Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
Threads
350 Hz sound travels through air and metal pipe at different speeds.
- KineticNRG
- · Replies 2 ·
Shotput acceleration and speed calculation
- jarny
- · Replies 7 ·
Pendulum clock period at low temperature
- mimi83
- · Replies 1 ·
Simple Projectile Motion I'm sure
- Todd88
- · Replies 1 ·
Calculating Electric Potential Energy for a Charge Configuration
- synergix
- · Replies 4 ·
Projectile motion of a fire hose
- spacecadette
- · Replies 6 ·
Electrons transferred between charged plate and rod
- Haniszmi
- · Replies 4 ·
Potential energy in ELECTRIC DIPOLES
- orthovector
- · Replies 2 ·
Calculating Magnetic Force on a Current-Carrying Wire
- fiyavan
- · Replies 4 ·
Force of Friction on object on an incline
- tascja
- · Replies 8 ·
Electric field from a polarized metal sphere?
- txaggiechick
- · Replies 1 ·
Y coordinate of the system's center of mass?
- raptik
- · Replies 3 ·
Difference between Coulombic and gravitational forces
- MarianKh
- · Replies 3 ·
How Does a Proton's Velocity Change in a Uniform Electric Field?
- Haniszmi
- · Replies 1 ·
Solving Horizontal Force Problems Involving Blocks
- jarny
- · Replies 7 ·
Calculating Force of Attraction and Tidal Force Between Jupiter and the Sun
- painfulphysic
- · Replies 1 ·
Work Done by Spring on 0.103 kg Mass: 0.10094 J
- magma_saber
- · Replies 1 ·
Find the latent heat of fusion of ice
- soccerawesome
- · Replies 1 ·
Finding x and y components of velocity and force vectors
- Susanem7389
- · Replies 10 ·
Block pushed up 35degree incline (frictionless)
- bustin
- · Replies 2 ·
Train whistle with braking: does pitch decrease as it slows?
- jan2905
- · Replies 3 ·
How far below the top edge does the ray strike the mirror?
- rayhan619
- · Replies 1 ·
How many mirror images of a red ball at point A are seen from point O?
- rayhan619
- · Replies 1 ·
Minimum Force to Move a Crate with Constant Speed?
- bakin
- · Replies 8 ·
Electron kinetic energy between three potential points
- yOVivo
- · Replies 1 ·
How Do You Calculate Change in Internal Energy in a PV Diagram?
- M_CG
- · Replies 4 ·
Projectile Motion: Finding Initial Velocity
- cookie76
- · Replies 2 ·
Vectors Magnitudes and Angles (Respect to the X Axis)
- FAJISTE
- · Replies 11 ·
How is an electric field determined?
- me_and_you
- · Replies 2 ·
What is the correct method for finding the smallest angle between two vectors?
- salman213
- · Replies 20 ·
Equivalent capacitance and RC time constant for 75% charge
- dewdrop714
- · Replies 6 ·
I'm stcuk, sort of, not really, I need some resurance is all
- cooper43
- · Replies 8 ·
How much work was done by friction on the person?
- physicsman2
- · Replies 11 ·
I think it's a conservation of energy problem
- Seraph404
- · Replies 9 ·
Electron Energy in Compton Collision
- Quelsita
- · Replies 1 ·
What is the Maximum Transmission Rate for Multi-Path Propagation?
- raymond23
- · Replies 5 ·
Calculating the Ampere Rating of a Circuit Breaker
- dewdrop714
- · Replies 3 ·
Amplitude of oscillations depends on the amount of damping?
- nokia8650
- · Replies 11 ·
Calculating Current given the number of electrons and positive ions
- clickcaptain
- · Replies 1 ·
Constant Acceleration With Two Objects
- eltavo809
- · Replies 8 ·
Kinetic energy and potential energy of a baseball
- physicsman2
- · Replies 7 ·
Addition of forces acting on object
- kisengue
- · Replies 8 ·
How Does Temperature Affect the Resistance of a Nichrome Heating Element?
- clickcaptain
- · Replies 3 ·
What is the Relationship Between Work, Distance, Power, and HP?
- Klane
- · Replies 4 ·
How do I convert between unit systems?
- Klane
- · Replies 1 ·
Calculating the Force Required to Move a Crate at Constant Velocity
- moy13
- · Replies 3 ·
Acceleration due to gravity/velocity questions (I've done the work)
- Xenon29
- · Replies 4 ·
Piecewise does not translate properly
- dumguy
- · Replies 2 ·
Thevenin Equal Resistance - Strange Circuit
- staggarhs
- · Replies 9 ·
Electricity question potential difference
- Jnblose
- · Replies 14 ·
Tension in cord connecting boxes on incline and horizontal surface
- jarny
- · Replies 6 ·
Calculating tension in a taut cable
- AnneP
- · Replies 13 ·
Solving Slope Questions: Conclusions About Average Slope
- alliereid
- · Replies 1 ·
Conceptual question regarding resolving power of optical instruments
- lonewolf5999
- · Replies 2 ·
Mike's Car Stopping Force Problem: Find the Answer!
