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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Net Force Equation for Object in Free Fall with Gravity and Drag Forces
- Theorγ
- · Replies 6 ·
Projectile motion problem involving finding launch angle
- EddieHimself
- · Replies 5 ·
A lightly damped harmonic oscillator
- kraigandrews
- · Replies 1 ·
Why is the parallax angle 1.52 arcsec if the measurement difference is 1.52 arcsec?
- jsmith613
- · Replies 7 ·
Converting the diameter for the equation l = RA/rho
- vikz
- · Replies 5 ·
Velocity in a loop with applied force and friction
- jaumzaum
- · Replies 1 ·
Calculating charge dissipation given two hanging masses
- noleguy33
- · Replies 1 ·
Blocks on Inclined Ramp Connected by Pulley
- chickyroger
- · Replies 2 ·
Correct Graph for Acceleration of Blocks A and B with Respect to Time
- vkash
- · Replies 11 ·
What acceleration of blocks in given condition.
- vkash
- · Replies 4 ·
Solve the Problem: A Challenge!
- erainer
- · Replies 4 ·
Can Electrostatics Cause Problems?
- giladsof
- · Replies 1 ·
Head-on collision between mass m and 2m at rest
- kraigandrews
- · Replies 4 ·
Total positive and negative charge in a 50g tungsten ring
- soccerballboy
- · Replies 3 ·
Alpha particle touching Gold nucleus
- kraigandrews
- · Replies 2 ·
What maximum power must the motor provide?
- stupif
- · Replies 7 ·
Complex Numbers and Vector Multiplication
- iampaul
- · Replies 1 ·
Why Does the Water Bend Towards the Comb and Not Away?
- Kyoma
- · Replies 5 ·
Electric Field on finite charged rod
- n0va
- · Replies 4 ·
How Long Does It Take for an Electron to Return to Its Initial Height?
- Leeoku
- · Replies 4 ·
Momentum - Hit and stick problem solving
- AceInfinity
- · Replies 10 ·
Why Does the Ball Leave the Tray at a Different Time Than Expected?
- Punkyc7
- · Replies 17 ·
A problem with significant figures
- Richlair
- · Replies 3 ·
Magnetic Field Mass Spectrometer Calculations
- AceInfinity
- · Replies 8 ·
Work and Energy with 2 variables
- zenophysics
- · Replies 4 ·
Finding excess electrons on an oil drop in an electric field
- AceInfinity
- · Replies 13 ·
What Happens to Percent Error as the Number of Vectors Increases?
- un_cooled
- · Replies 1 ·
Magnetic Field Strength Calculation for a Solenoid with Given Parameters
- sphys4
- · Replies 1 ·
Ice block on inclined plane- easy problem
- cep
- · Replies 2 ·
How Many Atoms and What Mass Result from an Electrical Current in Zinc?
- 314pi
- · Replies 1 ·
Question on momentum, impulse, and collisions
- Kalix
- · Replies 9 ·
How Do You Calculate the Distance Between Two Stars in a Binary System?
- kraigandrews
- · Replies 4 ·
Charge inside conducting shell
- Shukie
- · Replies 19 ·
Gravity interaction is possible between
- silent10
- · Replies 3 ·
Infinite lines of charge, Gauss' Law
- jumbalaya
- · Replies 4 ·
Calculating Crane Height from Angles
- Cbray
- · Replies 1 ·
I am back on intro physics forum Question on springs
- flyingpig
- · Replies 14 ·
How can equilibrium of a rigid body be determined using the given information?
- FearOfFM
- · Replies 5 ·
Special relativity - photograph of a moving meter stick
- Elemc
- · Replies 24 ·
How to Find Force F on a Boat with Given Forces and Motion?
- PandaBoy
- · Replies 4 ·
[Equilibrium and Pendulums] Do I have to consider the Perpendicular force?
- AJKing
- · Replies 5 ·
Statics - I think I found a mistake in the solution manual - need confirmation
- Femme_physics
- · Replies 3 ·
Rescue plane dropping a capsule at 57.3° from vertical
- stupif
- · Replies 10 ·
Conservation of mechanical energy (no friction) - doesn't work in this case?
- Femme_physics
- · Replies 28 ·
Estimating Maximum Ranges of Ammunition for Tabletop War Games
- Twit42
- · Replies 2 ·
A lens and a convex mirror problem
- zimo
- · Replies 3 ·
Two stones thrown from roof at different angles: why same final speed?
- gkangelexa
- · Replies 7 ·
Pressure/Volume question. A2 Physics
- RSG_9
- · Replies 2 ·
How Do You Calculate the Damping Constant of a Hard-Boiled Egg on a Spring?
