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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Object floating on water with oil poured in
- happysmiles36
- · Replies 13 ·
Direction of oscillation of wave
- somecelxis
- · Replies 1 ·
Why doesn't the inside of a conducting cup transfer charge?
- mattwkeller
- · Replies 13 ·
Sig Fig: Calculate (.82+.042)(4.4*10^3) - 3800
- cuj93
- · Replies 8 ·
How Do You Apply the Mesh-Current Method Correctly in Circuit Analysis?
- orangeincup
- · Replies 1 ·
A shell is fired vertically upwards
- DriggyBoy
- · Replies 5 ·
Beers Law and Colorimetry Problems
- Blockmeister
- · Replies 7 ·
Minimizing F2 in a 2D force resultant problem with three unknowns
- Ockham
- · Replies 11 ·
Some funny theoretical tasks, classical physics
- (N)amber
- · Replies 3 ·
Equivalent resistance with a short circuit
- sun18
- · Replies 2 ·
Why does water offers less friction?
- Kaustubh sri
- · Replies 20 ·
Projectile motion submarine missle problem
- narutoish
- · Replies 13 ·
How to Convert Units to Solve Collision Force Problems?
- leandro_fl
- · Replies 1 ·
Finding velocity and acceleration of a point on a decelerating wheel
- lukatwo
- · Replies 3 ·
Node Voltage Method: Solve for v0 in Circuit
- orangeincup
- · Replies 5 ·
Find Min Force on Particle 3 with q1,q2,q3 Charges
- derek181
- · Replies 5 ·
Why is the direction of reflected light different from that of refracted light?
- somecelxis
- · Replies 7 ·
Centripetal force and water in a Bucket
- Jimmy87
- · Replies 4 ·
Graphing Displacement Difficulties
- dumakey1212
- · Replies 2 ·
Calculating Flux on a Rubik's Cube with a Point Charge at the Center
- ab23
- · Replies 1 ·
Why does P = F·v give twice the power for a fire hose stream?
- CeilingFan
- · Replies 3 ·
To find the current through an inductance in an AC circuit.
- AakashPandita
- · Replies 23 ·
Finding speed of water leaving a pressurized vessel
- reed2100
- · Replies 1 ·
Force applied to both sides of a spring. What is the net compression?
- Hereformore
- · Replies 2 ·
Comparing work done lifting a rock vs pushing a table
- jacknife
- · Replies 13 ·
Dielectric slab with a uniform field
- physiks
- · Replies 5 ·
Dissipated energy in RC circuit
- Breston
- · Replies 7 ·
Intensity of single slit and double slit problem
- desmond iking
- · Replies 6 ·
Density change of an object with mass
- sudipmaity
- · Replies 7 ·
Children's Slide, given slide length and angle, solve speed at bottom
- speedtriple
- · Replies 8 ·
Physics Project using finite method?
- tinker99
- · Replies 3 ·
Projectile motion with drag trouble
- Luchekv
- · Replies 13 ·
No load voltage / resistance question
- orangeincup
- · Replies 3 ·
Joule Heating of Metals with Different Resistivities
- steve1221
- · Replies 3 ·
What is the formula for calculating steel rod bending in a mouse trap?
- May
- · Replies 8 ·
Deriving Equation Relating Angle of Incidence to the Angle of Refracti
- frozonecom
- · Replies 6 ·
Why Does the Particle Not Move in the +x Direction at t = 0.13351 Seconds?
- inversesine
- · Replies 1 ·
Length contraction: 20 m stick at 0.9c behind 10 m building
- kostasdb
- · Replies 7 ·
Relative velocity of plane with vectors
- Yae Miteo
- · Replies 2 ·
How Do I Correctly Calculate Height Over Time for an Object on a Ramp?
- mastermind1
- · Replies 5 ·
Inteferenxce pattern of air wedge
- somecelxis
- · Replies 6 ·
Finding multiple zeros of v(t)=-40/3*cos(3/2*t)-5.129
- eHoaX
- · Replies 3 ·
What is the final velocity of the golf ball before it lands?
- fedora
- · Replies 1 ·
Finding Max Velocity For Simple Harmonic Spring problem?
- hongiddong
- · Replies 11 ·
Determine the electric charge "in the earth"
- Feodalherren
- · Replies 13 ·
Solving y-y0 = v0*t + (1/2)*a*t^2 for t
- raddian
- · Replies 10 ·
Proof on a uniqueness theorem in electrostatics
- ELB27
- · Replies 2 ·
What is the Extension Produced in Springs Arranged in Series and Parallel?
- timeheist
- · Replies 1 ·
Projectile Motion find the highest angle
- kukumaluboy
- · Replies 7 ·
Electric potential of a charged shell- Self potential?
