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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Why must we use integral to find the resultant force?
- EastWindBreaks
- · Replies 4 ·
Constant acceleration and radius of curvature
- Jahnavi
- · Replies 6 ·
Solving Torque Unit Issue: kg*m3/s2 ≠ kg*m2/s2
- Chad Jensen
- · Replies 2 ·
Calculating Index of Refraction with Wavelength
- waley
- · Replies 1 ·
Linearizing nonlinear relationships between x and y
- Oscar Zarate
- · Replies 2 ·
Finding tension in rope on a 6 kg block at 30°
- Lori
- · Replies 5 ·
Can Tension in Circular Motion Be Equal for Both Ropes?
- Lori
- · Replies 2 ·
How to find charge in each capacitor using Kirchhoff's rules
- German
- · Replies 4 ·
Solving the differential equation for damped harmonic oscillator
- Fascheue
- · Replies 12 ·
Deriving Cp - Cv for a gas with pressure-dependent volume
- Pushoam
- · Replies 47 ·
Finding coefficient of kinetic friction on an inclined plane
- juju1
- · Replies 21 ·
Statements Based on a Heat Exchanger
- tomadevil
- · Replies 8 ·
Derive Formula for Velocity of Object Approaching Earth
- directory_NA
- · Replies 17 ·
Rotating mass on a frictionless table pulling up an object.
- vvanessa
- · Replies 6 ·
Magnetic field inside and outside of a magnetized cylinder
- astrocytosis
- · Replies 17 ·
Waves questions from Cambridge physics paper 9702
- Michael Marchenko
- · Replies 15 ·
Why does ray a correspond to red and ray b to violet in this dispersion diagram?
- Augustine Duran
- · Replies 5 ·
Pushing spring from both sides - Find the spring constant
- Pishard
- · Replies 4 ·
Beam on inclined surface: friction at maximum and equilibrium when position changes
- lichenguy
- · Replies 8 ·
Why use 0.028 m instead of 0.050 m for board chop distance
- CoreanJesus
- · Replies 1 ·
Stick thrown up completes N turns before being caught
- ARNAV SHARMA
- · Replies 8 ·
How do I calculate the normal force for equilibrium lab?
- Noman Rasheed
- · Replies 20 ·
Superposition on longitudinal wave
- Kai
- · Replies 1 ·
Two equal masses rotating around origin with fixed separation
- Silviu
- · Replies 3 ·
Group Velocity of Non-Dispersive Wave Packet
- waley
- · Replies 3 ·
Projectile Motion Problem (Physics 12) -- Apple core thrown from a tree
- fatcats
- · Replies 14 ·
Wheel rolling on a horizontal surface
- Jahnavi
- · Replies 65 ·
How to determine the force that stretches a rubber band
- Sanev
- · Replies 26 ·
A problem on velocity that is bugging me :/
- warhammer
- · Replies 3 ·
Which cylinder reaches the ground first?
- Pushoam
- · Replies 12 ·
Distinguishing a material's properties using temperature or electromagnetic effects
- Pushoam
- · Replies 11 ·
Spring potential energy and kinetic energy with doubled compression
- Lori
- · Replies 10 ·
Physics Of A Loop Using the Program "Tracker"
- njdcat
- · Replies 14 ·
Calculating Torques on a Door with Hinges
- darkduck
- · Replies 30 ·
Finding source voltage and load impedance from voltage divider measurements
- Mohamed Abdul
- · Replies 5 ·
Energy Flow in Coaxial Cable with Linear Free Charge Density
- GL_Black_Hole
- · Replies 7 ·
Wave equation for an elastic rod
- thomas19981
- · Replies 3 ·
"From your data, is the bandgap of ZnSe direct or indirect?"
- chrononaut 114
- · Replies 6 ·
Circuit with ammeter showing zero reading and potential difference
- Peter R
- · Replies 6 ·
Force and Power Required to Lift an Elevator Car
- Lori
- · Replies 9 ·
Velocity of spheres after collision
- Saitama
- · Replies 31 ·
Finding the Mass of a Meter Stick (Torque and Balance)
- Katelyn
- · Replies 13 ·
Examine the following circuit. Now complete the table.
- Sainvictus
- · Replies 2 ·
Gravity and Spring + KE problem
- Lori
- · Replies 3 ·
How Do You Calculate the Forces in Support Braces at Different Angles?
- John Muller
- · Replies 2 ·
What is the necessary correction factor for Rutherford scattering in 3D?
- Taylor_1989
- · Replies 2 ·
Weight held by a beam and cable
- EchoTheCat
- · Replies 2 ·
Current and power with transformers
- Cocoleia
- · Replies 8 ·
Scuba diver sees bird appear closer due to refraction—why isn't that right?