- Visual1Up
- · Replies 2 ·
Electric field from charged nonconducting wall using Gauss's law
- Breedlove
- · Replies 7 ·
Finding total flux on Gaussian surface
- phymateng
- · Replies 4 ·
Speed and velocity of a watch's second hand tip
- mattstjean
- · Replies 9 ·
Finding currents in a two-battery circuit with Kirchhoff's rules
- Snoop06
- · Replies 14 ·
Will a Meter Stick Rotate Around Its Center of Mass When Released?
- nothing123
- · Replies 3 ·
What is the final velocity of an asteroid on a collision course with Earth?
- Stryder_SW
- · Replies 9 ·
Seperation effects on the forces of gravity and eletricity
- Tricause
- · Replies 2 ·
Moments Of A Couple probably just something simple.
- withthemotive
- · Replies 1 ·
An ideal fluid flows through a pipe with radius R with flow speed v
- nothing123
- · Replies 2 ·
Quick sign question for uniform circular motion
- hachi_roku
- · Replies 4 ·
Meter stick in a tank viewed at 30° angle: empty, half full, and full of water
- rayhan619
- · Replies 10 ·
Carton sliding up a 22° plane with initial speed 3.0 m/s
- joseg707
- · Replies 5 ·
Converting a vector to component form
- jimmyv12
- · Replies 2 ·
Particle speed and direction at t=4.5s from parametric equations
- jimmyv12
- · Replies 3 ·
What is the wavelength of the helium-neon laser beam in the unknown liquid?
- allstar16
- · Replies 3 ·
How to Calculate the Flight Time and Apex for a Model Rocket Launch in Excel?
- radarspec
- · Replies 2 ·
What is the Magnitude of Magnetic Force on an Electron in Various Orientations?
- kristibella
- · Replies 2 ·
What is the efficiency of the engine?
- Jaybee85
- · Replies 1 ·
Potential difference across each capacitor
- w3390
- · Replies 7 ·
Calculating Magnetic Field Needed for Proton Beam
- kristibella
- · Replies 1 ·
Series capacitors, electric field from potential, and capacitor energy
- musicfairy
- · Replies 8 ·
Finding current with parallel resistors
- cm846
- · Replies 7 ·
Maximum height reached by 2.2kg mass in pulley system with 3.2kg mass
- joseg707
- · Replies 1 ·
Potential difference of falling charge particle
- phymateng
- · Replies 1 ·
What are the two common forms of the slope equation?
- alliereid
- · Replies 3 ·
Does an object tilt when weight is added to one side while moving?
- Newton V
- · Replies 21 ·
Building a water heater- using battery and wire
- zapped
- · Replies 5 ·
Flux through a Cube - Why would flux be zero?
- limonysal
- · Replies 3 ·
Antique Road Show Physics Problem: Calculating Final Velocity of Colliding Carts
- cooper43
- · Replies 15 ·
Electric potential on long insulating cylinder
- Seraph404
- · Replies 7 ·
What is the maximum distance a stone thrown at 30 m/s can cross a river?
- roxxyroxx
- · Replies 5 ·
1983 Exam Question w/SHM and conservation of momentum
- rvhockey
- · Replies 1 ·
Forces-Newton's Laws and Vectors
- joseg707
- · Replies 15 ·
Period of a mass oscillating on a spring
- jgens
- · Replies 2 ·
Why Does the Styrofoam Slab Float at Water Level When a Swimmer Rests on It?
- djeitnstine
- · Replies 1 ·
What happens when two forces meet at 45 degrees?
- Newton V
- · Replies 10 ·
Calculating Net Force on 2kg Mass Down 8m Incline
- NickS606
- · Replies 19 ·
How Does Jupiter's Mass Density Compare to Earth's?
- abuhotlove
- · Replies 14 ·
How do you calculate deceleration due to resistance?
- cpalm
- · Replies 1 ·
How Does Lenz's Law Affect Current in Adjacent Loops?
- Lokhtar
- · Replies 4 ·
Angular momentum of the sun and a white dwarf
- Fendergutt
- · Replies 3 ·
Conservation of Energy for a rotating Rod
- AROD
- · Replies 4 ·
What percentage of a boat is above water when it has a density of 0.75 g/cc?
- kazimmerman
- · Replies 5 ·
How Many Parts Must a 100Ω Wire Be Cut Into to Achieve 1Ω Total Resistance?
- Karolis
- · Replies 1 ·