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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Why do my SHM calculations give different answers than the textbook example?
- KiNGGeexD
- · Replies 7 ·
Finding Angular Speed Using Energy Methods
- student34
- · Replies 9 ·
Calculate Solar Energy Incident on Earth at 1.5x10^11 m from Sun
- student123
- · Replies 3 ·
Two Circular Motion Questions. Pendulums
- navm1
- · Replies 19 ·
Charge accumulation using radiation
- mooreppj
- · Replies 5 ·
Conservation of Momentum of a snow ball
- gcombina
- · Replies 4 ·
Depth of a Water Well by dropping a rock
- MienTommy
- · Replies 3 ·
Angular Acceleration Problem - Compact Disc
- gcombina
- · Replies 2 ·
Vectors - velocity is changing but speed is not
- kenji1992
- · Replies 3 ·
Shortening the length of pendulum
- Saitama
- · Replies 46 ·
Kinematics - centrifuging a solution with bacteria
- kenji1992
- · Replies 13 ·
Which Equation Requires Radians to Be Valid?
- gcombina
- · Replies 2 ·
Finding equivalent resistance in a complex combination circuit
- dropgigawatt
- · Replies 2 ·
Gaussian Surface Electric Field Problem
- wompkins
- · Replies 1 ·
Thevenin equivalent with R1=100Ω, R2=1000Ω, R3=99Ω, R4=1000Ω, R5=10Ω
- oddjobmj
- · Replies 15 ·
What is the distance the projectile lands from the base of the cliff?
- kenji1992
- · Replies 1 ·
Show that the dot product is linear: Bra-ket notation
- lausco
- · Replies 3 ·
Maximum unknowns in 2D space statics problem
- Tiven white
- · Replies 2 ·
What Is the Dot Product of Two Parallel Unit Vectors?
- Tiven white
- · Replies 3 ·
Right hand rule three d coordinate system
- Tiven white
- · Replies 2 ·
Is "Position" a Vector or Scalar?
- Tiven white
- · Replies 1 ·
Dot product equals -1: which statement must be true?
- Tiven white
- · Replies 4 ·
Special relativity change in rest mass
- deadscientist
- · Replies 29 ·
Pressure increase in a flexible membrane due to an external force.
- sitting_duck
- · Replies 8 ·
Zero electric field and zero potential relationship
- Hayliee30
- · Replies 1 ·
Finding horizontal position given vertical position in projectile motion
- reddawg
- · Replies 7 ·
Light refracting through a plastic sphere
- majinsock
- · Replies 1 ·
Rearranging Trigonometric Functions
- talknerdy2me
- · Replies 1 ·
Ring of charge electric potential
- Panphobia
- · Replies 7 ·
Electron in equilibrium between two plates
- britt
- · Replies 15 ·
How Does Acceleration Affect a Car's Tire Rotation and Speed?
- johnnyyy
- · Replies 2 ·
Calculating the Speed Needed for a Successful Motorcycle Jump Across a River
- tentoes
- · Replies 5 ·
Calculating Wave Speed and Wavelength for a Vibrating String
- ddsMom
- · Replies 5 ·
Simple Harmonic Motion (Total Energy)
- KiNGGeexD
- · Replies 8 ·
How many unknowns are there in 2-D space?
- Doubell
- · Replies 1 ·
What Is the Speed of a Neutron in Thorium Decay?
- songoku
- · Replies 4 ·
Oscillation in spring mass system questions
- xtrubambinoxpr
- · Replies 2 ·
Thermodynamics - Heat Engine Cycle
- azukibean
- · Replies 6 ·
Prove there exists no combination of speed and angles
- negation
- · Replies 45 ·
Understanding Coulomb's Law for Electric Fields and Forces
- shivani010
- · Replies 7 ·
Electron accelerated though constant E field
- deadscientist
- · Replies 1 ·
Mass on spring: max speed, energy, and acceleration at half max speed
- ddsMom
- · Replies 4 ·
A comet revolves around the sun
- Calabi_Yau
- · Replies 5 ·
Simple Harmonic Motion vibrations
- luiseduardo
- · Replies 9 ·
Work in a thermodynamic process
- RslM
- · Replies 2 ·
Electron accelerated between plates
- pengumon
- · Replies 1 ·
Converting specific heat from cal/g·°C to Btu/lb·°F
- tj19926
- · Replies 14 ·
Can the Vector Scalar Product Equation be Solved for x Using Cross Product?
- elevenb
- · Replies 17 ·
Identical objects carry a net charge
- physicsSOS
- · Replies 1 ·
Simplifying an Equation with Taylor Series Expansion
- hermano
- · Replies 6 ·
Where Does the Electric Field Cancel Between Two Unequal Charges?
