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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One-dimensional lattice (electrostatics)
- asi123
- · Replies 4 ·
Watermelon and Superman experiment
- BMWPower06
- · Replies 1 ·
Total outward force of molasses on cylindrical tank
- kurosaki_ichi
- · Replies 15 ·
Calculating Electric Fields Using Coulomb's Law
- AbbyGirl
- · Replies 2 ·
Calculating Normal and Frictional Forces on a Parked Car on an Inclined Road
- luap12
- · Replies 2 ·
How Do You Square Cosine B?
- chemic_23
- · Replies 4 ·
Find out the number of batteries needed to power 5 devices of 12V for 18 hours
- jesschin
- · Replies 3 ·
An electron moving across capacitor problem
- KillerZ
- · Replies 3 ·
Electric Fields, Finding the zero field point
- Oblivion77
- · Replies 11 ·
Kite string force, negative or positive>
- 2clients
- · Replies 1 ·
Friction, Forces, Coefficient of Friction (True/False) Simple
- FAJISTE
- · Replies 2 ·
Calculating Work Required to Move a Point Charge of +8μC from (0,4m) to (3m,0)
- jan2905
- · Replies 9 ·
Angular velocity- pendulums and ideal springs
- chantalprince
- · Replies 4 ·
Calculating the magnitude of the net force bewteen charges
- thrills4ever
- · Replies 5 ·
Gauss's Law and charge distribution
- KillerZ
- · Replies 3 ·
Solve the Ball Collision Problem: Angle α and Friction!
- Copycat91
- · Replies 4 ·
Model of intrinsic semiconductor behaviour
- jclough
- · Replies 1 ·
An airplane flying with a velocity
- spacecadette
- · Replies 12 ·
Calculating Speed of a motion of a Circular Object
- Jordash
- · Replies 3 ·
Writing Equations for Position, Velocity, and Accelerations as functions of time
- Jordash
- · Replies 3 ·
How Do You Approach an Irregularly Shaped DC Circuit Problem?
- Elbobo
- · Replies 7 ·
Simple Harmonic Motion and the Reference Circle
- chantalprince
- · Replies 8 ·
Where along line is electric field zero?
- Neliel06
- · Replies 2 ·
Coulumb's Law and force between charge
- thrills4ever
- · Replies 4 ·
Finding net force and acceleration of a 75 kg couch pushed with 30 N
- Lemon Mint
- · Replies 5 ·
3-Step Process of a Simple RC Circuit with Battery and an Open Switch
- jan2905
- · Replies 11 ·
What Is the Cost to Operate a Transistor Radio for 300 Hours on Household Power?
- wakefreak90
- · Replies 3 ·
Why Does Gauss' Law Seem Contradictory Outside a Charged Sphere?
- joker_900
- · Replies 4 ·
Difference between calcultaed slope and slope given on the graph?
- science_rules
- · Replies 1 ·
Why can't radio 4 FM reach listeners in deep valleys?
- manjula
- · Replies 1 ·
What is the Meaning of Cylindrical Vectors in Relation to Cartesian Vectors?
- salman213
- · Replies 5 ·
Displacement and Average Velocity of a Whale
- Turquoise
- · Replies 4 ·
2008 F=ma Olympiad Problems # 10 + 11
- k1point618
- · Replies 8 ·
Understanding Electric Dipoles: Calculating the Electric Field Strength
- jan2905
- · Replies 3 ·
Power line transmission question
- maccha
- · Replies 3 ·
Waves traveling through a string
- j88k
- · Replies 6 ·
How Much Energy Keeps a Rope Oscillating for 6.25 Seconds?
- danvazb
- · Replies 1 ·
Resistor removed from circuit, which of the following will decrease?
- jan2905
- · Replies 10 ·
Electric field from charged disk vs ring at distance 2.60R
- jrz5036
- · Replies 1 ·
Finding alpha when magnitude of vector sum equals 5 m
- blazeuofa
- · Replies 7 ·
Why does bulb A brighten when a wire shorts bulb B?
- Elbobo
- · Replies 7 ·
Trajectory and parametric equation
- crystalplane
- · Replies 2 ·
What is the tension in the string?
- I_LuV_FiZiX
- · Replies 5 ·
How Thick Would an Infinite Plate Need to Be to Mimic Earth's Gravity?
- quantize
- · Replies 2 ·
Radioactive Decay and Linear Graphing
- nmacholl
- · Replies 9 ·
Can the Catapult Clear the Wall Without Violating Safety Rules?
- darkblue
- · Replies 1 ·
When can two events never be simultaneous in any frame?
- theneedtoknow
- · Replies 1 ·
Energy conservation used to predict speed?
- chops369
- · Replies 5 ·
What is phase and phase shift in sine curves?
- Rola
- · Replies 9 ·
Height and Pressure Relating the Two
- kurosaki_ichi
- · Replies 21 ·
Water pipe radius when height increases 3 m at constant pressure and speed
- student 1
- · Replies 7 ·
Where Are the Hidden Loops in My Circuit?
