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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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 ·
What is the net torque about the axle?
- a.a
- · Replies 6 ·
Index of refraction of an optical fiber
- rayhan619
- · Replies 1 ·
Kinetic Energy, Potential Energy, Work
- jskellington
- · Replies 3 ·