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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Finding Velocity of Golf Club After Impact with Ball
- x2017
- · Replies 14 ·
Relation of Charge polarity and voltage polarity
- KKJ20
- · Replies 5 ·
What variables affect the height of a Heron's fountain?
- Dami121
- · Replies 74 ·
Why is force P not included for body CD in this statics problem?
- yecko
- · Replies 1 ·
FInding current in parallel and series circuits
- rocky4920
- · Replies 10 ·
What is the relationship between kinetic energy and gravitational acceleration?
- Makali
- · Replies 7 ·
Current Flowing through High Voltage AC Transmission Lines
- Dave Johnson
- · Replies 8 ·
Medical supplies dropped from a plane (projectile motion)
- Humbleness
- · Replies 4 ·
How to Solve a Timing Diagram with Multiple Logic Gates?
- Potatochip911
- · Replies 3 ·
Charged sphere on horizontal thread and above charged plate
- Matthew Muro
- · Replies 5 ·
Elastic and inelstic collisions conceptual questions.
- R_moor
- · Replies 6 ·
Car suspension damping system explanation
- Physics345
- · Replies 11 ·
Can someone explain this equation to me? Δm=μΔt
- PurpleRain
- · Replies 9 ·
Find Distance d for Impulse on Stick to Rotate Once
- SothSogi
- · Replies 13 ·
Plane diving at 53° releases projectile from 730m
- HappyFlower
- · Replies 2 ·
Sound Power Level (SPL) of a loudspeaker
- Rorshach
- · Replies 11 ·
Is Your Friend's Radiation Exposure in Guarapari Safe Compared to UK Standards?
- Taylor_1989
- · Replies 4 ·
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 ·
Angular displacement with constant acceleration
- 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 ·
Force on 6ft hinged door from water and air pressure
- MiMiCiCi22
- · Replies 7 ·
Artificial gravity created by rotation and centripetal motion
- Physics345
- · Replies 18 ·
Examples of maximizing and minimizing friction 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 ·
Force on mass between two springs using Hooke's law
- CGandC
- · Replies 4 ·
Moment of inertia of a triangle about an axis through a vertex
- 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 reflection: SPL decrease and delay calculation in concert hall
- 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 ·
Four conceptual questions on Newton's laws and gravity
- 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 ·
Finding Vo and Io in a two-source two-resistor circuit
- edgarpokemon
- · Replies 9 ·
How to find m1 in T = ( m1c1T1 + m2c2T2 ) / ( m1c1 + m2c2 )
- YNesterov
- · Replies 2 ·
Work to compress a charged spherical shell at constant charge and potential
- 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 ·
Energy of a uniformly charged wire using self-potential
- 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 ·
Finding displaced volume of a sphere using density
- 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 ·
Radioactive decay chain differential equations for Te-131
- 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 ·
How are tensions related for blocks on a pulley system?
- 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 distinguishing spin states along different axes
- 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 ·