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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Diffraction Question: Find Slit Width & Angle θ
- Amy Marie
- · Replies 4 ·
Violin frequencies and harmonics
- toothpaste666
- · Replies 2 ·
Magnitude & Direction of Electric field
- Ahsan123
- · Replies 1 ·
What happens when two spinning cylinders come in contact?
- thephysicist
- · Replies 2 ·
Calculating the Force to Knock Over a Domino
- Dt2000
- · Replies 4 ·
Calculating Time and Speed of Rebounds with Coefficient of Restitution
- Darth Vader
- · Replies 1 ·
How to solve the instantaneous center problem for rotating tires?
- yugeci
- · Replies 4 ·
Measuring Torque Without Torsion Dynamometer
- AFIST2
- · Replies 5 ·
What is the acceleration of the sled?
- won der
- · Replies 2 ·
How to Calculate Average Velocity with Displacement & Speed?
- Eunes
- · Replies 3 ·
Force on moving charge in ELECTRIC field
- PhysicStud01
- · Replies 5 ·
Velocity of a block attached to a pulley and cylinder
- whonut
- · Replies 10 ·
Can we use conservation of energy law to find final velocity
- justduy
- · Replies 6 ·
How Fast Must the Boat Travel to Clear the Shark Tank Stunt?
- HaLAA
- · Replies 3 ·
Max Energy Λ in Σ0 Decay: Explained & Calculated
- Matt atkinson
- · Replies 15 ·
Finding tension between two objects with different fs
- Potatochip911
- · Replies 2 ·
A charged ball on a string between two charged plates
- Karol
- · Replies 2 ·
What fraction of its total kinetic energy is rotational kinetic energy
- jimmyboykun
- · Replies 20 ·
Classical Mechanics: Coriolis Effect Problem
- Eyedbump
- · Replies 3 ·
Conservation of four-momentum concepts, frames
- binbagsss
- · Replies 6 ·
Muon Decay: Homework Statement & Solution
- cam borrett
- · Replies 2 ·
How Much Power Can a Coaxial Cable Transmit Before Breakdown?
- SiberianS;pth
- · Replies 1 ·
If wavelength changes does speed change
- rrosa522
- · Replies 4 ·
How does tension affect the motion of a hanging block on a rotating disk?
- Brandan
- · Replies 2 ·
Improving MPG Calculation Using GPS Data
- thinkcentre12
- · Replies 31 ·
2D Elastic collision of varying mass, velocities, and angles
- Samuelriesterer
- · Replies 29 ·
What force is needed to lift a wheel over a bump with given mass and radius?
- Julia123
- · Replies 5 ·
Elastic collision of three balls
- skrat
- · Replies 10 ·
Help with AC Circuit containing a motor
- docsxp
- · Replies 8 ·
How Fast Must a Car Go to Clear a 12m Loop and What Are the Max G-Forces?
- EpicFishFingers
- · Replies 7 ·
Sources of Error in Youngs double slit experiment
- danepaj
- · Replies 4 ·
How Does Child Movement Affect Torque and Force Distribution on a Plank?
- Nnk
- · Replies 5 ·
Algebra of pulley-mass energy equation
- PacFan01
- · Replies 2 ·
[Trusses] Problem finding forces in members
- student314
- · Replies 4 ·
[College Physics II: Waves/Optics] Index of Refraction
- AgentRedfield
- · Replies 3 ·
What is the mass of the second asteroid?
- thephysicslife
- · Replies 2 ·
Is Momentum or Kinetic Energy Conserved in a Clay Collision?
- Speedking96
- · Replies 2 ·
Net force is zero between two masses
- rpthomps
- · Replies 2 ·
Pressure force on a control volume
- princejan7
- · Replies 1 ·
Momentum relation for control volume
- princejan7
- · Replies 8 ·
How Do You Calculate Tensions T1 and T2 in a Balanced Suspended Plank?
- tzar1990
- · Replies 3 ·
The physics of billiards. (Describing the motion)
- JuanC97
- · Replies 9 ·
Work done by friction force on an object?
- bluetriangle
- · Replies 4 ·
Special Relativity - "Simultaneity"
- FaraDazed
- · Replies 2 ·
Moment of inertia and angular velocity of a uniform disk
- Sara583
- · Replies 7 ·
Two Masses Hanging on a Massive Pulley problem
- MissBisson
- · Replies 15 ·
Force produced after landing stiffly
- Jazz
- · Replies 8 ·
Photoelectric effect experiment: is current proportional to charging time?
- quantumtimeleap
- · Replies 3 ·
Can vacuum tubes contain a gas?
- Lemenks
- · Replies 3 ·
How Fast and Slow Does Time Flow on a Speeding Spaceship?
- FaraDazed
- · Replies 2 ·
What is the maximum torque on a square shaped wire with given parameters?
