Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
Threads
Friction problem for two block system on an inclined plane
- cooldudeachyut
- · Replies 7 ·
Why does dP/dt = 0 imply constant total momentum?
- gibberingmouther
- · Replies 1 ·
Calculting the length of a solenoid
- Taylor_1989
- · Replies 7 ·
A Kirchhoff problem: Find the currents and voltages in this circuit
- Guillem_dlc
- · Replies 4 ·
Faraday's Law - loop turning in the Earth's B-field
- Taulant Sholla
- · Replies 9 ·
Electromagnetic induction emf question
- EF17xx
- · Replies 9 ·
Using Kirchoff's Loop Rule to Determine Currents in a Circuit
- JessicaHelena
- · Replies 2 ·
What mistake did I make in finding the net force on a rotating disc?
- Brilli
- · Replies 1 ·
Conservation of momentum - with understanding
- mathchimp
- · Replies 2 ·
Stretching of a wire due to it's weight
- palkia
- · Replies 19 ·
Comparing work done in five cases with springs and tension
- isukatphysics69
- · Replies 40 ·
Help uploading and posting pictures
- G Lenny
- · Replies 11 ·
Time dilation for spaceship at 0.600c with moving and stationary observers
- Mathematicsresear
- · Replies 9 ·
Electric field of a point charge assertion and reason problem
- Jahnavi
- · Replies 3 ·
Work to stretch a spring question (nvm, figured it out)
- gibberingmouther
- · Replies 5 ·
How to Find the Number of Liters of Gas Used in a Gasoline Engine
- Benb591
- · Replies 3 ·
Which way do I measure the potential difference
- JessicaHelena
- · Replies 6 ·
Speed of object 1 as observed by object 2 in special relativity
- Phantoful
- · Replies 3 ·
Mercury's orbit according to Classical VS Modern Physics
- Daniel Sarioglu
- · Replies 3 ·
Current through parallel cells with unequal EMFs
- zoya76
- · Replies 2 ·
Average velocity of gas molecules in a container
- steven george
- · Replies 3 ·
Tension in the string of a simple pendulum
- BearY
- · Replies 4 ·
Moment of Inertia of an inclined disk
- Raghavendar Balaji
- · Replies 27 ·
Find the initial speed of a block before it hits a spring
- isukatphysics69
- · Replies 21 ·
Kinetic/Potential Energy in Waves
- Kosta1234
- · Replies 3 ·
Two rods joined together, find the angle of twist
- Jahnavi
- · Replies 16 ·
Find the work done by the spring force on a box
- isukatphysics69
- · Replies 5 ·
What Is the Maximum Angle Attained by a Particle Projected from Earth?
- harambe
- · Replies 6 ·
Derivation of resonant frequency for SHM systems
- Bonnie
- · Replies 7 ·
What is the Speed at the Bottom of a Vertical Circle?
- WhiteWolf98
- · Replies 9 ·
Which of these materials will heat up faster and why?
- mrchopsy
- · Replies 16 ·
Faraday's law and linearly time dependent B field
- razidan
- · Replies 3 ·
Image Formation in Galilei Binoculars: Solving for the Image Position
- Mulz
- · Replies 3 ·
Electromagnetism homework check
- Sullo
- · Replies 8 ·
A particle P2 chases particle P1 with constant speed.
- Ishan Sharma
- · Replies 6 ·
Finding maximum speed using work energy theorem without integration
- Clara Chung
- · Replies 1 ·
Centre of percussion of a baseball bat
- Clara Chung
- · Replies 7 ·
What is the speed of the 5th image in optics with multiple mirrors?
- Jahnavi
- · Replies 6 ·
X-ray intensity transmitted through 0.7cm bone with attenuation coefficient 0.7cm⁻¹
- Jimmy87
- · Replies 1 ·
Pendulum string angle when car accelerates and at constant velocity
- HappyFlower
- · Replies 5 ·
Time Dilation - Darth Vader's age
- aatari
- · Replies 3 ·
How can unpolarized light have diagonal electric field components?
- palkia
- · Replies 9 ·
White light interference pattern and its resolution criteria
- Clara Chung
- · Replies 3 ·
Transcendental function and a finite well
- Taylor_1989
- · Replies 1 ·
What are the forces on the center of mass?
- eprparadox
- · Replies 7 ·
Tension in a flexible circular loop
- cheapstrike
- · Replies 46 ·
Finding the New Acceleration Given Point Charges
- Alex Z
- · Replies 10 ·
Disk on 30° incline pulled by hanging mass through pulley
- songoku
- · Replies 18 ·
How can I plot a graph for these opamp results?
- NYAME EPHRAIM
- · Replies 7 ·
Frequency of a standing wave based on slope?
