Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
Threads
Archived Calculus for delta function based on wave function
- sandf
- · Replies 1 ·
Question about induction cooker
- Clara Chung
- · Replies 6 ·
Understanding KVL Equations for Circuit Analysis
- Tiziano
- · Replies 3 ·
What Is the Vertical Force at the Elbow Joint?
- annanause
- · Replies 1 ·
Angle for Static Position of Block 1 and Movement of Block 2
- rashida564
- · Replies 11 ·
How do I understand this gear diagram?
- Navier-Stokes
- · Replies 3 ·
Muscle tension required to lift a child at a constant speed
- annanause
- · Replies 9 ·
Periodic table - certain no. of atoms in the 1st 4 rows
- Ags Ivana
- · Replies 1 ·
Calculating saturation and dew point given pressure and temperature
- InquisitiveOne
- · Replies 4 ·
Time taken for two relativistic particles to meet
- phosgene
- · Replies 5 ·
Current through voltmeter and ammeter
- ravsterphysics
- · Replies 2 ·
Analyzing the Effect of a Broken Lamp on Current Distribution in a Circuit
- ravsterphysics
- · Replies 3 ·
Peak rectifier - conduction interval
- theBEAST
- · Replies 4 ·
Coupling of angular velocities
- TubbaBlubba
- · Replies 20 ·
Measuring the period of SHM using sound
- Seanywil
- · Replies 1 ·
Induced EMF in a circle: Faraday's law
- Biker
- · Replies 11 ·
How does one find the time dependent wavefunction?
- tumconn
- · Replies 2 ·
Why Does Kinetic Energy Seem Lost in a Collision Despite No Friction?
- n1trate
- · Replies 7 ·
Change in speed of satellite
- rohanlol7
- · Replies 3 ·
Find coefficient of kinetic friction of block and ramp.
- NIHLUS13
- · Replies 9 ·
Net electric force and Net electric field
- LionLieOn
- · Replies 3 ·
Finding Angle and Intensity of Split Rocket at Maximum Height
- doktorwho
- · Replies 4 ·
Loop-the-Loop and velocity problem
- GiantSheeps
- · Replies 8 ·
How can I calculate the work done in a gas compression problem?
- BrainMan
- · Replies 5 ·
Saving a Town from Lava Thermodynamics Problem
- BrainMan
- · Replies 4 ·
Solve Flight Attendant's Work Problem: A, B & C
- feddyfuntime
- · Replies 2 ·
Find the minimum and maximum of a ratio for equilibrium
- Aleph_null
- · Replies 2 ·
Orbital period from gravitational force and velocity equation
- LionLieOn
- · Replies 4 ·
Physics problem doubts - Circuits
- Anne Leite
- · Replies 5 ·
Work Kinetic energy using variable force
- kjamha
- · Replies 8 ·
Meaning of trajectory in four-electricity in Landau's book
- zhouhao
- · Replies 5 ·
What is the horizontal component of tension in a pendulum's motion?
- Carbon123
- · Replies 3 ·
Friction on Aluminum & Copper Blocks: Find Sum of Magnitudes
- Ondra
- · Replies 4 ·
Fresnel zones of a planar wavefront
- JulienB
- · Replies 15 ·
Work done walking up a mountain
- ravsterphysics
- · Replies 3 ·
Optics: dispersive power of diffraction grating
- JulienB
- · Replies 10 ·
Why do both Block A and B have a zero acceleration in this scenario?
- mamadou
- · Replies 11 ·
Solving Harmonic Oscillator Equation w/ Initial Conditions
- quas
- · Replies 9 ·
What is the impact of an open circuit on voltmeter readings?
- Biker
- · Replies 5 ·
Question about gravitational force(Binary star)
- Clara Chung
- · Replies 3 ·
Question about torque and friction
- Dorukk
- · Replies 2 ·
High school circuit diagram question
- rayclan
- · Replies 5 ·
Force on a hinge when a rod is being released
- randomgamernerd
- · Replies 11 ·
How does the magnetization of an atom change at its center?
- Lord33
- · Replies 3 ·
Where does the centripetal force come from in a falling lift?
- Clara Chung
- · Replies 5 ·
Question of latitude of Earth and measured field strength
- Clara Chung
- · Replies 18 ·
Aberration of a Particle: Solving for Angle and Velocity in Relativistic Frames
- Ken Miller
- · Replies 2 ·
Finding the average acceleration of a basketball player
- mamadou
- · Replies 5 ·
Charged Particle in Magnetic field calculation
- Matthew Clisby
- · Replies 9 ·
Thermodynamics: vapor pressure water, given the gibbs energy
- nicolasdfz
- · Replies 9 ·
Comparing Radio Waves: Short Wave vs. Phone/Radio
- Lord33
- · Replies 5 ·
Question about circular motion on a horizontal road
- Clara Chung
- · Replies 14 ·
Effect of Lowered Center of Gravity on Jumping Time
- ravsterphysics
- · Replies 5 ·
Question about the upthrust of a rocket
- ThatOneMidget
- · Replies 5 ·
Current through swimmer due to lightning strike
- Ampere
- · Replies 8 ·
Why Does Angular Momentum Calculation Differ When Using Different Formulas?