- davidbenari
- · Replies 4 ·
Zero Electric Potential Concept and Visualization
- Solisiel
- · Replies 5 ·
What does it mean when we get the answer in Newtons a Metre for moments?
- Dylex
- · Replies 2 ·
How Does Wheelchair Tension Affect Stability in a Moving Subway?
- Seung Lee
- · Replies 1 ·
Momentum: throwing boot while on ice
- akgtdoskce
- · Replies 2 ·
Tension problem- why doesn't this solution work?
- Lola Luck
- · Replies 6 ·
How Does Changing String Tension Affect Frequency in a Physics Problem?
- wentwork882
- · Replies 2 ·
Newton's laws question -- a car coasts to a stop on a level road
- rmalski
- · Replies 6 ·
When does "no slipping" happens
- nesan
- · Replies 5 ·
How do I find components of a vector at a given angle?
- Dylex
- · Replies 2 ·
Block pulled through hole with increasing force in polar coordinates
- fishking2
- · Replies 11 ·
Heat transfer by radiation between two plates
- Karol
- · Replies 10 ·
Analyzing Forces and Torque of a Slipping Rod
- powerof
- · Replies 20 ·
Archimedes Principle - Mass floating on ice
- Mike Dacre
- · Replies 4 ·
Find Force to Tilt a Refrigerator
- logan3
- · Replies 1 ·
Quantum Energy Doubt: Solving a Particle Problem
- Frank Einstein
- · Replies 12 ·
Solving the Spring-Weight Paradox: 0.039m
- Speedking96
- · Replies 2 ·
Angular velocity of a ball after change of direction
- Vir
- · Replies 8 ·
Moment of Inertia Compass Needle
- Crush1986
- · Replies 18 ·
Quick Motion Question - Rejogging memory after a while.
- AviationFanBoy
- · Replies 13 ·
Solve Mass: Vertical Pully w/ 4kg Weight Accel 2m/s2
- physcisjay011
- · Replies 2 ·
Balls elastic collision off center
- Samuelriesterer
- · Replies 7 ·
Please verify my solution (Electric field cylinder)
- phyundergradhw
- · Replies 4 ·
Finding Initial Speed given Kinetic Friction, Mass, and more
- Redjakk1
- · Replies 15 ·
Free body diagram of an incline
- speakout
- · Replies 12 ·
How Does Wavelength Affect Intensity in a Double Slit Experiment?
- navm1
- · Replies 3 ·
Sound power radiation of dipole and bipole sources
- Jaryd Miles
- · Replies 3 ·
Find Angular Speed: Airplane Propeller Blades & Constant Acceleration
- nesan
- · Replies 4 ·
Elastic collision of the rigid balls
- skrat
- · Replies 1 ·
How Does Torque Affect a Climber Rappelling Down a Cliff?
- zippeh
- · Replies 4 ·
How Far Should a Helicopter Drop a Food Packet for Flood Victims?
- gracy
- · Replies 69 ·
Finding Force on 7.7 kg Block in Contact with 9.2 kg Block | Physics Problem
- GiantSheeps
- · Replies 8 ·
Inequalities in Force of Gravitation between Three Bodies
- jantdroid
- · Replies 16 ·
Change in entropy of system and universe
- sfgoat
- · Replies 2 ·
Resolving proteins with UV microscope
- Les talons
- · Replies 3 ·
Rotation angular velocity of a turntable
- lilyE
- · Replies 5 ·
Upward Acceleration of Hanging Mass Connected Pulley
- MissBisson
- · Replies 2 ·
Estimating diffraction pattern width from uncertainty principle for 50eV electrons
- throneoo
- · Replies 8 ·
How Is Impulse Calculated in Baseball Physics?
- GiantSheeps
- · Replies 5 ·
Explaining depths reached by swimmer by conservation of energy/momentum
- Jazz
- · Replies 2 ·
Circular motion banked curve questions
- Samuelriesterer
- · Replies 7 ·
Buoyant Force and Archimede's principle
- Ering
- · Replies 1 ·
Calculate the Fourier Transform using theorems
- grandpa2390
- · Replies 9 ·
Moment of Inertia of a rod and two spheres
- QuantumKnight
- · Replies 3 ·
Is Heat a Form of Energy Stored in a Body?
- Karol
- · Replies 6 ·
Units of acceleration [f/s^2] vs [g]
- jahmookcity
- · Replies 9 ·
Distance traveled by a particle using Potential energy function
- MissBisson
- · Replies 16 ·
Height of a drop in a dripping faucet
- krackers
- · Replies 2 ·
Two electrons repelling from 5.0×10⁻¹² m apart
- MystiqThunder
- · Replies 5 ·
Average power in series LC circuit
- Rugile
- · Replies 3 ·