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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Kinematics equation problem. (two stones dropped from different heights)
- Sentience
- · Replies 8 ·
Mass of a particle in magnetic field
- sonic52260
- · Replies 4 ·
An Electrostatics Problem - Eletric Field
- Yukimi
- · Replies 7 ·
Angular Velocity of a wind turbine
- neoncrazy101
- · Replies 3 ·
Why Is a Turbine More Efficient in Winter?
- Peter G.
- · Replies 3 ·
Calculating Uncertainty in Angular Resolution for Scientists
- P-Jay1
- · Replies 5 ·
Calculating Magnetic Flux Density for Zeeman Splitting 0.05 /cm
- bon
- · Replies 1 ·
Proton accelerated thru potential difference - find final speed
- AladdinSane
- · Replies 5 ·
Solving Bacterial Motor Angular Speed and Time for One Revolution
- neoncrazy101
- · Replies 5 ·
How do I find reaction forces at B and D on a loaded beam?
- dvep
- · Replies 5 ·
Calculating Energy Received by Ear
- FeDeX_LaTeX
- · Replies 1 ·
The rays of my ray diagram are not lining up
- jeremy5561
- · Replies 2 ·
How refrigerators and air conditioners work
- ProPM
- · Replies 4 ·
How Do Transformers Affect Voltage, Current, and Light Bulb Brightness?
- IanT
- · Replies 12 ·
Risk aversion with logarithmic utility function and wealth gamble
- coldway
- · Replies 5 ·
Spherical Harmonic Hydrogen Wavefunction
- bon
- · Replies 6 ·
Linear Algebra - matrix problem
- idn1984
- · Replies 7 ·
Will the Truck Roll Back Down the Slope Due to Insufficient Friction?
- tobes_oz
- · Replies 3 ·
Center of gravity - conflicting result
- Femme_physics
- · Replies 34 ·
Formulas needed for a dynamic problem
- Femme_physics
- · Replies 33 ·
Electric flux through a circular plate
- rolls
- · Replies 6 ·
How long should a potato cannon barrel be to maximize range with 1200 J of energy?
- cupcuppycup
- · Replies 1 ·
Atwood machine with one mass on the floor
- DmytriE
- · Replies 4 ·
How do I troubleshoot a simulation not loading in my web browser?
- teggenspiller
- · Replies 1 ·
What Is the Difference Between Temperature and Thermal Energy?
- Peter G.
- · Replies 2 ·
How Much Torque Is Needed to Stop Rotating Balls in 6.97 Seconds?
- Leeoku
- · Replies 3 ·
How Fast Must a Bullet Travel to Tip a Block on Its Edge?
- Krappy
- · Replies 3 ·
Acceleration of a pendulum as a function of time
- mcovalt
- · Replies 1 ·
Moment of inertia of a wire shaped into a semi circle
- kingkong69
- · Replies 1 ·
Identifying false statements about motion concepts
- gibson101
- · Replies 8 ·
The Strong Force on a Neutron Captured by a Nucleus
- mcdowellmg
- · Replies 1 ·
Uniform circular motion with a pendulum
- Femme_physics
- · Replies 59 ·
What is the Final Angular Velocity of a Cylinder?
- James50
- · Replies 3 ·
Constant acceleration velocity and displacement
- libertyforall
- · Replies 1 ·
Hooke's Law for Compression: Is the Constant the Same as for Extension?
- factfinder
- · Replies 1 ·
What Determines Relativistic Momentum: Mass or Velocity?
- Shark 774
- · Replies 2 ·
Which object has the greatest final velocity?
- jennyerickson
- · Replies 2 ·
What is the Annual Percentage Growth in Energy Consumption from 1996 to 2025?
- Jenkz
- · Replies 4 ·
How Does Subtracting and Adding Masses Affect Acceleration in a Force Equation?
- mcdowellmg
- · Replies 3 ·
Finding kinetic energies of particles in center of mass frame from decay
- gnulinger
- · Replies 2 ·
Structural Supports on a bridge
- calixgirlx1
- · Replies 1 ·
Proof of Periodic Sinusoidal waveforms
- tomh
- · Replies 1 ·
Bullet fired into a block that and swings like a pendulum
- kerbyjonsonjr
- · Replies 3 ·
General gravitational potential energy question
- iceman99
- · Replies 3 ·
Maximum tension in rotating shaft at 300 rpm
- Femme_physics
- · Replies 24 ·
Index of Refraction of Liquid: Find Value
- Voong
- · Replies 5 ·
What Forces Balance for a Stationary Deflected PP-Ball?
- gurtaj
- · Replies 1 ·
Non-Uniform Circular Motion - Find Change in time
- mcovalt
- · Replies 8 ·
How Do You Calculate Power Input for an Alternator at 3000rpm?
