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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Water level change for melting ice cube
- kumarakrishnavaleti
- · Replies 4 ·
Electron enters magnetic field at 5000V -- What's the radius?
- AlexPilk
- · Replies 14 ·
Does the presence of a sound box affect the duration of a tuning fork's sound?
- mystreet123
- · Replies 3 ·
Inclined Plane Problem-- Solving for Theta
- drdevil52
- · Replies 2 ·
Will an applied force cause rotation about axis M-N?
- peter010
- · Replies 4 ·
Relative Velocity (Man walking in rain question)
- kipup123
- · Replies 4 ·
Finding points where moment is zero using Varignon's theorem
- nothingsus
- · Replies 1 ·
Question regarding the output for AC circuit with capacitors
- karan000
- · Replies 7 ·
Finding relativistic mass and energy of an electron
- AlexPilk
- · Replies 14 ·
What Object Distance Ensures a Real Image in Geometrical Optics?
- ak127a
- · Replies 6 ·
Circular Wave Fronts Emitted by Two Wave Sources
- CentrifugalKing
- · Replies 13 ·
How to Convert Capacitance in cm to Farads for a Transmission Line Experiment?
- danmel413
- · Replies 4 ·
Time of oscillation of a pendulum
- diredragon
- · Replies 4 ·
What Forces and Motions Govern a Yo-Yo's Movement When Pulled to Stay in Place?
- Karol
- · Replies 4 ·
Index of when refraction/optics question
- Gino97
- · Replies 1 ·
Non-uniform electric field flux through a cube
- WrongMan
- · Replies 14 ·
Power for accelerating a ski lift
- Mqqses
- · Replies 7 ·
Can an object be in equilibrium if it is in motion?
- linhison
- · Replies 3 ·
Bouncing ball and Doppler effect
- Soren4
- · Replies 5 ·
Problem about Hagen-Poiseuille law and pump
- Soren4
- · Replies 15 ·
How to Calculate Forces on a Plank with a Weight?
- vellagtr
- · Replies 8 ·
How Do You Calculate the Dynamics of a Mass Suspended from a Flywheel?
- SWINEFLU
- · Replies 5 ·
Getting frequency from angular momentum?
- deathkamp
- · Replies 14 ·
Calculating Normal Forces on a Wooden Stick Supported by Two Chairs
- diredragon
- · Replies 1 ·
Dimensional Analysis Pendulum Equation
- khaledS
- · Replies 2 ·
Normal acceleration of a horizontally thrown ball after 1 second
- diredragon
- · Replies 13 ·
How Is the Amplitude of a Membrane's Oscillation Determined by Sand Jumping?
- cdummie
- · Replies 12 ·
Allowed momentum values for a plane wave
- alec_grunn
- · Replies 3 ·
Final Frequency and Kinetic energy change?
- deathkamp
- · Replies 4 ·
Spherical Shell using Gauss' Law
- kgleeso
- · Replies 2 ·
Interference in Thin Films: Grade 12 Optics Review
- EmilyBergendahl
- · Replies 4 ·
Motion On An Off Center Circle In Polar Coordinates
- duran9987
- · Replies 9 ·
Calculate height and velocity given kinetic and potential?
- JohnDoe624
- · Replies 2 ·
How Do Phase Speed and Maximum Particle Speed Compare in a Transverse Wave?
- diredragon
- · Replies 5 ·
Circular loop in magnetic field
- johnknee
- · Replies 6 ·
How can a lateral wind gust create a lateral acceleration?
- AntoineCompagnie
- · Replies 15 ·
Equipotential surface magnetic field
- Maike
- · Replies 2 ·
How Do You Determine the Direction of an Electric Field?
- Balsam
- · Replies 11 ·
Minimum Vo for a hoop to get to the top
- Cleo James
- · Replies 3 ·
Potential of charged and uncharged conductor
- Vibhor
- · Replies 16 ·
Calculating the loss of Potential Energy of water in turbine
- TiernanW
- · Replies 7 ·
How Does the Inverse Square Law Apply to Calculating Distances Between Charges?
- Tangeton
- · Replies 15 ·
Optics of the magnifying glass
- Firye Stanly
- · Replies 3 ·
Calculating the resistance between 2 terminals of circuit
- TiernanW
- · Replies 9 ·
Why can't I find wedge acceleration using only F=ma for the wedge?
- AStudentNeedsHelp
- · Replies 3 ·
What is the Explanation for the Interference Pattern in Thin Soap Films?
- EmilyBergendahl
- · Replies 12 ·
Calculate Tension in the String
- Balsam
- · Replies 24 ·
Introducing Local Charge to Conductors?
- Balsam
- · Replies 2 ·
A simple Proper Time Calculation
- unified
- · Replies 4 ·
Finding initial kinetic energy from maximum height of a thrown ball
- NatalieWise123
- · Replies 8 ·
Understanding Angular Velocity Calculations for Rotating Objects
- Nikstykal
- · Replies 2 ·
When should I use the instantaneous center method for gear problems?
