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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What is the minimum distance between two objects on perpendicular planes?
- springo
- · Replies 13 ·
Relativity, and the half life of Muons
- babacanoosh
- · Replies 1 ·
How is coefficient of performance different from efficiency?
- corona7w
- · Replies 2 ·
Answer Calculation of Sound Intensity and Power Output
- Noir
- · Replies 1 ·
I can't figure out this problem
- jw123
- · Replies 1 ·
Understanding Inductance Diagrams and EMF Generation in Electrical Systems
- hellogirl88
- · Replies 1 ·
Solving Projectiles: Kinematics Equations & Variables for Grade 12 Physics 12 BC
- link2110
- · Replies 5 ·
Banked highway curves and static friction
- joseg707
- · Replies 3 ·
Law of conservation of momentum question
- physics120
- · Replies 3 ·
What is the Kinetic Energy Formula for a Satellite Orbiting Earth?
- skiing4free
- · Replies 7 ·
Sound Waves Frequency Calculation Help
- nubey1
- · Replies 1 ·
NO 2 OBJECTS WILL EVER really TOUCH?
- zapped
- · Replies 1 ·
Calculating Kinetic Energy Loss in Neutron Collision
- botab
- · Replies 1 ·
What is the height of the ledge from which the flowerpot fell?
- Susanem7389
- · Replies 4 ·
Energy in a spring-mass system
- ryoonc
- · Replies 3 ·
Electric Fields: Sodium Ions pumped
- Madison029
- · Replies 3 ·
How do I correctly calculate the height of a building using motion equations?
- wowdusk
- · Replies 3 ·
True-false questions about frictionaless, masslesss pulleys
- electricheart
- · Replies 3 ·
Maximum tension a cable can withstand.
- cdx
- · Replies 3 ·
Solving Satellite Motion: Momentum & Energy Principles
- enchanteuse
- · Replies 1 ·
Calculating minimum energy to remove satellite from orbit
- guitarman
- · Replies 3 ·
Angular Momentum: Position, Velocity, and Acceleration in Circular Motion
- physics_geek
- · Replies 14 ·
Final speed of an asteroid using escape speed
- enchanteuse
- · Replies 4 ·
How Does a Changing Magnetic Field Induce EMF in a Circular Loop?
- themoleculoma
- · Replies 2 ·
Two parallel lines with current
- carrotcake10
- · Replies 3 ·
Find the Equivalent Resistance of a Network
- jumbogala
- · Replies 7 ·
Please help, Resistive Forces, Initial Acceleration.
- yb1013
- · Replies 12 ·
Kapitsa Pendulum: Stability Criterion Homework
- nmatthies
- · Replies 1 ·
Vector Sum and Difference: Solving with Graphical Methods | Homework Help
- wowdusk
- · Replies 3 ·
Refraction, how tall is the image?
- Quantum Joe
- · Replies 1 ·
Centripetal Force: Calculating Bank Angle for Plane Circling Airport
- pats6
- · Replies 10 ·
Design a Multirange Voltmeter with Variable Series Resistances
- hsiao
- · Replies 4 ·
Finding Energy with the Uncertainty Principle
- stickplot
- · Replies 2 ·
One Kinematic Problem, One Pendulum Problem, One Wave Problem
- ernay
- · Replies 7 ·
Calculate force of friction using tension & angles
- bhangu23
- · Replies 2 ·
What is the electric field 4cm from a uniformly charged plate?
- roflcopter
- · Replies 5 ·
Two objects will never actually touch
- zapped
- · Replies 2 ·
What is the normal force on the driver?
- Shatzkinator
- · Replies 7 ·
What are the Magnitude and Angle of Vectors in Terms of their Components?
- Susanem7389
- · Replies 5 ·
Motion with constant acceleration
- Susanem7389
- · Replies 4 ·
Electric field inside hydrogen atom.
- onyx390
- · Replies 2 ·
Solve Friction on a Ramp Homework Statement
- mikey555
- · Replies 7 ·
What Were the Initial Velocities of the Cars Before the Collision?
- cybernerd
- · Replies 1 ·
Solving the Coefficient of Kinetic Friction for a Sliding Pig
- Shatzkinator
- · Replies 7 ·
Almost Solved my ele. hmwk, need someone to check it
- shemer77
- · Replies 11 ·
Temperature & Pressure. Beginner Physics.
- Nachore
- · Replies 1 ·
Find Friction Force for P= 8.0, 10.0 and 12.0 N
- Shatzkinator
- · Replies 8 ·
Another conservation of energy problem
- physicsman2
- · Replies 3 ·
Converting Velocity-Time Graphs Into Acceleration Graphs
- j1249
- · Replies 5 ·
Modeling Kinetic Energy of a Ball Roll Experiment
- physicsman2
- · Replies 3 ·
Partial Density Homework: Integrate Momentum in Navier-Stokes
- womfalcs3
- · Replies 2 ·
How do I Find Average Force in a Force vs Time graph?
