Introductory Physics Homework Help Forum

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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Difficulty of calculus-based physics up to waves

  • NanoTech
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Potential difference and ohms law

  • nautica
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Setting up three kinematics problems with balls, objects and particles

  • Pepsi24chevy
  • · Replies 8 ·
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What Happens to the Force Between Two Touching Charged Spheres When Separated?

  • TheMadCapBeta
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What Is the Correct Electric Field Calculation for a Point Charge?

  • nautica
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Parallel Resistance for Two Identical Headlights with 6V Battery

  • nautica
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Bungee jump from a bridge, how to find h

  • jperez94
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Finding a and b to make a piecewise function continuous

  • ACLerok
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What are the Moments and Forces in These Statics Problems?

  • formulajoe
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Time to fill a pool with a 5/8 inch diameter hose

  • mindhater
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Solving Easy Work Problem: 10N x 3.5m and 805 N x 22m

  • diciccod
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Waves Investigation [Using water]

  • Acidvoodoo
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How to interpret this projectile motion problem

  • mcintyre_ie
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Rotational kinematics and grinding wheel

  • ACLerok
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2
  • Poll Poll

Why do 1g and 2.5g cars stick together after collision?

  • nodnarb
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Find Initial Velocity of 5.5g Bullet Impacting 22.6g Block

  • melal
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Differentiating electromagnetic field

  • jlmac2001
  • · Replies 4 ·
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Blood pressure difference in constricted artery and oil flow rate

  • moonlit
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6
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Elastic head-on collision physics

  • Eminem04
  • · Replies 4 ·
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Electric current, capacitance, and field problems homework

  • nautica
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Speed and direction of bubble layer center of mass

  • DivGradCurl
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Non-free-fall Acceleration Problem

  • holly
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How to Integrate by Parts Twice for e^3x cos(x)?

  • Klion
  • · Replies 4 ·
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Centroid of a shape with a half circle hole

  • cathliccat
  • · Replies 3 ·
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Integral of Natural Log Part II

  • wubie
  • · Replies 4 ·
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Help with solving 6x - x² = x and factoring 2x⁴ - 32

  • physicszman
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Hyperfine and fine structure ENERGIES

  • student1938
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Average force from a shot put throw

  • Unknown
  • · Replies 2 ·
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Integrating Natural Logarithmic Functions

  • wubie
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Ball rolling down ramp off a table

  • KingNothing
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Solving for Initial Speed of a 5.5g Bullet Impacting Wood Block

  • CoolBlueR
  • · Replies 2 ·
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What constant force does the punter exert on the ball?

  • pinkbubbles04
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Dropped Rock Kinetic Energy Problem

  • NIT14
  • · Replies 5 ·
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Searching for female physicists

  • kl2d1726
  • · Replies 5 ·
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Car moving in circle with acceleration at 46 degrees to velocity

  • Xamfy19
  • · Replies 4 ·
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4

How to draw force diagrams for a physics test

  • dgessler
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Two-section tube flow rate using Poiseuille's law

  • rddimtbo
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7

Why alkanes are said to be saturated

  • recon
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Problem with composite functions

  • krusty the clown
  • · Replies 5 ·
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Rotating coordinates on a plane without graphing

  • Dagenais
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Need Help? Solve 2 Physics Problems

  • spudnick
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Equilvalent Resistance Problems

  • mustang
  • · Replies 4 ·
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Calculating Electric Field in a Line of Charge Problem

  • Andrew.
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Finding <x> for a superposition of harmonic oscillator eigenstates

  • spdf13
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What is the maximum altitude reached?

  • Themachine8
  • · Replies 3 ·
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Calculate the normal force and the tension in the string

  • hadoken22
  • · Replies 3 ·
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Irrotational and divergenceless?

  • jlmac2001
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Two resistors in series and parallel, find resistance of A

  • mustang
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How Does Electric Field Strength Change with Distance from a Point Charge?

  • pringless
  • · Replies 2 ·
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How Is the Potential Energy of a Skydiver-Earth System Reducing?

  • Crashdowngurl
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How Does Physics Enhance Car Performance and Safety Features?

  • Kensai
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Calculating Force to Pull Copper Ball Upward

  • anneseanandy
  • · Replies 3 ·
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Newtonian mechanics on a particle

  • jlmac2001
  • · Replies 2 ·
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SecondOrder Nonhomogenous Linear Differential Equations

  • wubie
  • · Replies 1 ·
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How can I determine the speed of a bullet fired into a block of wood?

  • Crashdowngurl
  • · Replies 3 ·
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Laplacian of sqrt(x² - y²) and ln(r²)

  • jlmac2001
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Entropy rate in cylindrical rod with thermal reservoirs

  • Skyblitz
  • · Replies 2 ·
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Powering 4 Blue LED's in Parallel: Dropping Voltage to 3.5V

  • Cummings
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EMF induced in rectangular loop moving past infinite current wire

  • infinitelylong
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What is the Formula for Converting Rotational Speed to Linear Speed?

  • celect
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Finding the y-intercept of y=3x^2-16x-12

  • Echo 6 Sierra
  • · Replies 6 ·
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What are vectors and how are they used in physics?

  • Maxwell
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Photoelectric Effect: Max Current, Cutoff Potential, Kinetic Energy

  • marshall4
  • · Replies 2 ·
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Finding acceleration of a 12.5 kg crate on a 22-degree ramp

  • paigegail
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Force of Object on Inclined Place

  • paigegail
  • · Replies 2 ·
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Series and parallel resistor circuits with 3 problems

  • mustang
  • · Replies 2 ·
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Finding unknown resistance and current in series and parallel circuits

  • mustang
  • · Replies 2 ·
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Simple Quantum Mechanics Problem

  • student1938
  • · Replies 13 ·
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What is Young's Modulus and How Does it Differ Between Materials?

  • Magg$
  • · Replies 20 ·
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Atmospheric pressure, buoyancy, and fluid dynamics problems

  • Krivanka
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How Fast Does a Girl Enter the Water When Diving from a 15m Platform?

  • meawinner
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At what time will the particle be traveling at 32 degrees

  • Xamfy19
  • · Replies 7 ·
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Why does cos theta = dot product divided by magnitudes?

  • formulajoe
  • · Replies 3 ·
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Calculating Receiver's Path and Speed to Catch Thrown Ball

  • neochris
  • · Replies 3 ·
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3

Calculating Initial Velocity for a Basketball Player's Leap

  • pepperoni
  • · Replies 4 ·
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How did they calculate the speed of light?

  • crystal cascade
  • · Replies 4 ·
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What does magnitude of the force mean?

  • HandcuffedKitty
  • · Replies 3 ·
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Electromagnetic induction and transformer formula help

  • tzvu
  • · Replies 5 ·
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Clueless about electric charges questions;

  • Matt Jacques
  • · Replies 2 ·
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How Do You Calculate Acceleration in Different Scenarios?

  • adversary
  • · Replies 2 ·
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Theres something about gravitational

  • ACLerok
  • · Replies 2 ·
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How Do You Calculate Electric Fields of Spherical Charges Using Gauss's Law?

  • eku_girl83
  • · Replies 3 ·
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Circular motion problem with 0.4 kg mass

  • DR33
  • · Replies 2 ·
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Calculating Work and Kinetic Energy of Jet-Powered Train

  • DarkAnt
  • · Replies 2 ·
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Calculating Tension of Steel Wire at Different Temperatures

  • HWManiac
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Why Is Charge Measured in Nanofarads Instead of Coulombs?

  • AngelofMusic
  • · Replies 2 ·
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Finding the unknown metal in a calorimeter with copper and water

  • PrudensOptimus
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