- Adithyan
- · Replies 6 ·
Solving Acceleration Problem: Find a3 Differently
- varunKanpur
- · Replies 1 ·
Hello I have a question on angular velocity
- tinothynguyen
- · Replies 5 ·
Finding source current of a circuit
- orangeincup
- · Replies 7 ·
Relativistic mechanics:circle becoming ellipse.
- sudipmaity
- · Replies 1 ·
Resistance and Variation of Current in a Gradually Narrowing Ohmic Wire
- bennyq
- · Replies 1 ·
How to Calculate Temperature Change in Ideal Gas Law Problem for One Mole?
- dk_ch
- · Replies 13 ·
What Is the Required Sag Distance for a Safe Tyrolean Traverse?
- END
- · Replies 5 ·
Density of water using bulk modulus
- toothpaste666
- · Replies 13 ·
Calculating Angular Velocity and Energy Dissipation After Collision and Rotation
- Breston
- · Replies 6 ·
Determine acceleration of gravity through experiment?
- Henrybar
- · Replies 7 ·
(Relativity) Space Time Interval
- ak345
- · Replies 2 ·
Trying to find equations to use for calculation of initial speeds
- BeanBolta
- · Replies 3 ·
Displacement, Average Speed, and Average Velocity
- person100
- · Replies 1 ·
Confusion with train collision with constant acceleration
- Petterandre
- · Replies 1 ·
Solve Diving Bell Problem: Find Height of Water Rise in Bell
- d_morales97
- · Replies 1 ·
Kinetic Energy Gain due to Coulomb Force
- quantumfoam
- · Replies 1 ·
AP Physics Problem - Highway between two cities
- zud3652
- · Replies 3 ·
Efficiency, Stirling heat engine
- dave84
- · Replies 3 ·
Elastic Collision of Blocks on a Half-Pipe: How to Determine the Final Heights?
- fightboy
- · Replies 2 ·
Lorentz transformations (time dilation)
- Ascendant78
- · Replies 2 ·
Lorentz transformations losing on both sides
- Ascendant78
- · Replies 4 ·
(Special relativity) Binomial Approximation
- ak345
- · Replies 3 ·
Point charge at center of square to balance four corner charges
- ommmmm
- · Replies 3 ·
Triboelectric effect and chemical reaction
- simplescience
- · Replies 1 ·
Force of attraction between induced charges
- simplescience
- · Replies 9 ·
Lorrentz velocity transformation
- Mangoes
- · Replies 4 ·
Why Does a Dielectric Slab Experience Force When Fully Inserted in a Capacitor?
- albega
- · Replies 3 ·
Magnitude of electric field with square loop
- py208
- · Replies 1 ·
Car crash distance using system of equations
- SPhy
- · Replies 10 ·
Direction of Resultant Displacement
- mbaha
- · Replies 1 ·
Which Current Direction Consistent with Potential Difference in Coil?
- bennyq
- · Replies 1 ·
Given a box contain 50m3 of gases, how fast should I pump gases into?
- td21
- · Replies 3 ·
Distance from arbitrary shape so we can treat it as a point charge
- oddjobmj
- · Replies 3 ·
Finding average density of Earth's layered model
- toothpaste666
- · Replies 5 ·
Projectiles launched at an angle question
- SmallPub
- · Replies 4 ·
Finding the charge when three charges are in equilibrium
- johnsch3
- · Replies 5 ·
Does a bullet or falling block hit the ground first?
- vikilla
- · Replies 1 ·
Find the potential at a point: contradiction with teacher
- BiGyElLoWhAt
- · Replies 3 ·
Get magnetic field if you know electric current
- skrat
- · Replies 15 ·
Electric Field and Magnitude Problem
- pstir2
- · Replies 2 ·
When Do Two Stones Meet in the Air?
- Matthematic
- · Replies 9 ·
How Does Refraction Affect Visibility in a Fluid-Filled Container?
- lioric
- · Replies 2 ·
Detecting Jupiter-like Planets Using the Doppler Effect
- adgar
- · Replies 1 ·
Bound surface charge - hollow tube
- Roodles01
- · Replies 2 ·
Vectors: Average Velocity, Acceleration, Speed
- END
- · Replies 3 ·
Heat in a resistor (circuit with inductor and capacitor)
- Rugile
- · Replies 7 ·
Advanced One Dimensional Kinematic Problem
- LexRunner
- · Replies 7 ·
How Does Stretching a Polymer Relate to Hooke's Law?
- CottonHill
- · Replies 1 ·
How do I add vectors using geometric and component-wise methods?
- Jtechguy21
- · Replies 7 ·