- summersun
- · Replies 1 ·
What Is the Pressure of 3.2gm of O2 Gas in a 4000ml Container at 100°C?
- Heila
- · Replies 7 ·
Galvanometer, motor, magnetism, and transformer questions
- Kwamw
- · Replies 1 ·
How to Find the Wind Component Parallel to a Dash Vector?
- -EquinoX-
- · Replies 14 ·
Tension in ropes unevenly supporting a beam
- Shambles
- · Replies 1 ·
Is Using the Tangent Direction to Determine dl in Work Calculation Incorrect?
- Niles
- · Replies 14 ·
Impulse on a sliding block attched to spring
- jan2905
- · Replies 4 ·
Second order angle for 400nm light through diffraction grating
- seanmcgowan
- · Replies 5 ·
Fission vs Fusion: Which is More Economically Feasible?
- Precursor
- · Replies 1 ·
How Far Must a Rocket Travel from Earth to Weigh 1/100th of Its Surface Weight?
- Stratosphere
- · Replies 6 ·
How Fast Was the Bullet After Passing Through the Ballistic Pendulum?
- shigami117
- · Replies 1 ·
Particle Falling g=1m/s^2 how much time does it take to fall?
- Jordash
- · Replies 4 ·
Electron and parallel plate question >
- HelloMotto
- · Replies 3 ·
Proton Speed in Constant Magnetic Field
- jan2905
- · Replies 1 ·
Describe the electron's subsequent circular motion
- jan2905
- · Replies 1 ·
Quantum physics and wave lengths
- poohead
- · Replies 3 ·
Disk on a Plank Acceleration and Displacement Calculations
- sjewenp
- · Replies 2 ·
Solving the Puzzle: How Does the Magnetic Field Affect Balance?
- caljuice
- · Replies 3 ·
What are the equations and solution for electrostatics?
- asi123
- · Replies 3 ·
Catapult Projectile Question wow
- dkbuono
- · Replies 4 ·
Electric fields created by charged particles
- perfection256
- · Replies 1 ·
Calculating center of mass and moment of inertia using integrals.
- m00npirate
- · Replies 3 ·
Charged object in uniform electric field with force equal to weight
- m_physics
- · Replies 1 ·
Calculating Minimum Radius for Circular Motion in a Vertical Loop
- Thereheis
- · Replies 3 ·
AP Question involving Ideal Gas Law - Thermal Physics - Pressure
- Mafi0z
- · Replies 7 ·
1LoT, heat needed to raise the temperature of oxygen.
- lawtonfogle
- · Replies 1 ·
Grasshopper displacement vectors using component method
- Vane9488
- · Replies 11 ·
Gravitational potential of a thin ring
- DerekDnl
- · Replies 1 ·
Net Electrostatic Force on a neg charge next to a pos charge inbetween a field
- hopeless123
- · Replies 2 ·
Spherical surface surrounding charges find flux
- phys62
- · Replies 11 ·
How to find the force of particles
- itsmarasilly
- · Replies 3 ·
Collisions/Projectile Motion (AP Free-response)
- TheFireFox
- · Replies 1 ·
Ding! Deep Drive to Center: Tracking the Ball's Flight
- hthorne21
- · Replies 4 ·
Two Objects, Constant Acceleration, 1D Forces, Collision Question
- Hotsuma
- · Replies 2 ·
Projectile Motion/Dropping an object from the sky
- Amber430
- · Replies 8 ·
How do you calculate tension in the string?
- hellokitty
- · Replies 3 ·
Understanding Sound Frequency: How It Remains Consistent Across Air and Water
- jan2905
- · Replies 1 ·
Rearranging period equation for suspended beam length
- dwartenb89
- · Replies 1 ·
Standing Waves: 2m, 1m, 4m, 1.5m, 67cm - Which Doesn't Fit?
- jan2905
- · Replies 1 ·
How Does a One-Dimensional Impulse Force Affect an Object's Motion?
- 04yellowgt
- · Replies 2 ·
Doppler Effect: Sound Level at 40m from Source of 20dB
- jan2905
- · Replies 2 ·
Finding Rectangular Coordinates
- Jordash
- · Replies 3 ·
I have no idea where to start with this plane mirror question
- thundercats
- · Replies 2 ·
Where Can I Find Old AP Physics Multiple Choice Questions?
- marutisuzuki
- · Replies 1 ·
How Do You Calculate the Charges on Two Repelling Particles?
- fallen186
- · Replies 1 ·
Which takeaway arrives first, Ludo's Pizza or Moonlight Indian
- ViralRiver
- · Replies 11 ·
How High to Drop a 1kg Mass to Gently Touch an Egg with a Spring?
- marc16250
- · Replies 4 ·
Finding the Angle in Projectile Motion
- Robotics 1764
- · Replies 1 ·
Kichoff Simultaneous Equations
- jase951
- · Replies 11 ·