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 does a point on a tire rim have acceleration at constant velocity?
- Dmt669
- · Replies 2 ·
What Is the Purpose of the Time Interval in Calculating Instantaneous Velocity?
- the_d
- · Replies 6 ·
Static friction: is it equal to μR or less than or equal to μR?
- Padford
- · Replies 5 ·
IVP prob involving convolutions
- fourier jr
- · Replies 2 ·
Maximum deceleration of plane stopping in 66 m from 58 m/s
- the_d
- · Replies 17 ·
Boat crossing a river at an angle to current
- j_confused
- · Replies 2 ·
Which Matrices Satisfy AB=BA for A=[1 0; 1 1]?
- gunnar
- · Replies 4 ·
Merge and MergeSort Algorithms for Sorting Arrays in Java
- courtrigrad
- · Replies 2 ·
Finding current through the central resistor in a Wheatstone bridge
- adc85
- · Replies 7 ·
Law of conservation of Energy question.
- ultimatejester
- · Replies 2 ·
Angle of projection above an incline?
- Buck268
- · Replies 7 ·
Free body diagrams for forces on a block
- wajhea
- · Replies 10 ·
Divergent improper integral and ellipsoid volume by integration
- chjopl
- · Replies 2 ·
How do I find the definite integral in a changed coordinate system?
- RadiationX
- · Replies 11 ·
How to Calculate Torque for Car Wheels
- hun_nomin
- · Replies 3 ·
Sound coming out of slide whistle
- jai6638
- · Replies 6 ·
What Charge Would Keep the Moon in Orbit and Balance an Electroscope?
- thisisfudd
- · Replies 5 ·
Physics coursework inspire me ;)
- KingAS
- · Replies 6 ·
How do I calculate the instantaneous velocity
- extreme
- · Replies 3 ·
What Formula Should I Use to Solve a Horizontal Projectile Problem?
- xelda
- · Replies 8 ·
How to Solve for Boat Velocity Relative to River
- Spyder1121
- · Replies 8 ·
How Do You Prove the Relationships Between T_n, M_n, and S_{2n}?
- DivGradCurl
- · Replies 2 ·
Fluids and buoyance, determine how much of the cylinder is in the oil
- Rachel C
- · Replies 2 ·
Which one of the following sequences converge
- Benny
- · Replies 13 ·
Creating a Formula: Force of Gravity at Different Elevations
- ChrisP2006
- · Replies 3 ·
Is Weight an External Force in Collision Scenarios?
- primarygun
- · Replies 2 ·
Solving a Projectile Fired from a Ship Problem
- xelda
- · Replies 4 ·
Proving Schwarz's Inequality for Proportional a's and b's
- courtrigrad
- · Replies 10 ·
What is the Relationship Between Time and Total Amount in Simple Interest?
- aisha
- · Replies 22 ·
How Do I Rearrange Doppler Effect Equations to Solve for Specific Variables?
- bbfcfm2000
- · Replies 2 ·
Projectile Motion initial velocity
- ProBasket
- · Replies 4 ·
How Do Brownian Motion and Coin Tossing Relate to Time and Bet Size?
- courtrigrad
- · Replies 13 ·
How Do You Calculate Total Displacement in Physics?
- the_d
- · Replies 25 ·
How Do You Write Net Ionic Equations for These Reactions?
- vsage
- · Replies 1 ·
A couple of questions regarding AREAS (and getting the formulas,etc.)
- mathzeroh
- · Replies 67 ·
Calculating Microwave Energy Deposition for Melting Ice and Boiling Water
- Xamfy19
- · Replies 2 ·
Why does frequency not seem related to pipe length in resonance lab data?
- mgiddy911
- · Replies 2 ·
Neutral object and electric field
- leolaw
- · Replies 3 ·
Hair Curler Surface Calculation with Calculus
- CeeAnne
- · Replies 7 ·
How Does Momentum Transfer Affect Scattering Angles in Rutherford Scattering?
- JamesJames
- · Replies 2 ·
What is the acceleration of a proton in a uniform electric field of 640 N/C?
- ballahboy
- · Replies 9 ·
Astronaut throwing bag and rock: momentum conservation
- Dmt669
- · Replies 9 ·
Probably a rather easy Algebra problem that I am not getting
- The Divine Zephyr
- · Replies 2 ·
Demonstrations and examples for explaining Bohr's model
- courtrigrad
- · Replies 2 ·
Coulomb's Law With Three Particles
- GingerBread27
- · Replies 2 ·
Calculating Dipole Moment of Overlapping Charged Spheres
- quasar987
- · Replies 8 ·
What is the Surface Charge Density on a Long, Uniformly Charged Cylinder?
- Dan104
- · Replies 2 ·
Solving the Atwood Machine - Descending Mass
- shamockey
- · Replies 2 ·
How Much Force Does Stephen Need to Overcome the Brick with a Wheelbarrow?
