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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Block sliding up a 30° incline with friction
- PhizKid
- · Replies 1 ·
Energy of a non-linearly damped oscillator
- Oerg
- · Replies 1 ·
Electric Field Strength at Center of Triangle
- rbrayana123
- · Replies 1 ·
Tangential and radial acceleration
- magnas
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Normal force max min constraints on a roller coaster
- firewoodwolf
- · Replies 5 ·
Equilibrium position in bungee jump oscillation
- mrcotton
- · Replies 7 ·
Calculating Work of Friction Force on a Bumpy Road
- golanor
- · Replies 14 ·
Calculating Force Vectors Between Charged Particles
- Mushroom79
- · Replies 10 ·
Extremely confusing work question
- SecretSnow
- · Replies 6 ·
Compton Shift and energy of scattered x-rays
- Gurj
- · Replies 5 ·
Why is the velocity of flow six times bigger in a tube with a larger radius?
- BrnoStudent
- · Replies 2 ·
Calculating the Voltage for a Proton Floating Between Two Boards
- Mushroom79
- · Replies 4 ·
SIN contest: ballistic missile
- fchen720
- · Replies 3 ·
Why angular momentum changes as star becomes neutron star
- Curious2013
- · Replies 2 ·
Calculating fn on a curved ramp.
- Vontox7
- · Replies 2 ·
Helium balloon problem adiabatic process
- kellya55
- · Replies 1 ·
Physics lab practical (Centripetal Force)
- huymai
- · Replies 1 ·
Fourier transform of a function
- Jalo
- · Replies 8 ·
What is the Tension in the String Holding a Submerged Cork?
- DLH112
- · Replies 3 ·
Electron Through a Magnetic Field
- Jimbo57
- · Replies 2 ·
This is a conceptual question that has to do with SG
- D__grant
- · Replies 7 ·
What is the Area of a Capacitor Plate?
- warnexus
- · Replies 3 ·
Calculating Magnetic Fields in Cylinders w/ Currents
- Jimmy84
- · Replies 1 ·
Determine shortest distance a car could stop without causing serious injury
- cdornz
- · Replies 3 ·
Relative Circular Speed given radius and time
- brh8447
- · Replies 2 ·
Resultant path of particle with perpendicular SHM at ω and 2ω
- sankalpmittal
- · Replies 7 ·
Paper about special theory of relativity
- NNSSA
- · Replies 7 ·
Force acting on a spring (rubber band)
- kotchenski
- · Replies 1 ·
Work, force and displacement directions
- SecretSnow
- · Replies 2 ·
How Small Can a Quantum Well Be for an Electron's Total Energy to Be Zero?
- D__grant
- · Replies 3 ·
Quick Michelson and Moorley question
- Precepts
- · Replies 2 ·
Understanding Normal Force on an Inclined Frictionless Slope
- SecretSnow
- · Replies 6 ·
How Can the Sum of Vectors P and Q Exceed the Magnitude of Vector F?
- physicshawk
- · Replies 1 ·
Simple Harmonic Motion problem 1
- thunderhadron
- · Replies 14 ·
Food calories needed to climb stairs 6 m at 10% efficiency
- shuman0101
- · Replies 1 ·
Finding the acceleration-displacement equation from potential energy
- thunderhadron
- · Replies 4 ·
A cylinder rolls without slipping
- athrun200
- · Replies 7 ·
Electron accelerated through 0.10 m to 2.0×10^7 m/s
- L_0611
- · Replies 30 ·
Why Might This Vector Product Question Be Considered Ambiguous?
- student34
- · Replies 3 ·
Solving equations simultaneously
- jstevenson16
- · Replies 1 ·
Massless beam held against a wall
- bboytymee
- · Replies 4 ·
Kinetic energy of 3 rolling objects
- twerkit
- · Replies 1 ·
Calculating Dissipation of Electric Power in a Circuit
- indojo24
- · Replies 5 ·
How to use prisms to see around corners and reflections
- Molly1235
- · Replies 3 ·
Why is this active filter low pass when gain equals 1 at high frequency?
- theBEAST
- · Replies 6 ·
Data analysis: error calculation
- potatocar
- · Replies 1 ·
Using moment of inertia to get angular speed
- seiya5
- · Replies 1 ·
Find an expression for the electrostatic energy of this charge distribution.
- warnexus
- · Replies 7 ·
What is the relationship between velocity and displacement in a falling object?
- smb360rewind
- · Replies 2 ·
How Does Equilibrium Apply in Calculating Forces on a Sphere and Rod System?
- jiayingsim123
- · Replies 5 ·
Kinetic Energy-Mass conversion
- ShamelessGit
- · Replies 2 ·
Why is my mesh analysis incorrect?
