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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Three-mass pulley system with friction on table
- aatgomez
- · Replies 3 ·
What is the explanation for the confusion in Griffiths' energy derivation?
- albega
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Work done pulling a 2m chain with 60cm hanging off a table
- Yashbhatt
- · Replies 22 ·
Path differenece of light ray to produce first minima
- desmond iking
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Sig figs introductory physics course
- Teachme
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Inteference of light ray in thin flim
- desmond iking
- · Replies 10 ·
Solving a Population Growth Problem
- math2014
- · Replies 6 ·
Finding the dipole moment of a molecule in an electric field
- Les talons
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Mass of sand grains with surface area equal to a 0.9 m cube
- benEE2018
- · Replies 15 ·
Understanding Velocity vs Time Graphs for Horizontal Motion
- Fated
- · Replies 4 ·
What Are the SI Units of the Gravitational Constant in Newton's Law?
- RCAF91
- · Replies 4 ·
Electric Fields - continuous charge distributions
- Xgens
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Optical path difference of air wedge
- desmond iking
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What is the maximum mass of a bug to not tip the straw?
- Nathanael
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Crow flying to destination (vector problem)
- LoganPatrick
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How Do You Solve Two-Dimensional Wave Interference Problems?
- Jaimie
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How wide is a single slit that gives its first minimum at 90°?
- jmacmartin
- · Replies 5 ·
Falling Rock on Planet X. Solving for 'g'.
- WCSpeidel
- · Replies 5 ·
IB Physics Extended Essay - Terminal velocity experiment - ideas neede
- ankursharma309
- · Replies 7 ·
RL circuit with 0.2H inductor and 330Ω resistor
- ilovescience85
- · Replies 3 ·
Gauss' Law --> Electric field of an infinitely long, straight line
- s3a
- · Replies 7 ·
Why does (current density) dJ/dt=0?
- iScience
- · Replies 5 ·
Resultant Vector using Components
- kukumaluboy
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Oscillations and inverse square law
- Anchit
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Circuitous definition of charge ?
- SpaceNerdz
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What is the tension in the rope used to pull two blocks with friction?
- capandbells
- · Replies 6 ·
Fundamental of Physics 10th Edition Problem 52
- kmshowalter
- · Replies 3 ·
Optics: Spherical Interface -- Real and Virtual Images
- Chetlin
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Force ratio in tandem sleds where front sled has twice the mass
- gcombina
- · Replies 9 ·
Coriolis force in rotating reference frames: ball and person on merry-go-round
- Jimmy87
- · Replies 7 ·
Potential difference in uniformly charged cylinder
- Alexander2357
- · Replies 5 ·
How Do You Calculate the Initial Speed of the Second Stone?
- kmshowalter
- · Replies 1 ·
VECTORS, NEWTONG SECOND LAW [Chapter 4, question 5 (Focus on Concepts)
- gcombina
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Finding Current Flux Through Closed Surface
- Gee Wiz
- · Replies 3 ·
Vector Multiplication in a Triangle on the Cartesian Plane
- Lucian09474
- · Replies 2 ·
Electrostatic Force/Coulomb's Law
- mattdsaun
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Why is the Conversion Factor for kg-force 0.1?
- Karol
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Percent Uncertainty Shenanigans
- dumakey1212
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No-skid stopping distance with reaction time
- dlang
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Deriving sin(a-b) trig identity using Cross Product of Unit Vectors
- deedsy
- · Replies 20 ·
Find function with given boundary conditions
- skrat
- · Replies 1 ·
When and at what distance does the second train reach its maximum speed?
- fatteingenting
- · Replies 8 ·
What is the tension force in a tug-of-war between two teams?
- gcombina
- · Replies 6 ·
Why is the Central Maximum Shifted Towards P? Ask Here!
- somecelxis
- · Replies 22 ·
Calculating Stability: Finding the Tipping Point of a Table
- toothpaste666
- · Replies 5 ·
Deriving the formula for electric potential?
- 21joanna12
- · Replies 1 ·
Why add times for average velocity over multiple segments
- stryker105
- · Replies 4 ·
Egg thrown up reaching 30m below starting point in 5s
- burnst14
- · Replies 12 ·
Torque about a point given coordinates in three dimensions
- squelch
- · Replies 9 ·
Calories Required to Raise the Temp of Aluminum
- Drakkith
- · Replies 3 ·
Normal Force and Coefficient of kinetic friction (Quiz 4, q15)
- gcombina
- · Replies 3 ·
Finding the resistance, magnetic flux, and current of a loop section
- arghphysics
- · Replies 22 ·
What is the displacement vector needed to reach a research station on a safari?