- Neon32
- · Replies 8 ·
Calculate Total Energy: Solve Homework Statement
- Neon32
- · Replies 2 ·
Is conservation of angular momentum a hoax?
- Chozen Juan
- · Replies 2 ·
Force on a relativistic particle
- omoplata
- · Replies 2 ·
Find the angular speed at t=3 seconds
- Neon32
- · Replies 4 ·
What is the width of a rectangle given pressure, mass, and length of one side?
- rrrrrr
- · Replies 7 ·
Work done in moving a 1C positive charge from one point to another
- Abdulwahab Hajar
- · Replies 5 ·
What happens to wavelength as temperature of air increases?
- turtlepower
- · Replies 3 ·
Prove that a capacitor driven by an AC voltage radiates EM
- zhouhao
- · Replies 4 ·
Electric fields - Finding Net force acting on Q2
- Schaus
- · Replies 21 ·
Train experiencing Coriolis force
- xy270
- · Replies 9 ·
Electric potential at a point due to two charges
- Schaus
- · Replies 2 ·
How do I convert cubic picometer to cubic centimeter?
- Rajdeep Biswas
- · Replies 3 ·
Swing Torque: Tension in Chains for Boys & Girls
- Schaus
- · Replies 9 ·
Force on a 30 kg meteor at 1.06×10^6 m altitude: g or universal gravitation formula?
- LionLieOn
- · Replies 7 ·
Calculating Downward Force for Curling Broom at Constant Speed | F=ma Equation
- Schaus
- · Replies 17 ·
Roller Coaster Physics: Calculating Energy, Speed, and Force
- Schaus
- · Replies 4 ·
A Leak in a Bicycle Tire Problem
- BrainMan
- · Replies 3 ·
Hooke's Law Q3: Does Increasing Cross Sectional Area Reduce Work?
- ravsterphysics
- · Replies 4 ·
What Forces Act on a Train Engine Going Around a Circular Curve?
- Kernul
- · Replies 10 ·
Width of Resonance in RLC-circuit
- Marcus95
- · Replies 14 ·
Time Dilation on a Spaceship: Observing Earth's Clock at High Speeds
- Veronica_Oles
- · Replies 5 ·
2 questions from rolling motion
- DarkBallade
- · Replies 4 ·
Calculate the magnitude of angular acceleration
- reformedman
- · Replies 5 ·
An electron is launched between two plates
- sliperyfrog
- · Replies 2 ·
KE of a hoop rolling within a tube
- davon806
- · Replies 2 ·
Hooke's law and elastic deformation
- ravsterphysics
- · Replies 3 ·
Change in gravitational potential below the surface of the Earth
- MBBphys
- · Replies 4 ·
Thermal Expansion Problem Involving a Brass Ring
- BrainMan
- · Replies 4 ·
Calculating frequencies with the Doppler Effect
- Luke Frederiks
- · Replies 1 ·
(Hard) work done by damped, driven oscillator as function of time
- NucEngMajor
- · Replies 2 ·
Conic Pendulum Exercise: Tension and Velocity as Functions of Angle
- Kernul
- · Replies 4 ·
Calculating Resistance in a Circuit with Unknown Components
- ravsterphysics
- · Replies 11 ·
How Is Current Calculated for Rotational Equilibrium in a Magnetic Field?
- TheBigDig
- · Replies 2 ·
Why is the tangential force not same?
- decentfellow
- · Replies 10 ·
Will the man and woman walking on different surfaces slip due to friction?
- Ayanda
- · Replies 2 ·
Rod is toppling. Find reaction force as a function of theta
- NucEngMajor
- · Replies 2 ·
Density and circumference relationship? From Example in book
- unicornflyers
- · Replies 1 ·
Proving generality of moment of inertia
- TubbaBlubba
- · Replies 4 ·
Electromagnetic Force on a Moving Proton: Homework Example
- Schaus
- · Replies 6 ·
Calculating Electron Velocity in Crossed E and B Fields
- Schaus
- · Replies 5 ·
Energy conservation in superball collision
- Alettix
- · Replies 13 ·
Tension Exercise on frictionless inclined plane
- Kernul
- · Replies 4 ·
Solve Spring Gun Problem: Recoil Speed Calculation
- Raymond Huang
- · Replies 1 ·
Where can I find a good textbook for special relativity?
- Taylor_1989
- · Replies 33 ·