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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Maximum load on pine beam with safety factor of 5
- Neon32
- · Replies 1 ·
Calculation of torque to stop a wheel.
- cheapstrike
- · Replies 4 ·
Maximum potential energy after collision
- randomgamernerd
- · Replies 2 ·
Polarisation (light on water surface)
- ravsterphysics
- · Replies 4 ·
Beam Divergence from non-circular laser beam
- nordmoon
- · Replies 2 ·
Direction of force exerted by ground for the ladder problem
- ddcz
- · Replies 2 ·
Archived Calculus for delta function based on wave function
- sandf
- · Replies 1 ·
Why does aluminum float on an 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 ·
Why does lamp N get brighter when lamp M breaks?
- 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 ·
Why does Faraday's law give EMF when no magnetic field touches the wire?
- 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.
- Deleted member 612403
- · 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 ·
Work done pulling a flight bag 253 meters at constant velocity
- 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 ·
Why does using a graph point give inverted resistor values?
- 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 ·
Will 2 kg aluminum and 6 kg copper blocks on steel move when released?
- Ondra
- · Replies 4 ·
Fresnel zones of a planar wavefront
- JulienB
- · Replies 15 ·
Work done walking up a mountain
- ravsterphysics
- · Replies 3 ·
Angular width and dispersive power of a 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 ·
Net moment in a binary star system
- Clara Chung
- · Replies 3 ·
How much force needed to tip a box before it slides?
- 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 ·
Vapor pressure of water from Gibbs free energy at 25°C
- nicolasdfz
- · Replies 9 ·
Electromagnetic wave with k=0.41 m⁻¹: is it a radio shortwave?
- Lord33
- · Replies 5 ·
Why doesn't the left wheel have a net moment in horizontal circular motion?
- Clara Chung
- · Replies 14 ·
Effect of Lowered Center of Gravity on Jumping Time
- ravsterphysics
- · Replies 5 ·
Saturn V rocket thrust and net force at lift-off
- 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 ·
Why calculate moment of inertia if it's already given
- 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 by electric field E = axX - ay2y moving 1C charge
- 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 ·
Tension in swing chains supporting boy, girl, and swing
- Schaus
- · Replies 9 ·
Force on a 30 kg meteor at 1.06×10^6 m altitude: g or universal gravitation formula?
- LionLieOn
- · Replies 7 ·
Force Barney pushes on curling broom handle at constant speed
- 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 ·