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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Work done in a thermodynamic process
- Pushoam
- · Replies 3 ·
Dielectric inserted into a parallel plate capacitor
- Vriska
- · Replies 1 ·
Refraction of wavefront in water
- Jahnavi
- · Replies 11 ·
Super quick question about angular motion
- lc99
- · Replies 1 ·
Current flowing in a cylinder and induced EMF
- Jahnavi
- · Replies 8 ·
Two beetles run across flat sand, starting at the same point
- HappyFlower
- · Replies 3 ·
Relative motion/Projectile motion
- Physics345
- · Replies 18 ·
How Far Is the Star Cluster with Apparent Magnitude 15 mag and B-V of 1.39 mag?
- Taylor_1989
- · Replies 7 ·
Determine Force on 6ft Door Due to Water & Air Pressure
- MiMiCiCi22
- · Replies 7 ·
Need someone to help check my work -- Artificial Gravity Report
- Physics345
- · Replies 18 ·
Maximizing and Minimizing Friction to Aid in Transportation
- Physics345
- · Replies 8 ·
Does the label "centripetal force" ever appear in a FBD
- Physics345
- · Replies 15 ·
How to Calculate Electric Field from Rods?
- FS98
- · Replies 3 ·
Confusion about a capacitor with 2 different dielectrics
- Hieu
- · Replies 4 ·
Find transverse velocity given an equation of displacement
- dUDEonAfORUM
- · Replies 9 ·
Calculate the resulatant downward force of a submarine on the seafloor
- Richie Smash
- · Replies 11 ·
A vehicle of mass 1200 kg accelerates
- NotVerySmart
- · Replies 5 ·
Special Relativity - Length Contraction
- Destroxia
- · Replies 1 ·
A comet at its closest approach to the Sun
- Alexanddros81
- · Replies 1 ·
How can I improve my egg drop design using limited materials?
- Johnson Smith
- · Replies 2 ·
An equilateral triangle's electric field at its center
- Roverse
- · Replies 10 ·
Determine the orbital period of Phobos
- Alexanddros81
- · Replies 1 ·
Calculate the maximum and minimum distances between the Earth and the Moon
- Alexanddros81
- · Replies 1 ·
Compute the distance between the Earth and the Moon
- Alexanddros81
- · Replies 5 ·
Integrating an Expression with d(h³)/dt
- Marcos Domingues
- · Replies 2 ·
How Does Gauss' Law Apply to a Spherical Conducting Shell with a Central Charge?
- Ignitia
- · Replies 5 ·
Mach-Zehnder Interferometer interpretation
- WWCY
- · Replies 7 ·
Harmonic Motion of a Charged Particle
- FS98
- · Replies 1 ·
Equilibrium of an object orbiting around a planet
- Jahnavi
- · Replies 5 ·
Spectrum Analyzer: Measuring Quiet Sound Frequency
- Physicist1011
- · Replies 2 ·
Find the time when the spring reaches its max height
- Helly123
- · Replies 38 ·
How to model a non-linear pendulum with air resistance?
- Omkar Vaidya
- · Replies 4 ·
How to find the thermal compressibility of a gas
- PKM
- · Replies 3 ·
What are the speeds of P and M while riding Ents and playing catch with rings?
- Macy
- · Replies 18 ·
No prefix: Understanding the Total Force on a Mass Attached by Two Springs
- CGandC
- · Replies 4 ·
Quick question about moment of inertia
- lc99
- · Replies 21 ·
How Can You Calculate the Maximum Flow Rate for a Hot Shower?
- frequentPeriod
- · Replies 6 ·
Finding magnitude of vector without direction (kite problem)
- Lorelei42
- · Replies 1 ·
Tympani in a concert hall: calculating Sound Pressure Level (SPL) and delay
- Rorshach
- · Replies 16 ·
Finding the radius of the satellite's circular orbit
- Specter
- · Replies 3 ·
Magentic Fields and Force Exerted
- Theudius
- · Replies 5 ·
How to calculate these values in biomechanics?
- Tsunnnami
- · Replies 2 ·
Coulomb's law vs Electric Field
- Ashley1nOnly
- · Replies 12 ·
Relationship between thickness, width and length
- Perodamh
- · Replies 6 ·
Conceptual questions about Newton's Laws....
- PrathameshR
- · Replies 15 ·
Calculating the Hill sphere of the International Space Station
- fema98
- · Replies 3 ·
Maxwell Ampere law capacitor problem
- Amaelle
- · Replies 2 ·
Sequental elastic and inelastic collisions
- Jay Sachar
- · Replies 4 ·
Finding Lagrangian for Overhanging String on Frictionless Table
- Boltzman Oscillation
- · Replies 3 ·
I with this circuit -- 2 resistors and 2 sources....