- theBEAST
- · Replies 1 ·
Solving for DeltaX in a Quantum Well: Uncertainty Principle and Energy Analysis
- D__grant
- · Replies 1 ·
Angular Motion Of A Bullet Striking A Door
- Bashyboy
- · Replies 20 ·
When does fluid resistance switch from F=kv to F=Dv²?
- SecretSnow
- · Replies 1 ·
Why is my circuit nodal analysis not giving the correct I_sc value?
- theBEAST
- · Replies 1 ·
Finding Young's modulus from rubber band extension data
- kingstar
- · Replies 3 ·
Friction during pure rolling up an inclined plane.
- AlchemistK
- · Replies 5 ·
Calculating Final Velocities for Identical Plates on Ice
- n_h0987
- · Replies 31 ·
Simple Harmonic Motion Typical Problem
- thunderhadron
- · Replies 2 ·
How Does Phase Affect Direction in Simple Harmonic Motion?
- thunderhadron
- · Replies 2 ·
How Much Ice Remains When Water and Ice Reach Equilibrium in a Styrofoam Cup?
- Wamjam
- · Replies 1 ·
Calculate Angle of Deflection for Curling Stone Collision
- monkeygrif
- · Replies 4 ·
Tension of a string between 2 blocks of equal mass on a flat surface
- livereater
- · Replies 4 ·
What is the relationship between angular velocity and radius in a pulley system?
- wahaj
- · Replies 8 ·
How Do You Calculate Tension and Wave Frequencies in a Supported Wire System?
- zalba
- · Replies 6 ·
Refraction - A fish under water
- rishch
- · Replies 12 ·
Friction force direction with positive defined as forward
- HelloImAsh
- · Replies 1 ·
Calculating Forces with Coulomb's Law: Explanation and Extra Credit Question"
- roske
- · Replies 3 ·
Induced electric field in a solenoid
- richyw
- · Replies 2 ·
Refraction (aperture, apparent depth)
- rishch
- · Replies 7 ·
Angular magnification, given F and di
- Wamjam
- · Replies 1 ·
What Causes the Counterbalancing Force in a Frictionless, Rotating System?
- Bashyboy
- · Replies 9 ·
Finding velocity and acceleration from a 40 yard dash polynomial fit
- dcebb2001
- · Replies 2 ·
How Do You Calculate Torque with Tension and Gravity Forces?
- PhizKid
- · Replies 3 ·
How do wind and air pressure affect a house's roof?
- asheik234
- · Replies 6 ·
Average force exerted by momentum
- PhizKid
- · Replies 1 ·
Design calculations for 55m boat inclined lift system
- davekardle
- · Replies 1 ·
How Does Temperature Affect the Pitch of a Violin Played Outdoors?
- BizzPhizz
- · Replies 5 ·
Are My Physics Solutions Correct?
- pious&peevish
- · Replies 3 ·
Calculating Displacement with Friction and Air Resistance
- ImAlwaysConfu
- · Replies 3 ·
What is the change of momentum of the ball?
- underduck
- · Replies 11 ·
The distance between 2 spheres in pendulum
- Dr.Phy
- · Replies 1 ·
Speed Relative to an Observer on the Ground
- ImAlwaysConfu
- · Replies 1 ·
Variable formula question Why does W2 = 24W1?
- Lo.Lee.Ta.
- · Replies 7 ·
Are the Angular and Linear Velocities of Tractor Wheels Different?
- Bananas40
- · Replies 6 ·
Fraunhofer diffraction with multiple slits and obstacles
- carlosbgois
- · Replies 1 ·
Resulting Torque - F=2.0i+4.4j N, x=3.1m, y=-3.1m
- chemnerd727
- · Replies 1 ·
How High Does the Force Platform Indicate the Athlete Jumped?
- szimmy
- · Replies 4 ·
Finding the Mass of a 1m Measuring Stick Balancing a 2kg Rock
- Lo.Lee.Ta.
- · Replies 2 ·
How Does Nozzle Elevation Affect Water Flow and Pressure in a Hose System?
- asheik234
- · Replies 3 ·
Bulk Modulus of unknown material
- wowyogurt
- · Replies 2 ·
Solving Energy Conservation for Pendulum Movement
- jim the duke
- · Replies 23 ·
How Does Shrinking Affect the Rotation Speed of a Planet?
- jim the duke
- · Replies 3 ·
Mass hanging from a flexible wire
- ASmc2
- · Replies 10 ·
Work done through linear expansion
- LadyMario
- · Replies 2 ·
What is the mass's total acceleration at the bottom of its swing?
- riseofphoenix
- · Replies 10 ·
Introductory relativity question
- CAF123
- · Replies 5 ·
Why does pulling dumbbells inward increase angular speed and kinetic energy?
- Bashyboy
- · Replies 17 ·
Error propagation of q=mcdeltat
- Duderonimous
- · Replies 1 ·