- Nikstykal
- · Replies 3 ·
Understanding the Effects of Dielectrics on Capacitance: A Scientific Approach
- RoboNerd
- · Replies 6 ·
Double slit slit separation using bright fringe formula
- EmilyBergendahl
- · Replies 6 ·
Can someone explain the negative sign in the capacitance formula?
- James2288
- · Replies 2 ·
Newtonian Mechanics: simultaneous equations
- Medtner
- · Replies 3 ·
Alternative form of Reynold's number
- foo9008
- · Replies 11 ·
What is the Thevenin resistance in this circuit with a changable resistor?
- diredragon
- · Replies 6 ·
Calculating Pressure in Pipes: How to Solve for Unknown Entrance Pressure?
- foo9008
- · Replies 3 ·
When does a larger voltage result in a greater current?
- Mycelium
- · Replies 4 ·
Identify Gas Based on Specific Heat Formula and Universal Gas Constant R
- Firye Stanly
- · Replies 1 ·
Why Are There Only 3 Pi Groups in Dimensional Analysis?
- foo9008
- · Replies 2 ·
Maximum angle of the refracted light beam
- Tardis Traveller
- · Replies 3 ·
Electrical power of a lightbulb
- Firye Stanly
- · Replies 2 ·
Kinetic Energy and Collision Question
- bebop1
- · Replies 2 ·
Number of emitted photons per second
- Coldslooks
- · Replies 2 ·
Projectile hitting the incline plane horizontally
- Saurav7
- · Replies 7 ·
Limiting values of x for particle under force
- MikeN
- · Replies 2 ·
Contact Force with two masses given
- lexikobie
- · Replies 4 ·
Deceleration and Acceleration: Opposites or One and the Same?
- Balsam
- · Replies 1 ·
Motion of a block on a steep surface
- diredragon
- · Replies 4 ·
Frictionless Inclined Plane, solve for acceleration
- lexikobie
- · Replies 7 ·
Cork flying into air, only acceleration and total time
- eric_cravin
- · Replies 4 ·
What is the value of y in this water tank pressure problem?
- foo9008
- · Replies 3 ·
Modeling Forced Oscillations with Viscous Damping and External Force
- qasbrv
- · Replies 8 ·
Simple harmonic motion (with calculus)
- AdrianVr
- · Replies 7 ·
Maximum kinetic energy lost in a collision between two objects?
- bebop1
- · Replies 4 ·
Force formula with ρ(L²)(v²) and ρ(L³) discrepancy
- foo9008
- · Replies 8 ·
General equation of velocity along the pipe
- foo9008
- · Replies 3 ·
A small solid sphere of mass M0, of radius R0, and of unifor
- Spartan73
- · Replies 3 ·
A solid cylinder of uniform density of 0.85 g/cm3 floats in
- Spartan73
- · Replies 2 ·
Why does the second ionization energy of helium scale with Z²?
- physicsmaths1613
- · Replies 4 ·
Does a sphere roll without slipping during impact with an incline?
- PhMichael
- · Replies 3 ·
How Is Work Calculated on a Box Moving Up a Frictionless Ramp?
- nothingsus
- · Replies 3 ·
What is the K value for a pipe transition between two different diameters?
- ipocoyo
- · Replies 6 ·
The Diffraction Grating (Grade 12 Physics)
- EmilyBergendahl
- · Replies 1 ·
Static Equilibrium Pulley Problem
- Sixth42
- · Replies 2 ·
Work done by gravity on inclined planes at different angles
- nothingsus
- · Replies 7 ·
Solving Circuit with Ideal Ammeter: 4.0 Ohm Resistance
- Abysmaltan
- · Replies 2 ·
Work and the Frictional Force (Grade 12 Physics)
- EmilyBergendahl
- · Replies 23 ·
Effective Resistance between 2 points
- Abysmaltan
- · Replies 26 ·
Work done raising an object. Calculus needed.
- knownothing
- · Replies 3 ·
Spring System in a Tower: Analysis and Calculations
- Karol
- · Replies 15 ·
Does electric fields affect a compass
- ikonic
- · Replies 4 ·
Electric Potential Difference during thunder storm
- EmilyBergendahl
- · Replies 12 ·
Finding wavelength and distance between points on a wave
- Soren4
- · Replies 3 ·
Can I Convert Volts to Electron Volts in Photoelectric Effect Calculations?
- prehisto
- · Replies 1 ·
A Simple Harmonic Motion Question
- Nipuna Weerasekara
- · Replies 21 ·
Angular Speed and Kinetic energy
- deathkamp
- · Replies 13 ·
Archived Mechanical Efficiency of a Ramp
- iRamie
- · Replies 5 ·