- edgarpokemon
- · Replies 9 ·
How to find m1 in T = ( m1c1T1 + m2c2T2 ) / ( m1c1 + m2c2 )
- YNesterov
- · Replies 2 ·
Electrostatics: "Compressing" Charged Spherical Shell
- WWCY
- · Replies 26 ·
Circularly polarized waves as an orthonormal state
- Hammed
- · Replies 2 ·
Centre of mass of binary system calculation
- R_moor
- · Replies 8 ·
How Does Gauss' Law Apply to an Insulated Cylindrical Shell and Rod System?
- Faiq
- · Replies 5 ·
Electrostatics: Energy from a charge distribution
- WWCY
- · Replies 29 ·
Electromagnetic force on particles forming a square
- FS98
- · Replies 5 ·
The magnetic field outside a coaxial cable
- Amaelle
- · Replies 2 ·
Mutual inductance of a coil inside a solenoid
- Amaelle
- · Replies 4 ·
Calculate the height of a water column and expressions for P
- Richie Smash
- · Replies 16 ·
Constraint of Two blocks on an inclined plane
- CGandC
- · Replies 11 ·
Does Bernoulli's equation apply to a fountain?
- Physicist1011
- · Replies 9 ·
Did I Calculate the Volume Using Archimedes' Method Correctly?
- lc99
- · Replies 3 ·
Wave Physics - Optics - Effective Focal Length
- trocadero
- · Replies 12 ·
Field of a circular loop around its axis issue
- Amaelle
- · Replies 3 ·
Confirmation of T/F questions concerning Diodes-Transistors
- matzis
- · Replies 4 ·
Don't understand this question regarding radioactive decay
- Just some student
- · Replies 4 ·
Inclination angle between the orbital plane and the plane of the sky
- quasarLie
- · Replies 1 ·
Predicting Changes in Interference Patterns using Laser Interference Equations
- fatcats
- · Replies 3 ·
What Determines the Center of a Diffraction Pattern?
- Pushoam
- · Replies 7 ·
Electromagnetic induction questions
- LonelyElectron
- · Replies 2 ·
Estimate vibrational frequency of N2 molecule
- Sam J
- · Replies 5 ·
Is my reasoning correct? (rotational kinetic energy)
- lc99
- · Replies 4 ·
Simple Harmonic Motion of Meterstick
- ln(
- · Replies 22 ·
Why Divide by 4 in Pendulum Period Calculation?
- asilvester635
- · Replies 2 ·
Magnetic Field due to Opposing Coils
- mitchy16
- · Replies 9 ·
Tension on Pulley HW: Block A & B Force Analysis
- HydroMarioUSA
- · Replies 4 ·
Analyze this opamp active filter circuit
- ace130
- · Replies 5 ·
Why is the magnetic force directed downward in this scenario?
- Amaelle
- · Replies 2 ·
Calcultating circular frequency and phase on a spring
- Acookook
- · Replies 8 ·
Stern-Gerlach: Measurements of spin
- WWCY
- · Replies 16 ·
[LENS] Given focal length and height, find object distance
- Phil123
- · Replies 1 ·
Torque and Initial Angular Velocity effect on time
- lc99
- · Replies 6 ·
How long after the switch is closed does the voltage across
- beeteep
- · Replies 4 ·
Full Width Half Maximum of Single Coil
- mitchy16
- · Replies 8 ·
How Does Friction Affect Motion on an Inclined Plane?
- HydroMarioUSA
- · Replies 3 ·
Converting Area to Volume: A Spherical Coordinate Approach
- brioches
- · Replies 2 ·
What Is the Speed of a Freight Car When All the Sand Is Gone?
- Saitama
- · Replies 32 ·
Use angular momentum to find the velocity (comet orbit)
- vbrasic
- · Replies 14 ·
What is the correct equation to solve this power and voltage problem?
- CAT 2
- · Replies 18 ·
Bug on spinning disk -- What distance does the bug fly off?
- reanamate
- · Replies 5 ·
A positive charge of magnitude Q1 = 8.5 nC is located....
- brioches
- · Replies 2 ·
Are there two answers to this question?
- askbbj
- · Replies 30 ·
Minimum and maximum resultant of three vectors.
- Vatsal Goyal
- · Replies 4 ·
Confusion about induction in conductors
- timetraveller123
- · Replies 17 ·
Find the change in mass from the KE (nuclear decay)
- Blanchdog
- · Replies 1 ·
Which Gas Compression Process Requires the Most Work?
- Ghost Repeater
- · Replies 1 ·
Diagram confirmation - force of magnetism
- Meeeessttteeehh
- · Replies 2 ·
Finding the net gravitational force on a rocket....
- Specter
- · Replies 5 ·
Electric Field of a solid sphere of non-uniform surface density
- vtv
- · Replies 2 ·