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 the Invariant Interval for Two Events
- joriarty
- · Replies 2 ·
Do Objects of the Same Material Always Share Identical Internal Energies?
- cathole
- · Replies 2 ·
What is the wavelength of the sound waves?
- look416
- · Replies 3 ·
Drag acting on ball the moment it bounces
- Darkmisc
- · Replies 2 ·
Multiple Choice problem (internal energy)
- cathole
- · Replies 12 ·
Kinetic Friction and Newtons 2nd Law
- larryboi7
- · Replies 1 ·
Which Model Explains Light Polarization: Ray Optics or Particle Model?
- Jimmy25
- · Replies 5 ·
Calculating k in Transposed Formula for Periodic Motion?
- TyErd
- · Replies 4 ·
How do I calculate the factor of safety for a prismatic bar under tension?
- Kazaam
- · Replies 1 ·
Understanding the Right Hand Rule for Rotational Dynamics
- bjt223
- · Replies 1 ·
Potential difference in circuits
- lha08
- · Replies 5 ·
Friction forces on ball hitting wall
- Darkmisc
- · Replies 13 ·
Simple Vector Diagram, Help with Unclear Wording
- Gibson29
- · Replies 1 ·
Quantity of Heat/Specific Heat Water+Iron
- Kaleb
- · Replies 3 ·
Calculation loss of energy due to friction?
- okgo
- · Replies 2 ·
How Far Apart Are Two Astronauts After Pushing Off Each Other?
- zeromodz
- · Replies 3 ·
Where Is the Center of Gravity of a Plywood Sheet with a Quadrant Removed?
- kingofretards
- · Replies 3 ·
Hockey Puck with work done by friction.
- blongmoua
- · Replies 4 ·
Calculating exit velocity of a projectile
- zkyzcArn
- · Replies 2 ·
Normalizing wave function, factor of 2 out
- Frinkz
- · Replies 4 ·
Determing frequency shift of an ultrasound
- grigri9
- · Replies 1 ·
Finding the value of support and friction force?
- HazelDryad
- · Replies 3 ·
How Does Increasing Rotation Frequency Affect Centripetal Force?
- SHENGTON
- · Replies 8 ·
Basic Question about vectors in polar coordinates
- bon
- · Replies 1 ·
Calculating Energy and Height of Acrobat on Skis
- hcps-chent1
- · Replies 4 ·
What Is the Energy of a Viscously Damped Spring-Mass System?
- jchojnac
- · Replies 6 ·
Static Equilibrium: Solving Homework Problem
- *Jim*
- · Replies 2 ·
Calculate Hang Time of 2D Projectile Motion - TS
- ThetaPi
- · Replies 3 ·
Finding Acceleration: Motorist Travels 0.2km in 45-99km/h
- adoado
- · Replies 2 ·
Finding Acceleration Homework Solution
- gaobo9109
- · Replies 5 ·
Circular motion - plane going around a loop
- Bensky
- · Replies 5 ·
Calculate Density of Sphere: Mass, Diameter & Volume
- anoel
- · Replies 1 ·
Decending Lunar lander velocity
- Susanne217
- · Replies 5 ·
Calculating Orbital Distance for a Satellite in Circular Orbit around Mars
- Dark_Dragon
- · Replies 4 ·
The value of the friction force
- HazelDryad
- · Replies 1 ·
Centripetal Acceleration & Frictional Force
- amaryllia
- · Replies 1 ·
Magnetic Field of Charged Capacitor: Calculating E & B Fields
- fedderenator
- · Replies 10 ·
Calculate Change in Entropy of Ice Cube-Water System
- asdf122345
- · Replies 1 ·
What is the maximum weight in equilibrium?
- ShuhKebab
- · Replies 1 ·
Energy in a capacitor in an RC circuit.
- Brewer
- · Replies 6 ·
Were is the electric field zero?
- blackblanx
- · Replies 6 ·
Comparing Work Done with Large & Small Masses
- jwxie
- · Replies 2 ·
Bizzare question on friction constant
- pfssassin
- · Replies 2 ·
Visualizing a Cone with Constant Altitude and Variable Radius
- regnar
- · Replies 6 ·
Maximum Compression and Speed of a Spring-Box Collision
- erok81
- · Replies 1 ·
Monatomic ideal gas thermodyanmics
- ThemeZai
- · Replies 2 ·
What Is the Driving Frequency of a Harmonic Oscillator with Given Parameters?
- rockettanakit
- · Replies 2 ·
Can You Conduct Schrödinger's Cat Experiment at Home?
- aaron12
- · Replies 9 ·
What is the Calculated Value of the Hubble Constant from Galaxy Observations?
- Solomon9$
- · Replies 6 ·
Solve Concave Mirror Problems: Find Image Distance & Focal Length
- matt72lsu
- · Replies 4 ·
Why Do Shadows Bend When Objects Come Close Together?
