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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Where Should a Third Charge Be Placed for Zero Net Force?
- johnnyies
- · Replies 4 ·
Building this graph of simple harmonic motion
- rambo5330
- · Replies 4 ·
How Bohr's angular momentum formula derived?
- nafizkarim
- · Replies 2 ·
Impulse of ball from bat when playing baseball
- student000
- · Replies 1 ·
Vector components problem determinings final kinetic energy
- synergix
- · Replies 2 ·
Change in entropy at constant temperature
- ricof
- · Replies 5 ·
Position as a function of speed
- Johnny Blade
- · Replies 1 ·
Acceleration of free falling object on planet X
- 1irishman
- · Replies 3 ·
Potential difference and charge on 0.2 µF and 0.1 µF capacitors in series
- ardy121
- · Replies 1 ·
Relationship btw volume and temperature of an ideal gas
- n.hirsch1
- · Replies 1 ·
Tension in ropes supporting two hanging balls accelerating upward
- jamessmith
- · Replies 2 ·
Calculating Changes in Coulomb's Law for Charged Spheres
- hallowon
- · Replies 15 ·
At what angle does an object fall off a sphere?
- Inkage
- · Replies 3 ·
Why is the force the same on each spring in series?
- Morass
- · Replies 1 ·
Max/min values of v before m slips
- holezch
- · Replies 1 ·
Harmonic motion, finding analytic expressions for constants
- Linus Pauling
- · Replies 1 ·
When A Mass is Falling from an Inclined Plane
- Procrastinate
- · Replies 3 ·
Helium-filled balloon tied to mass
- Linus Pauling
- · Replies 3 ·
Uniform Circular Motion of a motorcycle
- ShamTheCandle
- · Replies 2 ·
Find the mass of the merry go round: conservation of angular momentum?
- n.hirsch1
- · Replies 3 ·
Calculating density of an ideal gas
- kalisious
- · Replies 7 ·
How Do You Calculate the Coefficient of Friction in a Spring Problem?
- synergix
- · Replies 1 ·
Calculating Wind and Quadratic Drag on a Golf Ball in Flight
- mysticjbyrd
- · Replies 6 ·
How do you calculate force when lifting a barbell and holding it statically?
- waynexk8
- · Replies 6 ·
Confusing Angular Momentum problem with Door
- chaostheory13
- · Replies 2 ·
Understanding Faraday's Experiment and Electric Flux
- A7m3D
- · Replies 2 ·
How Does Dancer Movement Affect the Center of Gravity on a Dance Floor?
- lilaznjewel
- · Replies 2 ·
Calculate Effective Spring Constant of Springs in Parallel
- Morass
- · Replies 8 ·
How far does a box slide with initial speed 4.1 m/s and friction coefficient 0.18?
- tigerwoods99
- · Replies 16 ·
Calculating Final Speed of Engine-less Space Capsule Launched from Earth
- r_swayze
- · Replies 7 ·
Moment of Inertia problem with multiple masses
- amcelroy13
- · Replies 3 ·
Algebra: show that x > 1 is prime
- Vince00
- · Replies 3 ·
Stress and Strain/ Hooke's Law Question
- swifel7
- · Replies 9 ·
Free resources for researching vehicle drag and aerodynamics
- natalieng
- · Replies 3 ·
Revolutions of a Sphere on an Incline
- yankeekd25
- · Replies 2 ·
Mplitude of a pendulum from an angle vs time graph
- MisterM
- · Replies 2 ·
How Does Changing Slit Separation Affect Wavelength in a Two-Slit Experiment?
- conniechiwa
- · Replies 11 ·
Vertical simple harmonic motion concept
- caljuice
- · Replies 1 ·
Calculating Maximum Motion from a Light Vertical Spring
- bricker9236
- · Replies 2 ·
Why does isentropic compression increase temperature in the Otto cycle?
- kamranonline
- · Replies 2 ·
Elastic Collision and speed of a ball
- Atlos
- · Replies 3 ·
Calculating Force for Torque: Understanding Proper Spark Plug Tightening
- IAmSparticus
- · Replies 3 ·
How Is Maximum Force Calculated from Impulse in a Bouncing Ball Scenario?
- merzperson
- · Replies 1 ·
How High Will a Lighter-Than-Water Ball Shoot Above the Surface?
