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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Can Tension in Circular Motion Be Equal for Both Ropes?
- Lori
- · Replies 2 ·
Capacitor Network Homework: Find the Charge
- German
- · Replies 4 ·
Harmonic Oscillator with Friction
- Fascheue
- · Replies 12 ·
Is My Homework Solution Correct?
- Pushoam
- · Replies 47 ·
Coefficient of kinetic friction?
- 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 ·
Conceptual question about frictional force and equilibrium
- lichenguy
- · Replies 8 ·
AP Physics C: Karate Expert's Board Chop Calculation
- CoreanJesus
- · Replies 1 ·
Rotational Mechanics: Find Height of Stick in N Turns
- 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 ·
Rotating Bodies Around Origin: Analyzing Motion & Dynamics
- 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 ·
Material: semi - conductor or metal?
- Pushoam
- · Replies 11 ·
Did i do this problem right? (Work by Spring and KE)
- Lori
- · Replies 10 ·
Physics Of A Loop Using the Program "Tracker"
- njdcat
- · Replies 14 ·
Calculating Torques on a Door with Hinges
- darkduck
- · Replies 30 ·
Question about output voltages and impedances
- 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 ·
Unsolved Circuit Question: Ammeter 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: Refraction Problem Explained
- Irfan Nafi
- · Replies 14 ·
Another pulley problem (answer check)
- 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 ·
Solving v^2/2=gs(sin(α)+cos(α)*k): Get k with Steps
- 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 ·
Freefall v Jetpack: Will He/She Stay Afloat or Crash?
- 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 ·
Is this a typo? (Complex positions of input and output links)
- 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 ·
Newton's Law Problem (Did i do this correctly?)
- Lori
- · Replies 3 ·
Tension in Suspended Traffic Light Problem
- Lori
- · Replies 4 ·
Is this a mistake on the answer key? (Newton's Laws)
- Lori
- · Replies 5 ·
Cooking (Thermodynamics) Problems
- Matt Poirier
- · Replies 14 ·
Kinetic Energy & Work Problem -- Tractor Pull Competition
- 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 ·
Suspending a Speaker: What is T in each cable
- 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 ·
Tension in a String: Explaining P=T+25 N vs 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 ·
Confusion about Bernoulli's Equation & Airplane Wing
- 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 ·
Tension and Centripetal Force in Circular Motion
- Lori
- · Replies 2 ·
When will the tension the same throughout a rope?
- Clara Chung
- · Replies 1 ·
The Resonating Wineglass Problem: Understanding the Equation and Variables
- EF17xx
- · Replies 22 ·
Elastic collision heavy particle problem
- Abu
- · Replies 12 ·
Kinetic energy of recoil atom in the photoelectric effect
- thatguy145
- · Replies 1 ·
How Do Sign Conventions Affect Focal Length Calculations?
- Noreturn
- · Replies 8 ·