- haroldham
- · Replies 4 ·
But overall, you've got the right idea.
- physicsman2
- · Replies 1 ·
Rolling Steel Ball Acceleration Questions
- j1249
- · Replies 2 ·
The lowest energy eigenvalues
- eman2009
- · Replies 1 ·
2002 AP Exam: Lab Situation w/Density and Springs
- rvhockey
- · Replies 3 ·
Help Solve Kinetic Energy of Moving Spring with Mass 1
- makeAwish
- · Replies 11 ·
Heat exchanger consisting of Coaxial Cables
- TFM
- · Replies 31 ·
What is the Centripetal Acceleration of Earth's Orbit Around the Sun?
- mrmoar
- · Replies 3 ·
Determine pressure of a gass in a piston-cylinder device
- v_pino
- · Replies 1 ·
Newtons Laws with Uniform Circular motion
- lubuntu
- · Replies 2 ·
Calculating Uncertainty for ln x: A Short Guide
- fluppocinonys
- · Replies 5 ·
MI of rectangular and triangular lamina
- Mansi Khanna
- · Replies 2 ·
Determine the base unit for the magnetic flux
- aaron86
- · Replies 5 ·
Deriving Formula #5 - V2² = V1² + 2ad
- j1249
- · Replies 1 ·
Parallel and series capacitors question
- jimen113
- · Replies 9 ·
Charges placed in right triangle pls HELP
- sunny.heyar
- · Replies 1 ·
Disk and Block (Moment of Inertia)
- Trentonx
- · Replies 1 ·
Optimum Angle for Jumping: Height & Distance
- icecomet
- · Replies 1 ·
Current across resistor and inductor
- verbose
- · Replies 5 ·
Force of water on a pulled barge with angle
- bravohimz
- · Replies 2 ·
Simple dynamics problem, I can't seem to get the answer to
- rock.freak667
- · Replies 3 ·
Calculating Centripetal Acceleration and Normal Force on a Roller Coaster Loop
- Shatzkinator
- · Replies 13 ·
Identifying three identical metal bars (with your eyes closed )
- IRNB
- · Replies 2 ·
Can a Single-Wheel Foam Roller Win a Physics Ramp Contest?
- microdoodle
- · Replies 14 ·
Determine the charge on each and voltage across each.
- negat1ve
- · Replies 6 ·
Battery provides a potential difference problem
- secret5437
- · Replies 6 ·
Gravitational pull on two objects
- enantiomer1
- · Replies 3 ·
Max Height of Stone on Spring: 51.2 cm
- FlukeATX
- · Replies 2 ·
Unraveling the Mystery of Magnetic Attraction
- zoner7
- · Replies 1 ·
How Well Do You Understand Gauss's Law?
- roflcopter
- · Replies 1 ·
Calculating Force: Car Pushing on Truck with Dead Battery
- ceday
- · Replies 1 ·
How Do You Calculate the Force of Tension in a Pendulum Rope?
- enantiomer1
- · Replies 2 ·
Circuit with Resistors and Two Opposing EMFs
- VariableX
- · Replies 3 ·
Spinning Disk (circular motion)
- Trentonx
- · Replies 3 ·
Why do dust particles stay suspended in the gas?
- nyrychvantel
- · Replies 1 ·
Electrical Field of a Charged set of Spheres
- Snowman2526
- · Replies 3 ·
What values of F make the tension zero?
- HyperSniper
- · Replies 5 ·
Thermal efficiency in a reversible cycle for an ideal gas pV diagram
- clairez93
- · Replies 14 ·
What Is the Magnitude and Direction of the Position Vector on a Merry-Go-Round?
- Shatzkinator
- · Replies 10 ·
Determining Work from E-field Graph
- Dopefish1337
- · Replies 8 ·
Pressure and Forces within Fluids
- daisy497
- · Replies 2 ·
What does the y-int of a velocity-time graph represent?
- PhysicsJunkie
- · Replies 2 ·
What Determines the Absorption or Emission of Photons in Hydrogen Atoms?
- stickplot
- · Replies 8 ·
What are those glasses that show ROYGBIV called?
- iFat
- · Replies 1 ·
Calculating Force Exerted by Laser Beam on a Mirror
- Matthaeus_
- · Replies 7 ·
Electric circuit, reversing current
- -EquinoX-
- · Replies 14 ·
Youngs modulus isnt coming out as constant
- smolly
- · Replies 8 ·
How do I Solve for t in a Projectile Motion Equation?
- Tatjana
- · Replies 2 ·