- thrill211
- · Replies 2 ·
Calculate Molar Specific Heat of Substance: 284J, 22.0°C to 39.5°C
- G-reg
- · Replies 1 ·
Particle physics / ideal gas problem
- greenskyy
- · Replies 2 ·
The Ol' Spring and Bullet Combo
- physicsbro
- · Replies 2 ·
Decay contant of xenon and strontium
- cowboi123
- · Replies 1 ·
Angular Momentum of Ice Skater: 881.93kg m2/s
- joebob
- · Replies 4 ·
Golf ball wind deflection calculation giving unrealistically small values
- mysticjbyrd
- · Replies 12 ·
Rotational kinetic energy of a flywheel storing motor energy
- physicsbro
- · Replies 8 ·
Use the properties of logarithma to xpand the logarithmic function
- Ki-nana18
- · Replies 4 ·
Thermodynamics / micro/macro connection problem
- greenskyy
- · Replies 4 ·
Adiabatic expansion of a balloon
- gmarc
- · Replies 9 ·
Electric force acting on a single charge
- kivine
- · Replies 7 ·
Rotational Motion of a Hanging Mass
- interxavier
- · Replies 1 ·
Torque on a current loop about a hinge line
- theowne
- · Replies 1 ·
How to make a series circuit using ?
- andyboy179
- · Replies 4 ·
How Is Work Calculated in These Two Physics Problems?
- Underdog_85
- · Replies 22 ·
Newton's Laws o motions - two wedges - one sliding over the other
- dharavsolanki
- · Replies 3 ·
Beam suspended from a wall question
- OutofStyle004
- · Replies 1 ·
Why doesn't the center of mass divide an object's mass in half?
- BioGuy
- · Replies 4 ·
Why Can't I Solve Physics Problems Despite Being Good at Math?
- rudolf141
- · Replies 4 ·
Energy conservative (Kinetic Energy and Potential Energy)
- MechaMZ
- · Replies 6 ·
Does Pressure Affect Tyre Mass?
- captainjack2000
- · Replies 1 ·
Finding the period from displacement and velocity in SHM
- i_heart_you
- · Replies 1 ·
Parallel plate capacitor with dielectric in a gravitational field.
- adwodon
- · Replies 3 ·
Solving -7(1+-4m)=13(2m+-3) for m
- Sailcat
- · Replies 6 ·
Projectile launched from the Moon
- Brad2007
- · Replies 6 ·
Calculating amplitude after 50 oscillations
- marshall104
- · Replies 1 ·
Tennis ball launcher at 45 degrees: finding initial velocity without knowing distance
- gidgetadores
- · Replies 1 ·
Finding typical speed of H₂ molecules from pressure and volume data
- Mr. Goosemahn
- · Replies 3 ·
Ice skater coasting to halt: finding coefficient of friction
- xcsyl
- · Replies 2 ·
Temperature given a ratio of power out/power in
- elmers2424
- · Replies 1 ·
Finding density of metal and plastic from buoyancy measurements
- JJBrian
- · Replies 1 ·
Momentum Broken Plate Problem
- jacksonpeeble
- · Replies 1 ·
Ball and rod, finding when compression force=0
- jromega3
- · Replies 1 ·
Finding force in shot-put and helicopter problems
- ruby1
- · Replies 8 ·
Doppler shift for 1.0 kHz source at half the speed of sound
- Mr. Goosemahn
- · Replies 3 ·
Uniform Magnetic field in a circular coil
- hitman0097
- · Replies 2 ·
Work done by spring with weight to the spring
- NoBodyKnows
- · Replies 1 ·
How Much Energy is Dissipated by Each Resistor in the Circuit?
- troyhagan
- · Replies 3 ·
How Do You Calculate Wavelength and Recoil Velocity in Nuclear Physics Problems?
- suspecteg
- · Replies 1 ·
How Do You Calculate Hickey's Mass from His Skateboarding Speed Change?
- jack612blue
- · Replies 1 ·
Using specific heat stuff to find amount of heat(Q=mCT)
- Raziel2701
- · Replies 2 ·
Time Evolution and Hamiltonian Problem
- phil ess
- · Replies 5 ·
Cart in equilibrium on an incline.
- freeman16v
- · Replies 2 ·
Half-Life Period: Solving Normal Radioactive Rate
- Intelligent-E
- · Replies 3 ·
Finding Two Wave's Common Amplitude
- foundAnAnswer
- · Replies 1 ·
Asteroid: Potential/Kinetic Energy, Angular Momentum
- Emanresu12
- · Replies 1 ·
Finding atmospheric pressure from trapped air in a capillary tube
- Magma828
- · Replies 7 ·
Rotation rate of hour hand on clock?
- BioGuy
- · Replies 4 ·
How Is Amplitude and Total Energy Calculated in a Spring System?
- hangten1039
- · Replies 1 ·
Speed of a rocket between 2 asteroids
- irrek
- · Replies 7 ·
Estimating Car Weight from Tire Pressure
- A_Munk3y
- · Replies 8 ·
Bernoulli's principle- fluids ?
- A_Munk3y
- · Replies 4 ·
Train Acceleration Calculation: Spider on a Web Scenario
- muktl
- · Replies 2 ·
Law of conservation of energy and momentum
- yomama
- · Replies 1 ·
Conservation of Energy/Momentum with Rotation
- kelslee28
- · Replies 3 ·
Relative Motion of a plane in a storm
- retracell
- · Replies 1 ·