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 height of the wedge?
- imdiskid06
- · Replies 3 ·
Which sphere has greater moment of inertia, wood or iron with the same diameter?
- Amith2006
- · Replies 3 ·
Number of Electrons on Sphere: Can't Figure It Out?
- the_d
- · Replies 1 ·
Non-constant acceleration not sure how to solve
- anthonytw
- · Replies 7 ·
Diffraction grating white light problem
- twiztidmxcn
- · Replies 4 ·
How long does it take the object to reach the ground?
- Signifier
- · Replies 5 ·
Hydrostatic pressure paradox: same depth, same bottom pressure, different weights
- physicsss
- · Replies 3 ·
Final temperature of sliver ring in calorimeter
- LezardValeth
- · Replies 1 ·
Time Dilation spacecraft watches
- crazynut52
- · Replies 8 ·
Car Braking: Calculating Acceleration from Applied Force
- msimard8
- · Replies 3 ·
Calculating Force of Friction on 8.1g Bullet in Rifle Barrel
- zolloz89
- · Replies 2 ·
Always centripetal force when object in circular motion?
- something_about
- · Replies 10 ·
What is the missing angle in a system of concurrent parallel forces?
- kgbwolf
- · Replies 9 ·
How Fast Was the Ball Thrown in This Projectile Motion Problem?
- Jordan_
- · Replies 3 ·
Calculating Frequency Shift in the Doppler Effect for Submarine Sonar Waves
- BoogieL80
- · Replies 2 ·
EM theory and therom dynamic books
- Gamma
- · Replies 4 ·
Concurent and Parallel Forces 2
- kgbwolf
- · Replies 2 ·
Largest distance between rings for mass in equilibrium with friction
- wayneo
- · Replies 10 ·
Kinetic and gravitational energy
- msimard8
- · Replies 4 ·
Intensity from a multi slit grating
- UrbanXrisis
- · Replies 1 ·
Deriving moment of inertia for a thin spherical shell
- dowjonez
- · Replies 2 ·
Proving sin(b_n)=(n*lambda)/d for double-slit interference
- MathematicalPhysicist
- · Replies 1 ·
How Does Light Refraction Affect Displacement in a Glass Medium?
- Pixter
- · Replies 3 ·
Calculating Induced EMF for Moving Loop in Uniform Magnetic Field
- Pixter
- · Replies 6 ·
Which way do magnetic field lines go through a coil?
- PPonte
- · Replies 2 ·
Oscillations and Waves of a spring
- ilovephysicssomuch
- · Replies 4 ·
How did Hertz produce radio waves in his laboratory experiment?
- MPonte
- · Replies 4 ·
How Do You Solve These Wave and Phase Calculation Problems?
- Ishu
- · Replies 6 ·
Difference between the north and south poles of a magnet
- MPonte
- · Replies 6 ·
Solve Physics Problem: Car Speed at Homecoming Event
- pureouchies4717
- · Replies 3 ·
Finding magnitude and direction of vectors A, B, and A + B
- CSpenceTTU
- · Replies 4 ·
Why Does the Resistance Need to Match for Max Energy Transfer?
- Psi-String
- · Replies 5 ·
Two Identical Spheres and Displacement
- F.B
- · Replies 1 ·
How to find instantaneous velocity at t = 3.5 s for a race car
- Rymac
- · Replies 1 ·
Why there is no electric field outside of the sphere
- brad sue
- · Replies 1 ·
Can a Plane Take Off from a Backward-Moving Runway?
- Eivind
- · Replies 1 ·
The Who Must Apply the Larger Force to Sweep?
- msimard8
- · Replies 2 ·
How Do I Calculate Velocity from Mass and Kinetic Energy?
- truckerron1
- · Replies 4 ·
Why are pounds treated as force not mass in work calculations?
- opticaltempest
- · Replies 2 ·
Sketching the [0-1-1] Direction and Its Relationship to {110} and {111} Planes
- JSBeckton
- · Replies 3 ·
Differential Equations Describing Magnetic Fields Around Magnets
- EroticNirvana
- · Replies 3 ·
What's the meaning of the Cartesian coordinates of the atom?
- zsglly
- · Replies 8 ·
Magnitude of the tension on the ends of the clothesline?
- UrbanXrisis
- · Replies 6 ·
Stepping off a canoe onto a dock
- msimard8
- · Replies 1 ·
An electron is released from rest in a uniform electric field
- hitek131
- · Replies 1 ·
Solving Significant Figures Dilemma: James' Question
- James_fl
- · Replies 5 ·
Solving Beat Frequency Woes: Physics Exam Prep
- Batmaniac
- · Replies 5 ·
Why is torque defined as force times distance?