- ramin86
- · Replies 1 ·
Realtime imaging of static and moving objects
- RT steven
- · Replies 2 ·
12 sticks that cannot form a triangle with any 3 drawn
- aisha
- · Replies 13 ·
Energy released bringing -600nC charge to 1mm from 500nC charge
- DR33
- · Replies 2 ·
Integration by parts on ∫x cos(5x) dx
- digink
- · Replies 11 ·
What is a Stochastic Integral and How Does it Differ from a Regular Integral?
- courtrigrad
- · Replies 3 ·
7 steps to climb in how many ways?
- aisha
- · Replies 8 ·
What are the lowest two frequencies of the sound?
- Yoda13
- · Replies 2 ·
Molar Mass Calculation for Freezing Point Depression
- relskid
- · Replies 5 ·
Kinetic energy of an orbiting object
- decamij
- · Replies 2 ·
What is the Coefficient of Performance (COP) for this refigeration unit?
- natski
- · Replies 2 ·
Resources on center of gravity?
- ArabianBeauty
- · Replies 2 ·
Centre of mass speed and inelastic collision of relativistic particles
- mike217
- · Replies 2 ·
Vector dot products in a right triangle with a+b+c=0
- RadiationX
- · Replies 7 ·
How Does Boiling Water Affect the Computed Specific Heat in Calorimetry?
- sim_shopaholic_csi
- · Replies 2 ·
What is the charge and placement of the third charge for equilibrium?
- leolaw
- · Replies 9 ·
How Does Capacitance Change with Multiple Dielectric Materials in a Capacitor
- xcutexboax
- · Replies 4 ·
Distinguishing projections, reflections and rotations from matrices
- matrix_204
- · Replies 2 ·
How Fast Was the Car Initially Moving?
- runner1738
- · Replies 6 ·
Determining arm length of catapult
- ArrowHeart
- · Replies 4 ·
Can I Simplify This Integral with a Trigonometric Substitution?
- mad
- · Replies 8 ·
Gravitational force and electrical force
- leolaw
- · Replies 14 ·
How can I find the equation for the cell division sequence?
- aisha
- · Replies 11 ·
What is the relationship between dividends and no arbitrage?
- courtrigrad
- · Replies 8 ·
Find the changes in entropy for the water and for the ice
- Soaring Crane
- · Replies 2 ·
Evaluating Indefinite Integral as Power Series: Find Radius of Convergence
- jaidon
- · Replies 3 ·
Why Do Voltage Levels Differ in Series and Parallel Battery Configurations?
- Esnas
- · Replies 6 ·
Minimum Deceleration for Railroad Crossing Accident Avoidance
- runner1738
- · Replies 7 ·
Solving the Tidal Force Problem
- matpo39
- · Replies 2 ·
Model rocket launched at 45.6 m/s with 1.5 m/s² acceleration
- runner1738
- · Replies 10 ·
Who's Correct About f(f_inverse(5))?
- ktpr2
- · Replies 18 ·
How Do Observers in Relative Motion Perceive Time and Position Differently?
- m00nd0g68
- · Replies 8 ·
Type of Expansions and Differential Equations
- courtrigrad
- · Replies 4 ·
Angular momentum and orbital angular momentum problems
- sebasalekhine7
- · Replies 3 ·
Can A or B be finite if A cross B is not the empty set?
- physicsuser
- · Replies 5 ·
Understanding Perturbation Theory for the Harmonic Oscillator
- JamesJames
- · Replies 7 ·
How Is Energy Calculated in a Perfectly Inelastic Collision Between Protons?
- mike217
- · Replies 2 ·
How Can Continuity be Ensured for Functions with Discontinuities at x=2?
- ElectricMile
- · Replies 5 ·
C++ converting base 10 to Roman numerals
- Math Is Hard
- · Replies 60 ·
What is the Electric Field Between Two Charged Plates?
- lobstrain
- · Replies 9 ·
Finding the maximum height of a rocket
- hieule
- · Replies 2 ·
Electric Field and electron speed
- Soaring Crane
- · Replies 11 ·
Equation for velocity of center of mass
- UrbanXrisis
- · Replies 9 ·
Normal force on a tilted road: why isn't N=Mg cos(theta)?
- Xerxes1986
- · Replies 10 ·
How do you determine E field direction in a velocity selector for a proton vs electron?
- josephcollins
- · Replies 2 ·
2 objects 1 up and 1 down thrown
- runner1738
- · Replies 6 ·
Solving for Acceleration and String Forces on Incline with Two Masses
- stunner5000pt
- · Replies 16 ·
How is the Approximation of \( e^r \) Derived in Discrete Compounding?
- courtrigrad
- · Replies 6 ·
Determine the tension of the cord?
- lilei
- · Replies 3 ·
Stone projectile motion problem
- FocusedWolf
- · Replies 2 ·
How to integrate x^4/√((1-x²)³)
- Yegor
- · Replies 17 ·