- Irfan Nafi
- · Replies 14 ·
Normal force on an inclined plane with pulley
- Lori
- · Replies 5 ·
Uniform Circular Motion of Roller Coaster
- Jdnotnice
- · Replies 4 ·
Calculating Drag Coefficient from Wind Tunnel Data
- zehkari
- · Replies 3 ·
How Do You Calculate the Total Inertia Matrix for a Composite Object?
- ang__
- · Replies 1 ·
Kinetic Energy and Newton Forces - distance/speed
- Lori
- · Replies 3 ·
Unhinged -- Static Equilibrium for a Door
- ErCeTe
- · Replies 3 ·
Rate of Gravitational Force (Power)
- Lori
- · Replies 5 ·
Slide generator/hookes law problem
- Rijad Hadzic
- · Replies 4 ·
Pulley at an Angle Problem - Newton Forces
- Lori
- · Replies 17 ·
How do I solve for k in v²/2=gs(sin(α)+cos(α)*k)?
- CarrotWilliams
- · Replies 9 ·
Why is Theta 2 Independent in Solving for Theta 3 in a 4-Bar Mechanism?
- EastWindBreaks
- · Replies 6 ·
Why Does My E/M Experiment Graph Have an Unexpected Y-Intercept?
- Kamal98
- · Replies 6 ·
Thermal physics -- Latent heat melting ice
- Cici2017
- · Replies 12 ·
How to find the torque for a spiral and bowl for dough mixer
- Sampath cm
- · Replies 17 ·
How do I measure the "load" in a schematic?
- Tasdel
- · Replies 5 ·
How to solve for the moment of inertia and angular acceleration?
- tellas
- · Replies 21 ·
Jetpack providing force equal to weight in freefall
- Dhruvish
- · Replies 7 ·
Problem about an elastic collision between a rod and a ball at an angle
- ubergewehr273
- · Replies 20 ·
Buoyancy: Cube of Iron - solved this correctly?
- snowcrystal42
- · Replies 1 ·
The equation to find the frequency of a bouncing ball
- Carlo Silanu
- · Replies 6 ·
Rotation of a hoop about an off-center axis
- Chad Jensen
- · Replies 3 ·
Effect of Earth-Sun Distance Variance on Effective Temperature
- il27
- · Replies 5 ·
Missing j in complex form of sine function
- EastWindBreaks
- · Replies 2 ·
Potential energy of a ball on top of a vertical rod
- Vriska
- · Replies 5 ·
Time Dilation and Length Contraction Problem
- ddobre
- · Replies 1 ·
Distance traveled by block on incline with friction
- Lori
- · Replies 3 ·
Tension in Suspended Traffic Light Problem
- Lori
- · Replies 4 ·
Cooking (Thermodynamics) Problems
- Matt Poirier
- · Replies 14 ·
Do equal work outputs mean equal energy losses to friction?
- Lori
- · Replies 3 ·
Neutron absorbed by a sheet of indium, % chance
- richphys
- · Replies 10 ·
Expressing expectation values of a particle moving in a periodic potential
- RJLiberator
- · Replies 1 ·
Effusing gas onto the interior of an evacuated sphere
- Toby_phys
- · Replies 1 ·
Electric field due to semi-circular wire at a distance
- Gijs
- · Replies 12 ·
Determine electrical power generated by changing B-field through a loop
- Rijad Hadzic
- · Replies 1 ·
Ratio of electric field to applied magnetic field
- Rijad Hadzic
- · Replies 9 ·
How Do You Calculate a Car's Average Velocity?
- ariloz
- · Replies 2 ·
Zero momentum reference frame and an inelastic collision
- Cutetys
- · Replies 4 ·
Finding cable tension for a suspended speaker
- pemby
- · Replies 8 ·
Can someone quickly clarify the answer for this?
- Lori
- · Replies 6 ·
Finding net force from acceleration, speed and distance
- Lis277
- · Replies 13 ·
Noise Modelling - Digital communication systems
- CMW328i
- · Replies 2 ·
Calculating Magnetic Field at Point P from a Short Current Element
- mortymoose
- · Replies 5 ·
Why is the tension equation P=T+25 N instead of P+T=125?
- Lori
- · Replies 7 ·
Pulley Problem with External Force?
- Lori
- · Replies 8 ·
Thermodynamics-adiabatic diffuser
- yecko
- · Replies 11 ·
Using Kirchoff's Voltage Rule to find currents in a system
- Rexx
- · Replies 6 ·
Using Newton's 2nd Law to find acceleration
- PerpetuallyConfused
- · Replies 5 ·
Bernoulli's equation with airplane wing: do height terms cancel?
- snowcrystal42
- · Replies 2 ·
Conservation of Energy and Angular Momentum in Inverse Cube Force Problems
- Spanky1996
- · Replies 10 ·
Blocks falling while attatched to pulley
- Jamie_Pi
- · Replies 6 ·