- Nyxious
- · Replies 7 ·
Voltage divider data is a problem
- part
- · Replies 10 ·
Average kinetic energy of molecules of ideal gas
- slaw155
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Ball dropped through a tunnel through the earth.
- PhysicsStudnt
- · Replies 2 ·
Cylinder with piston, stationary state
- dave84
- · Replies 7 ·
Calculating the Volume of a House
- Gabrielle227
- · Replies 2 ·
Finding Projection of Force onto line
- Bluestribute
- · Replies 22 ·
Understanding Passive Sign Convention
- orangeincup
- · Replies 13 ·
Problem of conservation of linear mometum
- dk_ch
- · Replies 14 ·
What time are two thrown balls at the same height?
- Yae Miteo
- · Replies 4 ·
Proton in a uniform electric field
- Feodalherren
- · Replies 13 ·
Ampere's Law Application Problem
- BlackMelon
- · Replies 7 ·
Dropping Balls in tube with liquid
- bbq2014
- · Replies 28 ·
Force on a dipole in a non-uniform electric field
- fayled
- · Replies 9 ·
How Do You Calculate Mean Life and Half-Life of Radioactive Nuclei?
- Apollo14LMP
- · Replies 25 ·
External pressure on a piston with/without friction
- Dishsoap
- · Replies 1 ·
Prove that s^2=(s')^2 using the Lorentz Transformation
- castrodisastro
- · Replies 1 ·
Electric Field caused by two charges problem
- pstir2
- · Replies 1 ·
How Many 116In Nuclei Can Be in Equilibrium?
- Apollo14LMP
- · Replies 4 ·
What is the potential between 2 concentric spheres?
- Red
- · Replies 43 ·
Solve Gauss's Law for D: Electric Displacement of Sphere with Polarization kr
- fayled
- · Replies 2 ·
Problem: How can American 110V light bulbs be used on a 240V grid?
- pstir2
- · Replies 25 ·
Ranking force on q via multiple charge density vs. theta graphs
- BiGyElLoWhAt
- · Replies 11 ·
Magnetic Force on current-carrying wire
- fonz
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If the height of the water slide is h = 3.2m and the person's initial
- Cody
- · Replies 6 ·
Are My Calculations Correct for this Complex Circuit?
- pstir2
- · Replies 11 ·
What causes a radiometer to spin in bright light?
- Tranceform
- · Replies 6 ·
Rocket thrust resultant and shoulder traction apparatus
- sloan13
- · Replies 7 ·
1994 Physics Olympiad Semi-Final Exam Question
- HPphysics
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Solving for Angular Frequency in Series R to Parallel LC
- ChasW.
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What Went Wrong with This Linear Temperature Scale Problem?
- jdawg
- · Replies 3 ·
How Does the Velocity-Distance Graph Relate to a Particle's Acceleration?
- sylwesh98
- · Replies 7 ·
Critical angle for total reflection with glass to air
- shangriphysics
- · Replies 5 ·
How to Calculate Work Done by a Force Along a Path?
- squelch
- · Replies 11 ·
Resonant Frequency and speed of sound
- Codav
- · Replies 4 ·
Potential on the rim of a uniformly charged disk
- ELB27
- · Replies 9 ·
Force of repulsion between two hemispheres of a metal conductor
- ELB27
- · Replies 8 ·
Car Tire Wear and Odometer Accuracy Calculation
- SPhy
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Collision of ball with a fixed inclined plane
- Dr.azwar
- · Replies 3 ·
Vectors -- Adding velocity vectors to make a resultant
- APphysicsOR
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Calculating Work Done for Carrying Tool Boxes
- cyberjupiter
- · Replies 6 ·
How to Solve for x in the Power Equation: 2.34=15.3*0.886^x
- CD01
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Finding the Angle Between Vectors A and B in the Cross Product
- Fetch
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Equivalent capacitance for infinite ladder
- anand raj
- · Replies 1 ·
What happens when a bulb is connected to the wrong voltage supply?
- Vibhor
- · Replies 4 ·
Answer Checking: Unit 1 Waves Chapter 1
- Codav
- · Replies 1 ·
How Does Water Pressure Change Inside a Spinning Test Tube?
- bphys348
- · Replies 1 ·