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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Mechanics - marble rolling in dish
- micromass
- · Replies 29 ·
Latent Heat and conservation of energy
- rico22
- · Replies 6 ·
The First Law of Thermodynamics
- rico22
- · Replies 2 ·
Calculate the kinetic energy of an electron with a wavelength of 1fm
- richyw
- · Replies 1 ·
Find effective resistance using kirchoff's laws
- brushman
- · Replies 4 ·
Finding the weight supported by two angled wires at 60° and 45°
- zeshkani1985
- · Replies 10 ·
Electric field at a distance from a charged disk
- kb1408
- · Replies 11 ·
Conservation of Momentum Question.
- skg94
- · Replies 6 ·
Escape Velocity Calculation for a Spaceship in Space
- athymy
- · Replies 4 ·
Finding k in the Avrami equation for 2D crystal growth using an inflection point
- Stat313
- · Replies 21 ·
Calculating molar specific heat capacity - not a monatomic gas
- PhysicsFriend
- · Replies 1 ·
Change in magnitude of radial acceleration
- alexmahone
- · Replies 1 ·
Boat crossing/Glide Ratio/Hydraulic design
- zeshkani1985
- · Replies 17 ·
Brachistochrone Differential Equation
- Bennigan88
- · Replies 2 ·
What is the Average Pressure on an Apple During Impact?
- nhmllr
- · Replies 2 ·
Explain in fragmented way 1-methylstyrene's spectrum
- chem5
- · Replies 1 ·
Angular Momentum and Point of Application in Rolling Motion
- PhizKid
- · Replies 6 ·
Reduce the amount of kinetic energy loss in a collision
- fdajkffk
- · Replies 1 ·
Perception of apparent (seeming) motion
- ShiPe
- · Replies 12 ·
Atwood machine pulley inertia and ice-water equilibrium
- anuragpapineni
- · Replies 1 ·
What is the concept of equivalent resistance in electrical circuits?
- Ezio3.1415
- · Replies 8 ·
Equilibrium and Statics involving a mass attached to three strings
- alingy1
- · Replies 4 ·
Finding sound frequency for echo with single slit diffraction
- athymy
- · Replies 1 ·
How Do You Determine the Maximum Distance from Base Camp Using Vector Addition?
- renergy
- · Replies 11 ·
How much force is 5T of pressure exerted by a hydraulic ram?
- davekardle
- · Replies 1 ·
Potential Energy during Constant Velocity Motion
- hgfhh123
- · Replies 2 ·
Effect of earth's rotation on an object on the surface
- timarli
- · Replies 4 ·
Banked Curves and Static Frictional Components
- Starwing123
- · Replies 2 ·
Car on a banket - maximum speed formula derivation
- timarli
- · Replies 2 ·
The easiest derivation of rod's moment of inertia?
- Glyper
- · Replies 2 ·
What is the correct component force along the axis of the hook?
- jgreen520
- · Replies 6 ·
Electronics - calculating voltages
- Adoniram
- · Replies 7 ·
Difference b/w uniform motion and velocity
- chikis
- · Replies 1 ·
Finding maximum height of object thrown upward with initial velocity
- Dude22
- · Replies 6 ·
Rolling Objects, Friction, and Newton's Second Law
- Starwing123
- · Replies 1 ·
Trouble calculating a projectiles height after a certain distance
- agm1984
- · Replies 27 ·
Gravity in the upper atmosphere
- hms.tech
- · Replies 13 ·
Circuit analysis potential difference
- hms.tech
- · Replies 10 ·
Volcano in mars ejects rocks. Straight line motion
- Toranc3
- · Replies 4 ·
Can the Picture Be Hung in a Stable Equilibrium?
- arestes
- · Replies 18 ·
Notation of permittivity in farads per meter question
- KClose1983
- · Replies 2 ·
Potential Energy of a System of charged particles
- sniper_spike
- · Replies 6 ·
Scaling factor of a mass spring system
- mrcotton
- · Replies 5 ·
Projectile fired at 40° from 40 m height hits ground at 1.4v
- v1ru5
- · Replies 7 ·
Max Impact of Free-Falling Bomb on Target
- Numeriprimi
- · Replies 1 ·
What characterizes coil springs?
- alingy1
- · Replies 2 ·
Questions in Newtons Laws and Thermodynamimcs.
- nasar176
- · Replies 3 ·
Will Two Synchronized Atomic Clocks Remain in Sync After One Year?