- calculator20
- · Replies 5 ·
Translational KE, specific heats at constant volume and pressure
- castrodisastro
- · Replies 8 ·
Electric potential outside of a parallel-plate capacitor
- manuel325
- · Replies 2 ·
Finding coaxial cable length from signal reflection delay
- xWaffle
- · Replies 4 ·
Traffic Shockwave Physics Topic
- Pmand92
- · Replies 12 ·
Finding rope tension and acceleration between two objects
- Curtis
- · Replies 2 ·
Time Flowing with Falling Stick
- jordanhuh
- · Replies 1 ·
Solve Electrostatic Forces Homework: Tension & Charge
- drmjj55
- · Replies 1 ·
What is the potential at point P at the center of this arc?
- bbuilder
- · Replies 6 ·
Projectile Problem: Solving an Artillery Shell Problem
- Zdub311
- · Replies 3 ·
Physics problem on power involving escalators
- brnnpink4
- · Replies 1 ·
Tangential Acceleration and Gravity in a moving car
- Conservation
- · Replies 3 ·
Artillery projectile motion problem
- Zdub311
- · Replies 1 ·
Finding the instantaneous power
- theBEAST
- · Replies 1 ·
RMS speed when doubling gas molecules at constant volume and pressure
- lbumbalo
- · Replies 1 ·
Spring problem on work and force
- brnnpink4
- · Replies 2 ·
Finding velocity components with Forces?
- JessicaJ283782
- · Replies 2 ·
How Much Helium Can a 11m Diameter Balloon Hold and What Can It Lift?
- annas425
- · Replies 2 ·
First minimum angle with 8 diffraction slits using phasor analysis
- Scientist94
- · Replies 6 ·
Pinball machine problem on energy/power/work
- brnnpink4
- · Replies 3 ·
Find the net electric field at the center of the foil
- Lee33
- · Replies 2 ·
Box problem on work/force/energy
- brnnpink4
- · Replies 1 ·
Tarzan/vine physics problem on work/energy/power
- brnnpink4
- · Replies 6 ·
[Physics Equlibrium Question] A spider hanging from two silk threads
- xfi911
- · Replies 3 ·
How Does Electric Field Direction Relate to Equipotential Lines?
- bbuilder
- · Replies 5 ·
Projectile Distance: Earth vs. Moon
- jdawg
- · Replies 4 ·
Failed Torque: My First Posting Experience
- jordanhuh
- · Replies 4 ·
Finding Capacitance from Charged Capacitor Energy and Voltage?
- kkingkong
- · Replies 1 ·
Equivalent resistance in circuits
- princejan7
- · Replies 1 ·
Converting Curved Graph to Linear for Acceleration Calculation
- Akbar123
- · Replies 8 ·
Why Aren't My Calculated Currents Correct in This Circuit Analysis?
- 1/2"
- · Replies 2 ·
Geometric Methods for Adding Vectors: Are You Doing It Right?
- Qube
- · Replies 2 ·
Reducing a circuit to a single impendence value
- cowmoo32
- · Replies 5 ·
Finding Equilibrium State for Two Blocks Connected by Pulley System
- TheFerruccio
- · Replies 7 ·
Calculating Average Net Force Exerted on a 15-g Bullet Fired from a Rifle
- courtney101ann
- · Replies 14 ·
Image Charges and a hollow conducting sphere
- raving_lunatic
- · Replies 1 ·
Electric Field Mapping Lab. Qualitative questions.
- jamesrb
- · Replies 3 ·
Finding the convection of a node in a hot pipe
- theBEAST
- · Replies 4 ·
Bad Question - Average Acceleration
- Qube
- · Replies 2 ·
Two block friction incline problem with rope
- h1a8
- · Replies 2 ·
First Law Thermodynamics Problem
- ruiwp13
- · Replies 9 ·
Momentum and Mechanical Energy.
- alingy1
- · Replies 7 ·
What are all the possible formulas to use for 2D motion with projecti
- stevethaboss
- · Replies 1 ·
Max Height of Object Thrown Vertically
- patelneel1994
- · Replies 9 ·
Basic projectile motion question
- gorays1414
- · Replies 4 ·
Height when a ball is thrown vertically at half its velocity
- Ace.
- · Replies 4 ·
Determine the minimum initial velocity
- derek181
- · Replies 17 ·
What Is the Force on a Point Charge at the Tip of a Hollow Cone?
- Hercuflea
- · Replies 11 ·
How Do You Calculate Energy Stored in Specific Capacitors Within a Network?
- Gwozdzilla
- · Replies 1 ·
Where's The Electric Field 0 Problem
- japhysics
- · Replies 9 ·