Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
Threads
Positive vs. negative work in an elevator?
- thepegmeister
- · Replies 3 ·
Elastic and Inelastic collisions assignement problems. 1st year physics
- torth76
- · Replies 1 ·
What is the Rate of Work Done by a Spring on a Sliding Object?
- tebes
- · Replies 9 ·
Can the Total Energy in a Spring Be Rearranged?
- JustinLiang
- · Replies 1 ·
Disc with pin at edge released horizontally, moment of inertia about pivot
- Aralox
- · Replies 7 ·
Bernoulli's Equation: Finding the net force of wind blowing over a house
- blueorchid
- · Replies 1 ·
Binary Star System: Kinetic Energy of an approaching Comet
- LinearBeat
- · Replies 3 ·
Bumper car elastic collision and center of mass frame
- kiki_havoc
- · Replies 4 ·
Calculating Work Done by Spring at Various Positions
- tebes
- · Replies 2 ·
Conservation Laws - Finding angle ?
- nukeman
- · Replies 5 ·
How Long Should a Gravel Ramp Be to Stop a Runaway Truck?
- LinearBeat
- · Replies 2 ·
How Long for One Revolution on a Ferris Wheel?
- phoenix133231
- · Replies 6 ·
Water falling out of an upturned bottle.
- rollcast
- · Replies 2 ·
How Do You Calculate the Moment of Inertia for a Disk Rotating About Its Edge?
- deezy
- · Replies 1 ·
Three polarizers are arranged as shown in the figure
- MozAngeles
- · Replies 1 ·
Ideal gas expansion/compression
- format1998
- · Replies 2 ·
How Is the Radial Component of an Electric Field Proven to Cancel Out in a Ring?
- rick_2009
- · Replies 2 ·
Is this nuclear reaction exothermic or endothermic?
- dav1d
- · Replies 2 ·
Nuclear Physics Find molar binding energy
- dav1d
- · Replies 2 ·
Caculate the force between to anti-parallel wires
- LBP
- · Replies 3 ·
How Thick Should Spiderman's Silk Be to Support His Weight?
- mattyc33
- · Replies 2 ·
What is the solution to this transformer problem?
- VitaX
- · Replies 4 ·
How to Calculate Distance on an Inclined Plane Using Work and Energy?
- uhohphysics
- · Replies 1 ·
Centrifugal acceleration - radians^2?
- EinsteinKillr
- · Replies 4 ·
Diffraction grating spectrometer
- grouper
- · Replies 9 ·
2D - Momentum Question, Grade 12 Canadian Physics
- ccvispartan
- · Replies 3 ·
Double-slit diffraction with thin film interference
- grouper
- · Replies 5 ·
Box on a string, find displacement when first at rest
- lindzzz
- · Replies 3 ·
Laser action and stimulated emission
- logearav
- · Replies 6 ·
Calculate Unbalanced Force to Stop a Car in 3 Seconds
- zoezoehzoe
- · Replies 4 ·
Counterbalance weight for a dumbbell support apparatus
- Fluxite
- · Replies 1 ·
Force due to a submersible water pump to move an underwater vehicle
- DrewMan776
- · Replies 1 ·
Maximum mass supported by spider silk using toughness
- mattyc33
- · Replies 1 ·
Solving for normalised current when given only normalised resistance?
- davidc95
- · Replies 11 ·
Accceleration due to gravity of a Black Hole
- Zyxer22
- · Replies 2 ·
Box pulled by angled rope: equilibrium, friction, and acceleration
- shinnsohai
- · Replies 2 ·
What Minimum Wetness of Steam Ensures Buoyancy in a Balloon Experiment?
- Phrak
- · Replies 7 ·
Negative/positive magnetic field?
- 2h2o
- · Replies 4 ·
Why doesn't angular acceleration times time give revolutions for a slowing fan?
- valeriex0x
- · Replies 7 ·
Are You an Inertial Observer on a Constantly Moving Turntable?
- Jadenag
- · Replies 1 ·
Mass of cylinder with falling stone wrapped around rim
- valeriex0x
- · Replies 2 ·
What Are the Individual Masses of Silver and Gold Used to Convert Ice to Steam?
- horcruxes
- · Replies 2 ·
How Much Heat is Needed to Vaporize Ethyl Alcohol from -50°C to Boiling Point?
- format1998
- · Replies 3 ·
How Thick Should Spider Silk Be to Hold Spiderman?
- mattyc33
- · Replies 3 ·
Speed of Objects Rolling and Sliding Down a Hill
- valeriex0x
- · Replies 6 ·
Rocket launches up starting from zero, conservation momentum
- ex81
- · Replies 5 ·
Deriving the Minimum Tension for a Particle on an Inclined Plane
- Jadenag
- · Replies 4 ·
Root-mean-square speed of an O2 gas
- format1998
- · Replies 4 ·
What Is the Centripetal Acceleration and Tension in a Swinging Bucket?
