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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Find the Current Through a Resistor with a Constant Current Source
- drumercalzone
- · Replies 7 ·
Is this calculation correct for v = 2πfA ?
- ElectricJesus
- · Replies 2 ·
Equillibrium of electrostatic forces of 2 charges on a 3rd
- afulldevnull
- · Replies 3 ·
How Does Air Pressure Affect the Range of Alpha-Particles?
- wulmazboy
- · Replies 3 ·
How can the man stay in balance with a rope?
- khuko
- · Replies 14 ·
How long until the ball hits the ground?
- hyde2042
- · Replies 4 ·
Potential difference between charges +q and -q separated by distance R
- Highwaydude
- · Replies 4 ·
Does mass affect the period of oscillation on a spring?
- Peter G.
- · Replies 7 ·
Pion decay to muon and neutrino: finding pion mass
- davidpotts
- · Replies 2 ·
Calculating Linear Change in MgO Under 100 MPa Stress
- thephysicsman
- · Replies 1 ·
Converting 4163 kJ/mol to kJ/litre using molar mass
- clintyip
- · Replies 9 ·
Are Momentum Equations Different for Elastic and Inelastic Collisions?
- Hanga
- · Replies 2 ·
Projectile Motion or Motion in Two dimension
- Myung
- · Replies 3 ·
What speed must the ball be thrown
- 1MileCrash
- · Replies 20 ·
Free falling body after certain height
- lase
- · Replies 8 ·
Wavelength - Yellow line in the spectrum of a sodium lamp
- mstud
- · Replies 2 ·
How do I find missing terms in kinematic equations?
- cneedshelp
- · Replies 12 ·
Calculating Potential Energy of a Spring System without Gravity
- greencleaner
- · Replies 4 ·
Equilivant Resistance with Source
- dhens43
- · Replies 1 ·
E field from two charges at origin and 8m
- pyroknife
- · Replies 7 ·
Time when car stopped given initial velocity and acceleration
- 1MileCrash
- · Replies 9 ·
Man on a Flatbed: Inertia Prediction
- littlesohi
- · Replies 1 ·
Do Bullets Fired Upwards Pose a Risk When They Return to Earth?
- latentcorpse
- · Replies 4 ·
What is the critical angle and area for light at a water and air interface?
- mogley76
- · Replies 1 ·
Simple Harmonic Motion - Acceleration and Time Period
- ProPM
- · Replies 3 ·
Find vector components when adding and subtracting two vectors
- littlesohi
- · Replies 1 ·
Production of the bremsstrahlung
- nousername
- · Replies 1 ·
Where does this equation come from?
- hermano
- · Replies 2 ·
Why does an X-ray tube have both tungsten and copper anodes?
- nousername
- · Replies 4 ·
Calculating 3D Component Vectors and Resultant Force for Inclined Forces
- yhumei
- · Replies 2 ·
Finding landing coordinates for spinning ball with rotational kinetic energy
- anmanc
- · Replies 7 ·
Figuring out time when you have acceleration and distance.
- cneedshelp
- · Replies 2 ·
Acceleration of a falling object at specific times
- cneedshelp
- · Replies 5 ·
Acceleration equations involving time.
- cneedshelp
- · Replies 5 ·
How Do You Construct Shear and Moment Diagrams for a Frame Beam?
- jtpijnenburg
- · Replies 1 ·
What is the wavelength of the radiation emitted at transition 3?
- mstud
- · Replies 2 ·
Finding the distance at which Car 1 overtakes Car 2
- azadder
- · Replies 5 ·
Centripetal force motorcycle problem
- bulbasaur88
- · Replies 2 ·
Converting specific gravity to pressure in hydrostatic formula
- TyErd
- · Replies 11 ·
Determination of the wavelength of a spectral line
- mstud
- · Replies 2 ·
Speed at the top of a vertical loop-the-loop with normal force
- bulbasaur88
- · Replies 2 ·
Corrective lenses, power of the eye change
- DJ-Smiles
- · Replies 2 ·
Calculate Gravity Car Distance with 840g + x Weight
- PhyzWizKid
- · Replies 9 ·
Energy of an atom in an excited state
- mstud
- · Replies 1 ·
You are driving down the highway and you brake to avoid hitting a deer
- skysunsand
- · Replies 3 ·
Calculate Absolute Pressure with P = pgh
- TyErd
- · Replies 4 ·
Pipe and speed of sound question
- xtheunknown0
- · Replies 7 ·
Effect of elevator acceleration on spring-mass oscillation
- Peter G.
- · Replies 1 ·
RLC parallel circuit; fourier components
- mathman44
- · Replies 10 ·
Load voltage with shorted load / open load
- illidari
- · Replies 6 ·
Find where e-field is 0 question.
