Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
Threads
What is the Solution to a Confusing Circular Motion Problem?
- thunderhadron
- · Replies 5 ·
Maximum separation of points A and B before rope breaks at 4000N tension
- atagl1
- · Replies 4 ·
Calculating Force on Quarter Cylinder Dam Gate with Hinge and Stopper
- cambo86
- · Replies 5 ·
Electric Field Calculation for Infinitely Long Charged Line and Rod
- Govyadina
- · Replies 2 ·
What is the Correct Solution to a Work, Power, and Energy Problem?
- thunderhadron
- · Replies 1 ·
Is a Paint Document Reliable for Answer Verification?
- Miike012
- · Replies 3 ·
Finding out maximum from given velocity?
- Richard Ros
- · Replies 6 ·
Electric Field with a Solid Spherical Conductor
- Yosty22
- · Replies 7 ·
Weight vs Mass On Moon and Mars Imperial Units
- BigJon
- · Replies 1 ·
Basic Engineering Mechanics (trigonometry)
- ellieahlquist
- · Replies 5 ·
Parallel and perpendicular part of a vector
- cytochrome
- · Replies 4 ·
Evaluating Temperature v time graph
- Miike012
- · Replies 1 ·
Find the average and uncertainty?
- youngveins
- · Replies 1 ·
Electric Field of a Conducting Sphere
- Yosty22
- · Replies 1 ·
Minimum plastic plate thickness for maximum microwave reflection
- V0ODO0CH1LD
- · Replies 3 ·
Calculating Acceleration and Error for a Ball Rolling Down an Inclined Plane
- dhamaniasad
- · Replies 1 ·
Calculating Falling Objects: GPE, KE and Speed
- Ravious
- · Replies 2 ·
Controlling fluid Flow under pressure?
- Frangelo
- · Replies 2 ·
Arrangement of circuit affecting resistance measured
- coconut62
- · Replies 2 ·
Finding Light Intensity with Two Offset Slits
- Gee Wiz
- · Replies 9 ·
How Much Would You Weigh on Neptune?
- davev
- · Replies 4 ·
Multiple Blocks on incline, friction vs force.
- Semoirethe
- · Replies 11 ·
Question on Terminal Velocity finding time
- baird.lindsay
- · Replies 6 ·
Period Ratio for Horizontal and Vertical Oscillations
- mbigras
- · Replies 2 ·
Is the Current Calculation in the Circuit Incorrect?
- Miike012
- · Replies 3 ·
Constant acceleration, bike vs. car
- Feodalherren
- · Replies 3 ·
Grouping all of the units at the end? I.E. F=ma = 2.3*424.3 [kg*m/s]
- WK95
- · Replies 7 ·
Why is equivalent charge equal to one capacitor's charge, not the sum?
- Hercuflea
- · Replies 1 ·
Magnitude of a Point Charge on a Line
- theintarnets
- · Replies 1 ·
At what height should a mirror be hung for a man to see his full reflection?
- Daniella_123x
- · Replies 3 ·
Relationship between Electric and Magnetic Field Amplitudes in Light Waves
- GreenPrint
- · Replies 1 ·
Snapshot graph of Superposition
- mcnealymt
- · Replies 1 ·
Net Force of Charges on an Equilateral Triangle
- theintarnets
- · Replies 5 ·
Calculating Speed for Time Dilation in the Twin Paradox
- k3r0
- · Replies 5 ·
If E=C at O, what is the full force
- jaydnul
- · Replies 1 ·
What is the fundamental frequency of an aluminum rod?
- mcnealymt
- · Replies 9 ·
Finding Initial Velocity to Solve Bowling Ball Speed Problem
- danosu43
- · Replies 4 ·
Finding incline angle for constant speed with friction and pulley
- iScience
- · Replies 7 ·
Max Compression of Spring with Friction
- iScience
- · Replies 16 ·
Application of Gauss's Law to Charge Distribution
- zachfoltz
- · Replies 4 ·
What is the significance of relative velocity in the Doppler effect?
- PsychonautQQ
- · Replies 5 ·
Is my method for solving the GRE Relativity Problem correct?
- PsychonautQQ
- · Replies 2 ·
How Many Excess Electrons Does a Negatively Charged Balloon Have?
- jaydnul
- · Replies 6 ·
Why does a meniscus lens correct myopia?
- s3a
- · Replies 5 ·
Question Pertaining To Newton's Laws
- Bashyboy
- · Replies 20 ·
Is Static Friction the Dominant Force in a Block on Top of a Slab System?
- Bashyboy
- · Replies 4 ·
Calculating Initial Velocity of an Electron with Constant Acceleration
- docbrown
- · Replies 2 ·
Finding F2 and F3 given resultant and F1 on a hook
- jessicapearson
- · Replies 2 ·
How Does Moving an Iron Rod Affect Ammeter Readings in a Solenoid Circuit?