- Lauren12
- · Replies 1 ·
The working of an electric motor and generator
- ASidd
- · Replies 4 ·
Sound Intensity and Threshold of hearing
- gomess
- · Replies 3 ·
Bernoulli's Equation (Water Outflow Speed of Tank)
- Von Neumann
- · Replies 2 ·
Free electrons in solid sphere of copper
- CAF123
- · Replies 17 ·
The direction of proton in a magnetic field
- ASidd
- · Replies 1 ·
Clarification of Black Body Radiation
- Minki
- · Replies 2 ·
Why does an elevator move upward with zero net force?
- quicksilver123
- · Replies 4 ·
Calculating Power and Tension for Lifting a Boat on an Incline
- davekardle
- · Replies 6 ·
N-Body Problem - Initial Values
- physxfreak
- · Replies 4 ·
How Do You Write the Function for a Traveling Wave on a String?
- Renaldo
- · Replies 8 ·
Proton-Proton Interaction at Minimum Separation
- f25274
- · Replies 9 ·
How to Calculate the Shortest Chain Sling Length for Lifting a Bin?
- crashdirty86
- · Replies 5 ·
Special Relativity pion decay problem
- Nate D
- · Replies 5 ·
Magnetic field far from a solenoid
- jaumzaum
- · Replies 2 ·
Applying force to a flat object with contact points
- santeri
- · Replies 4 ·
I really with a MATLAB iteration code
- physicist10
- · Replies 1 ·
Determining energy delivered from critical angle
- enc08
- · Replies 1 ·
Calculating Terminal Velocity of a Free Falling Body with Air Resistance
- aeb2335
- · Replies 1 ·
Colour of light producing photoelectrons?
- Lauren12
- · Replies 8 ·
1D Kinematics - Integration of the Equations of Motion
- bearjew11
- · Replies 3 ·
Power problem, to use net force or work energy theorem?
- deblimp
- · Replies 3 ·
Swing with initial velocity and displacement: find θ(t)
- Stealth849
- · Replies 11 ·
Can Wally Whacko's Heat Engine Truly Achieve 92% Efficiency?
- chipM
- · Replies 12 ·
Similarities and differences between magnetic and electrostatic forces
- diane1996
- · Replies 4 ·
Finding center of gravity of a wheelbarrow with a 1,050 N load
- joel amos
- · Replies 3 ·
Solution to Momentum Principle Problem
- C R P
- · Replies 6 ·
Moments - Balancing a weighted meter stick
- alexmahone
- · Replies 3 ·
Calculating turns in a primary coil of a transformer
- Bobazoide
- · Replies 2 ·
Splitting Comet Momentum Problem Solutions
- kariibex
- · Replies 4 ·
What causes the normal force to increase in circular motion?
- ShizukaSm
- · Replies 1 ·
Using a cube as a Gaussian surface
- anban
- · Replies 2 ·
What is the pressure and volume of gas in different states?
- asheik234
- · Replies 2 ·
Find the natural frequency of a spring
- physicist10
- · Replies 9 ·
Kinematics Problems: Calculating Time and Displacement for Moving Objects
- phospho
- · Replies 5 ·
How Does Friction Affect the Acceleration of Stacked Blocks?
- vjnmath
- · Replies 1 ·
Pedagogical machine acceleration when force is 0
- PhizKid
- · Replies 11 ·
Relationship of W and v in a region of uniform magnetic field
- e.pramudita
- · Replies 2 ·
Thermal conduction between difference surfaces
- sgstudent
- · Replies 6 ·
Plot Orbit using Orbital Elements: 2D Analysis
- Brazil_Physic
- · Replies 1 ·
How to work out frictional torque
- lew123189
- · Replies 37 ·
What is the Equivalent Resistance in a Series Circuit?
- Dr.Phy
- · Replies 9 ·
Solving for Flux Using Enclosed Charge
- InertialRef
- · Replies 3 ·
Finding magnitude and direction of net torque on a dipole
- ick84
- · Replies 1 ·
Finding units of constants using dimensional analysis
- Nirupt
- · Replies 3 ·
Using Equations for Constant Acceleration- Vertical Motion of a Bullet
- L_0611
- · Replies 1 ·
Escape velocity of solar system
- oldspice1212
- · Replies 4 ·
What Are the Angular Frequency and Amplitude of a Particle Undergoing SHM?
- NewtonsHead
- · Replies 5 ·
How Does Damping Affect Oscillation Amplitudes in Dual-Frequency Systems?
- schaefera
- · Replies 1 ·
Unit Vector Magnitudes and Forces
- nobodyuknow
- · Replies 5 ·
Find the energy lost at the collision and the average force of friction
- fdajkffk
- · Replies 3 ·
Net force on a charge from two other charges using Coulomb's law
- riseofphoenix
- · Replies 10 ·
Does tilting a cylindrical cup of tea show a circle, parabola, and ellipse?
- 3.141592
- · Replies 10 ·