- ariou
- · Replies 1 ·
Car-Minivan Collision: Final Velocity Vector
- Sudipta360
- · Replies 3 ·
Damped spring (no driving force)
- mathman44
- · Replies 1 ·
Creative Egg Drop Project Ideas without Restrictions | Homework Help
- YouDontKnowMe
- · Replies 15 ·
Work done by a moving conductor in a magnetic field
- chris19802
- · Replies 2 ·
Physics Elastic Collision Question
- eo1989
- · Replies 21 ·
Wheel Rotation: Force, Mass, Radius, Acceleration
- Cherrybawls
- · Replies 3 ·
Inclined Surface: Velocity and angle of incline
- Svensken
- · Replies 4 ·
How to Calculate Focal Length of a Convex Mirror?
- matt72lsu
- · Replies 2 ·
Height of Mirror Needed to See Table in Mirror
- matt72lsu
- · Replies 4 ·
Find Force Exerted on Soccer Ball, Impulse Q Homework
- Phantobe
- · Replies 1 ·
Work, energy, and power problem
- sammyj9301
- · Replies 1 ·
Weight Component: Find Force Components for Box on Inclined Surface
- spdowind
- · Replies 3 ·
Index of Refraction and actual location of fish in water
- skibum143
- · Replies 15 ·
Calculating Torque for a Moving Vehicle Wheel: A Solid Disc Approach
- ar202
- · Replies 16 ·
Determine whether a set is subspace or not
- mithila
- · Replies 1 ·
Normal Force and Force of Gravity: When and why are they equal?
- Trooper100
- · Replies 5 ·
How to Calculate Total Kinetic Energy of a Car with Rotational Motion?
- Newton=boss
- · Replies 3 ·
Conceptual Torque/Angular Momentum question
- mc8569
- · Replies 1 ·
How Does Doubling the Force Affect the Speed of an Arrow?
- EdoMan
- · Replies 2 ·
Velocity of rain in different reference frames
- dink87522
- · Replies 1 ·
How Does Water Affect the Angle of Diffraction for Light Through a Single Slit?
- whiteman
- · Replies 1 ·
Period of Oscillation of Steel Ball
- mmmboh
- · Replies 1 ·
What does momentum conservation reveal about period and mass of binary systems?
- FelixISF
- · Replies 1 ·
How Do Shaving Mirrors Magnify and Project Images?
- matt72lsu
- · Replies 3 ·
Proving tensor symmetry under transformation
- Hendrick
- · Replies 1 ·
Calculating Energy in an RC Circuit
- Jahosaphatz
- · Replies 1 ·
Finding a Complex Number w for Fifth Roots of 1 - Need Help?
- Procrastinate
- · Replies 1 ·
Calculating the overall uncertainty of my measurements
- cosmicaa
- · Replies 1 ·
Spherical shell rolls down a ramp with friction-time?
- therest
- · Replies 1 ·
What is the Equation for Calculating the Mass of the Sun?
- Dark_Dragon
- · Replies 4 ·
Calculating Rotational KE: Thin Square Slab with a Horizontal Axis"
- sheepcountme
- · Replies 4 ·
What is the maximum speed and acceleration of a train on a big dipper?
- lemon
- · Replies 2 ·
How Do You Calculate the Moment of Inertia for a Rotating Slab?
- sheepcountme
- · Replies 11 ·
Pressure & Volume Homework: Find V2 @180°C, P Constant
- Minho
- · Replies 1 ·
Static friction on objects resting on a rotating surface
- Darkmisc
- · Replies 4 ·
2 Block and a pulley(has mass) system
- okgo
- · Replies 1 ·
LC Circuit with DC power supply
- Mola
- · Replies 5 ·
Total angular momentum of a sphere that had both a linear v and an angular v?
- therest
- · Replies 1 ·
Angle between two pool balls in an elastic collision
- spursfan2110
- · Replies 16 ·
Solving a Hinged Coil's Equilibrium Angle in a Magnetic Field
- anonymousphys
- · Replies 1 ·
What is the energy of a 0.07078nm photon?
- XTEND
- · Replies 4 ·
Impulse and momentum homework help
- jwxie
- · Replies 1 ·
How many revolutions will a centrifuge rotor make before coming to rest?
- Newton=boss
- · Replies 5 ·
Why Does the Integral Over a Closed Surface Equal Zero?
- meteorologist1
- · Replies 7 ·
Describe the motion of free fall from different observators
- fluidistic
- · Replies 2 ·
Capacitive level sensor for liquids
- fuzzytoad
- · Replies 1 ·
Calculating Magnetic Flux from a Solenoid with Given Parameters
- Slimmy
- · Replies 2 ·
Q6A4-from london to paris with gravity
- lemon
- · Replies 9 ·
How Do You Solve These Balance Beam Problems?
- slynn2008
- · Replies 3 ·