- Betadine
- · Replies 1 ·
Why Are My Calculations for Force on a Charge Not Matching Up?
- kirax105strike
- · Replies 5 ·
Equivalent Resistance - Resistors Intertwined
- Hurricane9
- · Replies 7 ·
Jerk times velocity cross position
- d2x
- · Replies 1 ·
Horizontal component of an electric field at origin
- kirax105strike
- · Replies 2 ·
Why is wire tension greater than the ball's weight?
- student34
- · Replies 2 ·
Kinematics and energy conservation homework
- TheRedDevil18
- · Replies 9 ·
Are these motion diagrams of velocity & acceleration vectors correct?
- mileena
- · Replies 11 ·
How many kilograms of sand have a total surface area of 6 m^2?
- icesalmon
- · Replies 28 ·
Two charged balloons floating in equilibrium with angle θ
- Gazaueli
- · Replies 7 ·
Specific Heat Capacity of a body
- andyrk
- · Replies 12 ·
Does Surface Area Affect the Coefficient of Friction?
- k31453
- · Replies 2 ·
Does friction in a pulley act on the axle or the string surface?
- andyrk
- · Replies 20 ·
Spaceship ejecting mass at right angles
- Saitama
- · Replies 9 ·
Why do parallel springs have equal extension?
- andyrk
- · Replies 3 ·
Energy transfer in solar panels
- ZanyCat
- · Replies 1 ·
Finding elevator position from velocity-time graph with corrected axes
- mathwhiz
- · Replies 6 ·
Two charged spheres on inclined rail: equilibrium and acceleration
- Gazaueli
- · Replies 3 ·
Is Tension Constant in a Massless String?
- andyrk
- · Replies 1 ·
Kirchhoff's Rules. Solving for currents in circuit with two batteries
- Painguy
- · Replies 2 ·
Calculating Internal Energy Change in a Gas Under Constant Pressure
- duds1234
- · Replies 5 ·
Finding q(t) (charge) given i(t) (current).
- Flinchy
- · Replies 3 ·
Replace all the loads on the beam with one resultant force.
- aerograce
- · Replies 2 ·
Why does ds/dt equal 1 when the parameter is arc length?
- tuggler
- · Replies 1 ·
Does Tension Affect Frequency and Velocity in Wave Equations?
- jvdamdshdt
- · Replies 3 ·
Basic numeracy - exact meaning of accurate to one part in a thousand
- tomwilliam2
- · Replies 3 ·
Finding initial and final velocity of keys thrown upward
- mileena
- · Replies 21 ·
Seemingly easy mechanics problem (constant acceleration)
- Feodalherren
- · Replies 8 ·
Film thickness to minimize reflection at 550 nm
- InferiorMindX
- · Replies 5 ·
Projectile Motion Questions: Solving for Height, Velocity, and Time
- member2357
- · Replies 5 ·
Visualizing a rock passing a window
- drjohn15
- · Replies 2 ·
Finding voltage v in a circuit with current sources using KVL and KCL
- EE is cool
- · Replies 14 ·
How to solve for unknown charge position
- PhizKid
- · Replies 5 ·
Calculating total force on charged particle
- jaydnul
- · Replies 6 ·
Potential and Thermal Energy
- PEZenfuego
- · Replies 11 ·
Need to compute distance during during acceleration of a train
- mileena
- · Replies 9 ·
Deceleration of child's head on hardwood vs carpet floor
- mileena
- · Replies 14 ·
Relating orbital period of binary asteroids to their mutual orbit period
- Beer-monster
- · Replies 19 ·
How Does Water Sloshing Dynamics Relate to Continuity Conditions in Physics?
- mbigras
- · Replies 7 ·
Volleyball Problem involving Projectile Motion
- inferno298
- · Replies 11 ·
Solve Physics Problem: Find Position/Velocity
- Telzis
- · Replies 4 ·
Find the distance between and object and its image
- caitg
- · Replies 2 ·
How does a chain slip out of a horizontal tube?
- Saitama
- · Replies 17 ·
Finding loss of energy in collision
- Saitama
- · Replies 6 ·
Percentage error in classical momentum when kinetic energy equals twice rest energy
- PsychonautQQ
- · Replies 3 ·
What is the velocity dependence in the equation of a standing wave?
- andyrk
- · Replies 13 ·
Why does liquid incline in an accelerating beaker?
- andyrk
- · Replies 6 ·
Calculating new velocity from velocity and momentum? Confusing
- lovesam
- · Replies 4 ·
How can you compare three different temperature scales?
- Miike012
- · Replies 6 ·
Finding Initial Velocity Components of a Projectile Using Kinematic Equations
- Bashyboy
- · Replies 5 ·
Show mechanical energy is not conserved in an inelastic collision.
- brikayyy
- · Replies 7 ·
Finding Absolute Uncertainty Using Formulas
- Coop
- · Replies 1 ·