Ground: 31.93 m/s
- roam
- · Replies 5 ·
Sound wave no idea how to do it
- pat666
- · Replies 7 ·
Average Velocity on a Position vs Time Graph
- mandy9008
- · Replies 2 ·
Recoiling Cannon Projectile Velocity
- pleasehelpme6
- · Replies 1 ·
Capacitor,dielectric and force on plates
- bharath423
- · Replies 6 ·
Electric Potential Difference Between Two Charges
- Mirole
- · Replies 6 ·
Exam based on Mastering Physics anyone?
- louza8
- · Replies 2 ·
How Does Releasing Coal Affect the Speed and Dynamics of a Railroad Car?
- pleasehelpme6
- · Replies 9 ·
How Do You Calculate Displacement in a Multi-Directional Jogging Route?
- micahps
- · Replies 5 ·
1300 kg car moving east collides with 2600 kg SUV moving north at 28 m/s
- friedpork
- · Replies 3 ·