- fran1942
- · Replies 1 ·
Inclined plane and spring problem
- emailanmol
- · Replies 4 ·
Does a North Pole Magnet Attract or Repel Metal?
- fran1942
- · Replies 1 ·
True or false kinematics statements: distance, displacement, acceleration
- gibson101
- · Replies 1 ·
Where can I find resources for studying circuit problems?
- thatnewkid
- · Replies 2 ·
Why Can't I Sum Potentials in Electrostatics Problem?
- Beer-monster
- · Replies 3 ·
Where can I find past exam answers for 1984 and 1988
- epix
- · Replies 3 ·
Point Charge sliding on a semi-circle
- hershey7
- · Replies 12 ·
How can I create a model roller coaster without using additional energy?
- DefyGravity
- · Replies 4 ·
Simple Harmonic Motion , finding the time taken to travel an angular dispalcemnt
- kingkong69
- · Replies 3 ·
Total Distance Traveled by Bird Before Train Collision?
- libertyforall
- · Replies 7 ·
Swing 360: Solve for Velocity of Swingset
- Mathg09
- · Replies 4 ·
Guess Teacher's Mass: 6.43, 60, 64.3, 600, 643 kg
- cupid.callin
- · Replies 3 ·
Cooling of an Object: Which Hypothesis is Correct?
- scientifico
- · Replies 1 ·
Finding Vertical and Horizontal Forces on a Hinged Bar
- MozAngeles
- · Replies 4 ·
Electrons in uniform electric field
- herbert1
- · Replies 1 ·
How Do You Calculate Temperature Rise in Copper Windings?
- Red_shift
- · Replies 1 ·
Sailboat in the wind problem. (Kinematics) Conceptual question.
- Sentience
- · Replies 3 ·
Calculating Velocity of Falling Dumbbell: Two Masses Connected by Rod
- Square47
- · Replies 4 ·
Simple Kinematics Problem - Is the book wrong?
- Nano-Passion
- · Replies 7 ·
Discern initial V w/o components?
- afronicus
- · Replies 5 ·
Coulomb's Law and Final Angle of Dust Cobweb
- leafsfan2
- · Replies 1 ·
Finding X in the matrix equation AXB = C
- BilloRani2012
- · Replies 6 ·
How high to release a pendulum bob so the string stays taut at the top
- reganw
- · Replies 4 ·
Thermodynamics - Rods, bubbles and magnets
- MikamiHero
- · Replies 3 ·
Standing Waves: Amplitude, Nodes, and Energy
- Abhishekdas
- · Replies 2 ·
What is the instantaneous value of UL after commutation?
- builder_user
- · Replies 70 ·
Charging time for a 378 minute battery pack at 100 mA
- Travian
- · Replies 18 ·
How Does an Incline Affect Truck Deceleration?
- scott86
- · Replies 4 ·
Calculating Acceleration and Tensions in a Blocks and Pulley System
- DragonZero
- · Replies 4 ·
Minimum star declination for circumpolar visibility at altitude
- trina1990
- · Replies 5 ·
Photons collected be telescope apertures
- trina1990
- · Replies 2 ·
Why doesn't the reverse Carnot cycle work with a cold source?
- Peter G.
- · Replies 8 ·
Acceleration of falling object with drag force proportional to v^n
- LukeEvans
- · Replies 12 ·
System of equations with pizza and garlic bread costs
- BilloRani2012
- · Replies 15 ·
What Is the Correct Method to Calculate W and Alpha in Planar Kinematics?
- smruthi92
- · Replies 3 ·
Standing waves question with harmonics?
- Kratos321
- · Replies 4 ·
Force-time diagram for block dropped on rope from high elevation
- Red_CCF
- · Replies 4 ·
Finding the magnitude of impulse
- oalanojr
- · Replies 2 ·
Earth's magnetic field in Brisbane
- ausdreamer
- · Replies 2 ·
Calculating Fundamental Frequency of Vibrating String
- newtons1L
- · Replies 6 ·
Accuracy of Resonance Lab Experiment
- kamalholly
- · Replies 1 ·
Rigid Rotator (Quantum Mechanics)
- bon
- · Replies 8 ·
Direction of the change of momentum
- oalanojr
- · Replies 2 ·
Calculating Time Dilation in a Relativistic Spaceship Passage
- Little PBrane
- · Replies 2 ·
Stress strain and youngs modulus
- Luke1121
- · Replies 3 ·
Uniform electric and magnetic field
- aiika
- · Replies 5 ·
Charging by Friction: Explanation and Questions
- handsoff
- · Replies 1 ·
Can Rubbing a Metal with a Cloth Charge It by Friction?
- nilic1
- · Replies 2 ·
Uniform circular motion - simple problem
- Femme_physics
- · Replies 4 ·