- pyroknife
- · Replies 6 ·
Prooving a projectile motion formula
- stonecoldgen
- · Replies 2 ·
Thermodynamics heat engine Question
- blackwing1
- · Replies 2 ·
Centripetal forces and satellites
- supmiller
- · Replies 2 ·
Solving Projectile Motion Equation from Physics 8e - Chapter 3 Page 70
- physkid1
- · Replies 8 ·
2D Kinematics - Finding Initial Velocity
- whoopie88
- · Replies 4 ·
Energy Test, need some extra revision
- BigMackey
- · Replies 6 ·
How Do You Solve for Variables in Algebraic Equations?
- xpaulinabearx
- · Replies 3 ·
Steel - Youngs Modulus, Poisson Ratio
- samirnasri
- · Replies 1 ·
Distance needed to survive a 150 km/h crash with airbag
- Faka
- · Replies 6 ·
Why Does the Integral for Pendulum Swing Time Diverge at Zero Velocity?
- LiorE
- · Replies 11 ·
Simplifying the Buckingham equation
- stevemilw
- · Replies 4 ·
Does the normal force on a table have a reaction pair?
- Peter G.
- · Replies 3 ·
What is the Total Force Exerted on a Vertical Dam by Water?
- bcfcdan
- · Replies 8 ·
Correct explanation of how gyroscope works?
- hyunwoo126
- · Replies 7 ·
Sound intensity and distance problem
- foobarbazzer
- · Replies 1 ·
How Do Different Wavelengths Affect Pulse Timing in Fiber Optics?
- mmanu
- · Replies 1 ·
Centre of Gravity of Multiple Crates
- joe465
- · Replies 10 ·
Central Force Field: Meaning of Centrifugal Term
- rob60
- · Replies 4 ·
Particle moving in an XY direction
- Saba Gaad
- · Replies 1 ·
Car displacement vector and lunar lander free fall problem
- Desecration
- · Replies 8 ·
Torque experienced by a current loop in uniform magnetic field
- logearav
- · Replies 13 ·
Graphing acceleration versus theta to find gravity
- channel1
- · Replies 10 ·
How to Study SHM with a Mass Between Two Springs?
- Ipos Manger
- · Replies 3 ·
Uniform circular motion, trapeze artists problem
- bulbasaur88
- · Replies 4 ·
Finding acceleration with Kinetic Friction coefficient
- phee
- · Replies 10 ·
Find the percentage of electrons were removed?
- blackbyron
- · Replies 2 ·
Torque friction on a rotating disk
- kudoushinichi88
- · Replies 8 ·
Confusion with Kirchhoff's Law in Circuit Diagram
- jforce93
- · Replies 7 ·
Why speed of the railroad hopper is the same? []
- amiras
- · Replies 13 ·
How to Determine the Current in This Circuit?
- W1z0
- · Replies 1 ·
Operation amplifier - inverting amplifier
- logearav
- · Replies 7 ·
Force between two long parallel current carrying conductors
- logearav
- · Replies 6 ·
Square of a wave function; way to understand
- Juqon
- · Replies 15 ·
Electric field, dipole moment and potential energy of two point charges
- bmarson123
- · Replies 9 ·
What equations do I need for a power consumption problem?
- TyErd
- · Replies 5 ·
Total Mechanical Energy: Mass or No Mass?
- TyErd
- · Replies 4 ·
Uniform circular motion, earth's rotation
- bulbasaur88
- · Replies 2 ·
Flowerpot passing window kinematics problem
- razrsharp67
- · Replies 12 ·
Height of ramp given normal force in circular loop
- mastergaurang
- · Replies 1 ·
Constant Velocity (Finding when 2 objects will intersect)
- davyvfr
- · Replies 4 ·
Normal Force acting on tries of a go-cart
- Hanga
- · Replies 9 ·
Basic electronics problem with an amplification factor for a transistor
- Femme_physics
- · Replies 25 ·
Calculating the work done to bring charges together
- NewtonianAlch
- · Replies 6 ·
Path of a Balloon Tied to a Thread
- Cromptu
- · Replies 8 ·
Maxwell's Equations - State what arbitary fields describe.
- bmarson123
- · Replies 7 ·
Conservation of momnetum or Newtons second law?
- vkash
- · Replies 3 ·
Calculating voltage within a capacitor
- NewtonianAlch
- · Replies 2 ·
What formulas do I need and how do I work out the height?
- BobbyJones
- · Replies 12 ·
Shear Force and Moment Diagrams
- TyErd
- · Replies 6 ·