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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Calculating Maximum Force Acting on 28kg Mass: F=ma
- kopinator
- · Replies 3 ·
Finding Max Force Acting on a Moving Body Mass: A Challenge
- kopinator
- · Replies 1 ·
Having trouble finding the potential between two positive point charges.
- nontradstuden
- · Replies 3 ·
A question regarding particle diffraction.
- BruceSpringste
- · Replies 1 ·
Special Relativity with Three reference frames
- scienceLilly75
- · Replies 9 ·
Parallel Conducting plates problem
- ajmaeen
- · Replies 1 ·
Calculating the Length of an Incline Plane: A Kinematic Approach
- baird.lindsay
- · Replies 1 ·
How can I explain how air resistance damps a pendulum's motion
- JamieGreggary
- · Replies 1 ·
Finding the natural frequency of a steel beam
- hks118
- · Replies 4 ·
Skier on a snowball (Newtonian Mechanics)
- derravaragh
- · Replies 5 ·
Kinematics: Slowing Car from 54 to 32 km/h in 65 m
- Inferior Mind
- · Replies 1 ·
Graphing disc radius vs damping in a pendulum experiment
- JamieGreggary
- · Replies 2 ·
Charge on a Sphere: Calc Magnitude & Deficit Electrons
- quicksilver123
- · Replies 5 ·
Two Balls Dropped: Same Time Impact?
- Toranc3
- · Replies 2 ·
Calculating Ratio of Time Above ymax/2 to Time from Floor to ymax
- Toranc3
- · Replies 3 ·
How much force to drag an object?
- c131frdave
- · Replies 4 ·
Finding the total vertical distance - transverse wave
- PhysicsFriend
- · Replies 2 ·
5 blocks connected together on an incline
- loxo
- · Replies 1 ·
Kinetic enengy needed to break a board
- Howlin
- · Replies 1 ·
Vertical Projectile Motion Problem
- TheRedDevil18
- · Replies 10 ·
Particle motion + electric fields
- quicksilver123
- · Replies 6 ·
Overlapping spheres of charge: finding the E field between them
- jerro
- · Replies 1 ·
Lorentz transformations combined with force
- daselocution
- · Replies 2 ·
Validity of Newton's 2nd Law in accelerating ref. frame and constant v.
- Hakkinen
- · Replies 5 ·
Optics: Finding the wave equation given position and amplitude information
- azolotor
- · Replies 1 ·
Free Body Diagram and applied force
- ThePhysicsBoy
- · Replies 13 ·
Differentiating energy equation for mass on springs
- caius
- · Replies 4 ·
Extension of upper spring with three masses in decelerating elevator
- aruji73
- · Replies 7 ·
Re-arranging cosh to make x the subject
- zfleas
- · Replies 1 ·
F = ma Exam 2011 # 12 (Gravitational Attraction of Rods and Balls)
- SignaturePF
- · Replies 5 ·
Electric Potential and Energy in Parallel Plate Configuration
- skg94
- · Replies 9 ·
F=MA 2012 Exam #19: Find Pipe Radius
- SignaturePF
- · Replies 8 ·
F = ma 2011 Exam #9 (Ideal Spring problem)
- SignaturePF
- · Replies 15 ·
Electric potential at the outer surface of the insulating sphere?
- bodaciousbob
- · Replies 1 ·
F = MA 2010 # 11 (Static equilibrium, 3 masses on a string)
- SignaturePF
- · Replies 11 ·
Electric field of Earth: what are r and a in the field equation?
- Lolligirl
- · Replies 4 ·
Hudson River accident. Friction on water
- MikeyMike
- · Replies 2 ·
Why does the E-field inside a cylinder =0?
- lodovico
- · Replies 2 ·
Ball thrown striaght up part C
- Toranc3
- · Replies 1 ·
Thermal Physics, finding the thermal conductivity of a metal
- jv616
- · Replies 1 ·
How Does Moving a Charge Affect Electric Flux in a Cubic Gaussian Surface?
- CAF123
- · Replies 16 ·
Resonant frequencies in a tube with adjustable length
- Von Neumann
- · Replies 4 ·
Mechanics Problems, involving spring system and gravitation
- Thundagere
- · Replies 5 ·
What type of heat transfer is this? Conduction, convector, or radiation?
- pyroknife
- · Replies 2 ·
Thermodynamics internal energy Problem
- liamtcarroll
- · Replies 1 ·
Water Flowing through U-tubes (Velocity Given Cross-Sectional Areas)
- SignaturePF
- · Replies 6 ·
Energy Considerations When A Satellite Changes Orbit
- Bashyboy
- · Replies 1 ·
Sniper Projectile Motion: Trajectory and Impact Analysis
- Inferior Mind
- · Replies 5 ·
Determing Height To Which A Projectile Will Rise
- Bashyboy
- · Replies 9 ·
Distance Travelled in Perfectly Elastic Collision with Friction
- SignaturePF
- · Replies 12 ·
Calculating total circuit resistance
- Jalisi
- · Replies 5 ·
Why is my calculation for the height of the building off?