- roarono
- · Replies 3 ·
How Is the Refractive Index of Liquid A Determined?
- dalcde
- · Replies 8 ·
Two rotating disks, angular speed and kinetic energy question.
- rover_dude
- · Replies 15 ·
Racecar Statics and Mechanics of Solids problem
- hks118
- · Replies 2 ·
How Much Gas Leaked from the Tank?
- format1998
- · Replies 5 ·
What Is the Final Vertical Velocity Component of the Ball?
- scbeturner
- · Replies 25 ·
How to Determine the Magnetic Field in a Hanging Rod Problem
- Heath90
- · Replies 8 ·
Electric field between electrodes of half-filled spherical capacitor
- sodaboy7
- · Replies 1 ·
Block Tipping Over [Torque and Forces]
- fobbz
- · Replies 1 ·
We did a lab in class to compare W and KE
- apaxapax
- · Replies 4 ·
Final Kinetic Energy and speed of three projectiles fired from a building's roof
- matthew_phys
- · Replies 3 ·
What is the acceleration of the garden roller given certain parameters?
- PhDorBust
- · Replies 1 ·
Finding crystal plane spacing with Bragg's law
- roam
- · Replies 3 ·
* *Damped Harmonic Motion (Differential Equations)
- acedeno
- · Replies 1 ·
Deriving an equation through a free body diagram
- xgdoyo
- · Replies 1 ·
How Old is the Rock with a 3:1 Ratio of 207Pb to 235U?
- roam
- · Replies 2 ·
Force on a roof from tornado wind using Bernoulli's equation
- adlibitum
- · Replies 1 ·
Kinematics questions: Understanding Time and Displacement Relationships
- Vhsmith37
- · Replies 5 ·
Find initial velocity using rate of climb
- Rebecca_M
- · Replies 3 ·
Simple Harmonic Motion of spring
- hotspurslover
- · Replies 1 ·
Angular momentum problem (ball sticking to one end of a see saw)
- Storm Butler
- · Replies 1 ·
Electric field at midpoint between electron and proton
- Keegs32
- · Replies 4 ·
Understanding Direction Vectors in Vector Geometry
- kougou
- · Replies 1 ·
What Is the Acceleration of a Mass in Simple Harmonic Motion?
- physgrl
- · Replies 4 ·
Kinematics problems with constant acceleration
- gabez
- · Replies 2 ·
Maximum height of baseball, given total flight time.
- JP123
- · Replies 3 ·
4 home work problems over projectile motion
- man on fire
- · Replies 6 ·
Damping constant and angular frequency
- bacon
- · Replies 1 ·
Minimum Coefficient of Friction calculation using Centripetal force
- swag
- · Replies 3 ·
Cannon Recoil and Initial Velocity
- Koi9
- · Replies 7 ·
Velocity and Speed: Diagrams for Rowing Downstream and Southeastward
- C42711
- · Replies 1 ·
What is the missing angle using Law of Cosines?
- C42711
- · Replies 1 ·
Rotational Kinematics Time Problem
- whoopie88
- · Replies 1 ·
How Can I Design a Vehicle to Win a King of the Hill Engineering Challenge?
- JJBladester
- · Replies 7 ·
Falling particle with quadratic air resistance
- Vandella
- · Replies 25 ·
Conservation of energy and string pulley problem
- gunster
- · Replies 2 ·
Conceptual question on Simple Harmonic Motion.
- JustinLiang
- · Replies 1 ·
Designing a TM for a Language: ai bj ck
- yorkhuman
- · Replies 1 ·
Not calc based tangential and angular acceleration
- darlagatsch
- · Replies 3 ·
Coeficient of Kinectic friction question
- Shanetm
- · Replies 11 ·
Electrical Power - Equation Questions:
- I-need-help
- · Replies 6 ·
Calculate Pressure Ratio of Helium and Argon with Equal Mass at Same Temperature
- Termodinamica
- · Replies 27 ·
Elastic Collision: Find the Centre of Mass
- Quantumcom
- · Replies 2 ·
Finding Vottage and Current Values in a Circuit
- ana111790
- · Replies 15 ·
Calculating Maximum Work from Cooling Liquid Reversibly
- phizzle86
- · Replies 1 ·
Calculating Magnetic Field from Two Perpendicular Currents
- blackbyron
- · Replies 4 ·
Angular velocity from diving board
- lalahelp
- · Replies 3 ·
Momentum/Conservation of Energy problem.
- Sefrez
- · Replies 3 ·
Angular acceleration and force with constant angular velocity?
- cloudboy
- · Replies 6 ·
Projectile Motion Problem - Solving for Alpha and Maximum Distance
- PhDorBust
- · Replies 2 ·
What force acted on the bullet while it was moving down the barrel?
- lch20yy
- · Replies 2 ·