- Punkyc7
- · Replies 6 ·
Finding cable tensions T1 and T2 in horizontal beam with two cables
- Femme_physics
- · Replies 7 ·
Some Problem Related to Position vs Time Graph
- shubham.bali7
- · Replies 3 ·
Isothermal compression vs thermally isolated compression
- balibone
- · Replies 2 ·
What is the acceleration needed to prevent block A from sliding down the cart?
- maff is tuff
- · Replies 8 ·
Solving Ampere's Law Trouble: My Mistake in Calculating B?
- giladsof
- · Replies 4 ·
Conservation of Energy speed of block
- himetx
- · Replies 3 ·
Show that the acceleration of the system is upward
- cremelatte
- · Replies 8 ·
What does this value represent in this work question?
- AJKing
- · Replies 1 ·
Why doesn't fuse F3 blow out in this circuit?
- joej24
- · Replies 9 ·
Ampere's Law vs Biot-Savart arouns a Square
- teroenza
- · Replies 4 ·
Inability to calculate kinetic energy if I use SI units
- ErikMBrewer
- · Replies 6 ·
Number of decayed atoms in a simultaneous decay process
- mike_M
- · Replies 2 ·
Finding Maximum Altitude of a Rocket
- stupif
- · Replies 41 ·
What Is the Bird's Speed After Swallowing the Insect?
- jeeves_17
- · Replies 4 ·
Separation distance between wires - Magnetic fields
- SimonSays
- · Replies 3 ·
Power of a man cycling up a hill.
- AJKing
- · Replies 2 ·
Shockwave Question: Solving Mach 3 Plane 20Km Above Person
- AriAstronomer
- · Replies 1 ·
Why isn't normal force included in the net force for an accelerating skier?
- PCSL
- · Replies 6 ·
Rotational Motion/Projectile motion of a ball on a circular ramp.
- andorrak
- · Replies 21 ·
Calculating Energy Dissipation in a Rectangular Coil with Time-Varying Current
- arl146
- · Replies 17 ·
Two lenses problem, multiple interpretations, no true answer
- zimo
- · Replies 1 ·
How Do Pressure and Impurities Affect Water's Melting and Boiling Points?
- KoalaPowa
- · Replies 3 ·
Revising simple lenses - magnified, and diminished images
- RK1992
- · Replies 1 ·
Force Experienced by Charges between Parallel Plates
- Kratos321
- · Replies 1 ·
Why is momentum conserved in collisions but not in isolated systems?
- AJKing
- · Replies 3 ·
Solving the Last 3/4 of a Second Fall: Can You Do It in 3 Minutes?
- 314pi
- · Replies 5 ·
What is the effect of adding ore to a coasting ore cart on its kinetic energy?
- AJKing
- · Replies 2 ·
Cars colliding into each other.
- kraigandrews
- · Replies 7 ·
Registering for USAPhO Exam Without a Teacher
- jli10
- · Replies 2 ·
How Do You Calculate the Velocity of a Rocket Facing Air Resistance Over Time?
- kraigandrews
- · Replies 4 ·
Proving Preserved Temporal Order of Cause and Effect
- omoplata
- · Replies 5 ·
Increasing Torque, Force, and Work: Increasing crank Length (L)
- Femme37706
- · Replies 3 ·
Where did pi^2 go in this QM j/eV unit conversion?
- timn
- · Replies 5 ·
Calculating Amplitude for Different String Gauges in Guitar Tuning
- kevin36
- · Replies 11 ·
Zero Normal force during uniform circular motion?
- soominds
- · Replies 1 ·
The conservation of momentum in 2D
- Dakkers
- · Replies 1 ·
Boy walking on beam supported by two posts
- joshncsu
- · Replies 4 ·
Speed of sound, frames of reference
- saccapella
- · Replies 8 ·
Find the magnitude of resultant of OA, OB and OC.
- devvaibhav
- · Replies 6 ·
Understanding Forces and Electric Potential
- Shaunzio
- · Replies 1 ·
How Does a Spring's Compression Relate to Impact Velocity?
- Femme_physics
- · Replies 15 ·
Normal force acting on a ladder lying against a wall
- starwars32
- · Replies 13 ·
Understanding Source Differentiation in Sound Wave Superposition
- pkc111
- · Replies 4 ·
What Determines the Peak Angular Speed of a Rotating Cylinder?
- menglish20
- · Replies 5 ·
Solving Tensions and Reaction Forces of Pole AB
- Femme_physics
- · Replies 12 ·
Instantaneous velocity question?
- Saitama
- · Replies 10 ·
Classical physics (phase diagram
- dirac1902
- · Replies 2 ·
What is the new distance between the rope and the Earth?
- Punkyc7
- · Replies 4 ·
Rotational Motion of a car on a curve
- ajmCane22
- · Replies 3 ·
Question on force and simultaneous equations
- Kalix
- · Replies 8 ·
Free body diagram of atwood machine
- Shukie
- · Replies 7 ·