- Toranc3
- · Replies 4 ·
F = MA 2010 #10 (Two blocks on top of each other, one is being pulled)
- SignaturePF
- · Replies 9 ·
F = MA Exam 2010 #'s 15,16 (Two mass system with initial velocity)
- SignaturePF
- · Replies 8 ·
A ball is dropped twice off the same initial height. trial one bounces
- melofc
- · Replies 4 ·
Block on a Plane - Friction problem
- bd2015
- · Replies 1 ·
Solving for Acceleration using V^2=V0^2+2a(x-x0)
- tball665
- · Replies 2 ·
Very hard Coulomb Force with two charges
- Ben000
- · Replies 4 ·
F = MA 2010 Exam # 24 (MoI after shift in CoG)
- SignaturePF
- · Replies 6 ·
Finding Acceleration of a Car with a Hanging Mass
- morrisj753
- · Replies 4 ·
Circuit 1 with Resistors and Battery
- kjlchem
- · Replies 14 ·
Particle collision at an angle
- Saxby
- · Replies 3 ·
Particle speed relativity question
- Artichoke
- · Replies 2 ·
Be atom splitting into two helium atoms
- mc0210
- · Replies 14 ·
Resultant vector relative to x and y axis.
- kaffekjele
- · Replies 3 ·
Falling stick with weight on the end
- leroyjenkens
- · Replies 3 ·
Doubling the frequency of a wave
- Saxby
- · Replies 2 ·
Differentiating force to find potential energy
- Saxby
- · Replies 2 ·
How Fast Does a Rock Accelerate Past a Window?
- mgerman63016
- · Replies 3 ·
Rutherford Experiment, energy and acceleration.
- skg94
- · Replies 19 ·
Ring of charge (half positive, half negative)
- jtran06
- · Replies 3 ·
Solving Ideal Gas Question: Calculating Total Hydrogen and # of Balloons
- jiayingsim123
- · Replies 1 ·
Law of conservation of energy and springs.
- firezap
- · Replies 3 ·
Point Charge and Charged Sphere; Gauss' Law
- SeanFM21
- · Replies 5 ·
Question concerning Electromagnetism
- Shinster007
- · Replies 2 ·
How Does Friction Affect Energy Between Points B and C?
- Questions999
- · Replies 1 ·
Can heat be conducted in ice when only one layer is melted?
- sgstudent
- · Replies 12 ·
Diffraction Gratings, confusing question.
- skg94
- · Replies 5 ·
Longitudinal Waves in Air (Experimentally determining the speed of sound)
- Von Neumann
- · Replies 6 ·
Solving the Rock Falling: Velocity & Time
- Reth0407
- · Replies 3 ·
Finding period formula for compound pendulum with log linearization
- Gauss M.D.
- · Replies 9 ·
Time dilation problem approaches from relativity homework
- wackyscience
- · Replies 3 ·
Angle required to keep block from sliding down plane
- leroyjenkens
- · Replies 2 ·
Finding and labeling equilibrium points between multiple point charges.
- nontradstuden
- · Replies 1 ·
Motion in two and three dimensions question?
- Questions999
- · Replies 1 ·
Projectile:body falling down well
- CAF123
- · Replies 16 ·
Gauss' Law: Electric Field of Spherical Shell Insulator
- miniMitts27
- · Replies 1 ·
Finding the Height of a Pot On the Y-Axis
- Juan42
- · Replies 3 ·
A Penny Falling Off a Non-moving Sphere
- Juan42
- · Replies 1 ·
Color band colors for 1kΩ resistor
- pyroknife
- · Replies 3 ·
Kinetic Energy and Time Problem
- jtim36
- · Replies 3 ·
F = MA 2011 #'s 19, 20 (Force, Kinematics)
- SignaturePF
- · Replies 22 ·
How Far Must a Skier Travel to Reach 48 m/s on a 22° Slope?
- anne921
- · Replies 1 ·
Angular resolution of a 300-meter telescope system at 500nm
- oldspice1212
- · Replies 5 ·
Finding the electric field on a cylinder with a hole
- PhysicsRob
- · Replies 6 ·
(Very Basic) Movement of Charged Particles Through Parallel Plate Apparatus
- 012anonymousx
- · Replies 1 ·
Work-Energy, Acceleration, and Plates
- skg94
- · Replies 7 ·
Newtonian Mechanics - Ball Falling through Syrup
- derravaragh
- · Replies 6 ·
DC circuit steady state (resistors and capacitors)
- pyroknife
- · Replies 2 ·
Calculating Reaction Time from Dropped Meter Stick
- _physics_noob_
- · Replies 8 ·