- Ari
- · Replies 2 ·
Simple Harmonic Motion - Speed
- Jess_18033152
- · Replies 7 ·
Simple Harmonic Motion - rearranging equation
- Jess_18033152
- · Replies 2 ·
Sources of error in RC and LRC circuit experiments
- janiceyyyyyy
- · Replies 1 ·
Definition of distance -AR type problem
- Jahnavi
- · Replies 12 ·
Finding reaction forces on a beam with distributed load using differential equations
- yecko
- · Replies 11 ·
Why is W Tot not equal to W Glider on Spring in Newton's Third Law?
- Selfless_Gene
- · Replies 3 ·
Equivalent resistance of a circuit
- EchoTheCat
- · Replies 3 ·
Find the probability of energy value after a given measurment
- Taylor_1989
- · Replies 1 ·
The phase of a simple harmonic motion
- Guillem_dlc
- · Replies 5 ·
Thermodynamics: Dropping a hot horseshoe into a pot of water
- Jess_18033152
- · Replies 3 ·
Significant figures for density with 1.1% uncertainty
- Dima Petrukhin
- · Replies 23 ·
Efficient Path Tracing: Solving for Time and Motion with Inclined Planes
- Brilli
- · Replies 3 ·
Ratio of amplitudes in a damped oscillator
- tiago23
- · Replies 2 ·
Thermodynamics - Change in Temp
- Jess_18033152
- · Replies 2 ·
Special Relativity - Relativity of Simultaneity?
- Luxucs
- · Replies 4 ·
Superposition of Plane EM Waves Using Complex Notation
- WWCY
- · Replies 2 ·
Specific heat capacity of a solid material
- Aleisha
- · Replies 9 ·
Heat Question -- Temperature rise of a hiker on a long hike
- Kevin Kim
- · Replies 1 ·
Calculating Specific Heat Capacity
- struggtofunc
- · Replies 6 ·
Thermodynamics (Heat expansivity)
- Aleisha
- · Replies 4 ·
Calculating pressure within a system at a specific location?
- russiansplash
- · Replies 8 ·
Why do I have to use integration and components?
- Mariah
- · Replies 3 ·
A rod of length L and mass M has a nonuniform mass distribut
- boblolo123
- · Replies 1 ·
Why Is My Statics Friction Calculation Incorrect?
- lc99
- · Replies 18 ·
Finding the Kinetic Energy using the mass, radius and initial KE
- Ella1777
- · Replies 12 ·
Normal force as a function of time (oscillator)
- Luxucs
- · Replies 10 ·
Find the moment of inertia of a washer
- Pablo
- · Replies 4 ·
Weight change at top of mile-high building in Chicago
- Ella1777
- · Replies 4 ·
Why do car wheels lift on the inside of a sharp turn?
- Kavya Chopra
- · Replies 6 ·
Velocity of a charged particle as it approaches infinity
- Nasir Jones
- · Replies 2 ·
Angular momentum with a large wooden turntable
- MITPhysics
- · Replies 2 ·
Surface Tension of needle on water
- Aleisha
- · Replies 4 ·
Spring launcher on incline hitting elevated target
- michael simone
- · Replies 5 ·
Differences in velocity conceptual question
- Pochen Liu
- · Replies 2 ·
Find the velocity when the ball rolls without slipping
- vbrasic
- · Replies 7 ·
Finding the net gravitational force with Vector Notation
- Ella1777
- · Replies 2 ·
Remnant Magnetisation varying with input amplitude
- Cortizza
- · Replies 2 ·
Falling solid cylinder with string
- Suyash Singh
- · Replies 37 ·
Finding atomic radius in a cubic crystal with 0.17 nm lattice parameter
- Clara Chung
- · Replies 4 ·
Input impedance of a "Ladder" transmission line
- Marcus95
- · Replies 3 ·
How Fast Does Spaceship A Move Relative to Spaceship B?
- Hamza Abbasi
- · Replies 19 ·
In which direction does the current flow?
- bolzano95
- · Replies 5 ·
Electromagnet -- changing flux and a ring
- Jahnavi
- · Replies 3 ·
Finding the Mistake in Calculating Charge on a Capacitor with a Shorted Wire
- Jahnavi
- · Replies 5 ·
How does unbalanced tension affect the motion of a rope?
- Alex126
- · Replies 9 ·
Uncertainty in average time from 3 trials with 960 FPS video
- adityax26
- · Replies 2 ·
What is the acceleration of the coin after being dropped?
- Lesegp
- · Replies 4 ·
Self-inductance and resistance of two solenoids with different lengths
- Jahnavi
- · Replies 13 ·
Displacement given the acceleration
- Guillem_dlc
- · Replies 8 ·
Calculate the characteristics of this compression spring
- bravopipo
- · Replies 3 ·