- G01
- · Replies 5 ·
Maxima Detection: Solving a 750MHz Wave Question with Two Radio Antennas
- zhen
- · Replies 4 ·
Why does sprinkling of water reduces temperature of a closed room?
- gaganpreetsingh
- · Replies 5 ·
Why is my potential to kinetic energy conversion percentage too high?
- chrisdapos
- · Replies 17 ·
What is the Relationship Between Heat Capacity and Temperature Change in a Room?
- TSN79
- · Replies 4 ·
Concerning Significant Figures.
- Mozart
- · Replies 8 ·
Calculating Linear Expansion of Iron Rod for 2.51cm Ring Diameter
- furielrage
- · Replies 1 ·
Induced current direction when a metal loop distorts in a magnetic field
- Solidmozza
- · Replies 8 ·
How Could You Distinguish Between an Alpha and a Beta Particle?
- voodoomagic
- · Replies 3 ·
Fluid Mechanics of a weather balloon
- python023
- · Replies 10 ·
Kinematics to the millionth POWER
- DaMastaofFisix
- · Replies 2 ·
Calculating Water Velocity Using Bernoulli's Equation
- Gamma
- · Replies 4 ·
Deriving the Time Period Equation for a Simple Pendulum
- Hootenanny
- · Replies 20 ·
Light Bulbs in a parallel circuit
- chemistrykid
- · Replies 3 ·
Solar energy collector formula
- nina
- · Replies 2 ·
Pressure and lift force on a wing
- physixnot4me
- · Replies 1 ·
Solve Rock Problem Part 2: Time to Push 50Kg Rock 10m
- 29 clicks
- · Replies 3 ·
Similarities between a 1 eV electron and a 1 eV photon
- F.B
- · Replies 1 ·
Magnitude of the maximum gravitational force
- iceT
- · Replies 2 ·
Force must be applied to the small piston to lift the engine?
- AdnamaLeigh
- · Replies 1 ·
Air blown through a T-shaped tube with constriction in liquid
- bobash69x2
- · Replies 1 ·
Projectile launch angle when initial speed is 5.2 times speed at maximum height
- scavok
- · Replies 2 ·
Determine the period of the oscillations
- physixnot4me
- · Replies 3 ·
Calculating Angular and Linear Acceleration in a Vertical Plane
- dvvz2006
- · Replies 1 ·
Solving the Problem: Calculating Force on a Rock
- 29 clicks
- · Replies 5 ·
Why Are Velocity vs Time Graphs Challenging?
- metalmagik
- · Replies 1 ·
Can't Seem To Get It Right: Solving Centripetal Acceleration Equation
- scavok
- · Replies 1 ·
Where on the X-Axis is the Electric Field Zero Between Two Charges?
- kkurutz
- · Replies 7 ·
Average velocity for a two-part journey at different speeds
- CrusaderX
- · Replies 1 ·
What is the correct equation for calculating the frequency of red light in air?
- Anieves
- · Replies 1 ·
Velocity and Acceleration understanding
- mrserv0n
- · Replies 3 ·
Circuit diagram with two dry cells and two bulbs in parallel
- chemistrykid
- · Replies 1 ·
How Do You Calculate Wave Speed Using the Wave Equation?
- Ishu
- · Replies 6 ·
Finding final velocity with conservation of momentum
- kgbwolf
- · Replies 20 ·
Question on Equation Rearranging
- nicole
- · Replies 2 ·
How Does the Berthelot Equation Relate v/T and R/P as T Approaches Infinity?
- andytran
- · Replies 1 ·
Fluid Mechanics: Worked Out Problem, Check Work?
- verd
- · Replies 1 ·
Difference between sound intensity level and sound pressure level
- Gamma
- · Replies 2 ·
Calc Fall of Object from Space: Derive Eqn of Accel as Fxn of Time
- recon
- · Replies 4 ·
Work-Energy: Finding Speed of Pendulum Bob at Position B
- neoking77
- · Replies 2 ·
How to Calculate the Required Angular Velocity of an Ultracentrifuge?
- courtrigrad
- · Replies 1 ·
Relationship of temperature and radius.
- darkar
- · Replies 2 ·
Snowboarder velocity after landing on 45-degree slope
- yoshele
- · Replies 12 ·
Direct measurement of Kinetic Energy
- kfstarrs
- · Replies 5 ·
Vectors in the direction of axis
- dbone_7
- · Replies 9 ·
Buoyant force on barbell and hydraulic press force
- jkd989
- · Replies 5 ·
Barbell in water and hydraulic press force problems
- jkd989
- · Replies 1 ·
Software to create physics diagrams
- Gamma
- · Replies 2 ·
What Are the Physics Equations Behind Zero-G Rolls in Roller Coasters?
- physicsCU
- · Replies 1 ·
Fluid Mechanics: Hydraulic Lift
- verd
- · Replies 1 ·