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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2

Solving an Inverse Problem with f(x)=5+2x+5e^x

  • sonya
  • · Replies 4 ·
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4

Calculating Average Acceleration on a Ferris Wheel

  • ffrpg
  • · Replies 2 ·
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2

Calculating Centripetal Acceleration of Stone

  • ffrpg
  • · Replies 2 ·
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Prove that x+1/x ≥ 2 for all x>0

  • mercury
  • · Replies 2 ·
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2

Will Car A Collide with Car B After Deceleration?

  • mcintyre_ie
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Calculating Overtaking Time for Two Cars Accelerating Uniformly

  • LadyLexa
  • · Replies 4 ·
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4

Collision of Two Cars with Constant Velocity and Deceleration

  • mcintyre_ie
  • · Replies 3 ·
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3

Why Does a Car Traveling at Constant Velocity Still Do Work?

  • Cpt. Bob
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2

How do you calculate tension forces using acceleration and free body diagrams?

  • barbieprincess87
  • · Replies 2 ·
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2

How Do You Solve a Two Spin-1/2 System with Coupled Hamiltonians?

  • kakarukeys
  • · Replies 6 ·
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6

How Do You Find the Inverse of a Function in Calculus?

  • sonya
  • · Replies 5 ·
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5

Discover Free Fall Equations & Solve for Time and Height | g = 9.8 m/s

  • pringless
  • · Replies 2 ·
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2

Distance of closest approach for two objects on x-axis

  • pringless
  • · Replies 3 ·
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3

What Are Common Errors When Solving Complex Systems of Equations?

  • zeronem
  • · Replies 4 ·
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4

Calculating Acceleration with Spark Timers for Dynamics Cart Experiment

  • captain_planet
  • · Replies 5 ·
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5

Speed of clock hand tips with the same length

  • Aerospace
  • · Replies 6 ·
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6

Two bodies are falling with negligible air resistance

  • Aerospace
  • · Replies 2 ·
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2

What is the connection between velocity and maximum height?

  • NINHARDCOREFAN
  • · Replies 9 ·
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9

Finding initial velocity for projectile hitting target 1250m away

  • Aerospace
  • · Replies 2 ·
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2

Why Does an Atwood's Machine Behave as It Does?

  • Leilei
  • · Replies 2 ·
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2

Solving Acceleration Problem for Jaguar S-Type R

  • tucky
  • · Replies 2 ·
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2

Model rocket - free fall acceleration again

  • missrikku
  • · Replies 3 ·
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3

Intro to physics vector problem

  • lizette
  • · Replies 2 ·
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Stone thrown down 1s after dropped stone from 43.9m bridge

  • missrikku
  • · Replies 2 ·
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2

Why Are Black Holes Considered Bottomless Pits in Space-Time?

  • photon
  • · Replies 3 ·
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3

Paraxial magnification for a spherical interface between two media

  • jlmac2001
  • · Replies 1 ·
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1

Resistance between opposite faces of a disk with variable cross-section

  • discoverer02
  • · Replies 5 ·
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5

Geometric Sequences and Logarithms

  • Astronomer107
  • · Replies 3 ·
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3

Converting velocity/time graph to acceleration/time

  • NINHARDCOREFAN
  • · Replies 2 ·
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Vector Proofs using vector components

  • lizette
  • · Replies 2 ·
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2

Free fall of ball and acceleration

  • missrikku
  • · Replies 3 ·
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3

God how do you prove geometry theorems?

  • PiRsq
  • · Replies 6 ·
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6

Solving Arithmetic and Series Problems in IB Math Methods

  • Astronomer107
  • · Replies 4 ·
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4

Precession of the perihelion of Mecury

  • tdotson
  • · Replies 2 ·
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2

A two trains problem (distance and speed)

  • missrikku
  • · Replies 2 ·
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2

Pulley system with two masses and tension calculation

  • Leilei
  • · Replies 6 ·
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6

What's the volume of an electron?

  • Element
  • · Replies 3 ·
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3

Finding a in circular motion problem

  • infraray
  • · Replies 4 ·
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4

Ok does any1 know any other solver websites?

  • vadlamudit
  • · Replies 5 ·
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5

Finding the Least Speed for Rotating Eggs in a Basket

  • alchemist
  • · Replies 2 ·
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2

Proving a×b is not divisible by prime p when a,b<p

  • Hoovilation
  • · Replies 3 ·
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Conservation of energy between two charged sheres

  • Will
  • · Replies 2 ·
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2

Electric charge and Electric Field

  • rdoug 33
  • · Replies 2 ·
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2

How to Calculate Speed and Time for Pions and Spacecraft?

  • jlmac2001
  • · Replies 2 ·
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2

How Does the Periodic Table Influence the Atomic Structure of Metals?

  • garytse86
  • · Replies 2 ·
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2

Find the angle that the vector R

  • NINHARDCOREFAN
  • · Replies 6 ·
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6

When a source gives out voltage

  • PiRsq
  • · Replies 11 ·
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11

Projectile range from elevated height vs range formula

  • kashmirekat
  • · Replies 5 ·
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5

Solve for Average Velocity during 2nd Half of Trip

  • ffrpg
  • · Replies 2 ·
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2

Distance traveled by muons before decay at 0.96c

  • jlmac2001
  • · Replies 2 ·
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How do I balance oxidation-reduction equations?

  • gigi9
  • · Replies 3 ·
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3

Tungsten wires of all electric light bulbs

  • discoverer02
  • · Replies 2 ·
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2
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Diver's initial velocity from 3 m board given final speed and angle

  • Unknowned
  • · Replies 5 ·
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Solving Atwood's Machine Problem

  • Leilei
  • · Replies 5 ·
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5

A wire with a resistance R is lengthened to 1.25

  • discoverer02
  • · Replies 4 ·
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4

Need astrophysics research assignment topic ideas

  • Astrophysics
  • · Replies 13 ·
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13

How do I solve this challenging AP Physics mechanics problem?

  • beeftrax
  • · Replies 2 ·
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2

What does relative abundance tell you?

  • sinnie16
  • · Replies 2 ·
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2

Get Your 7 Year Old Interested In Science

  • Sourire
  • · Replies 2 ·
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2

Solve Physics Problem: Target 120 m Away, Speed 250m/s

  • kashmirekat
  • · Replies 2 ·
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2
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2
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Escape velocity and acceleration from gravity

  • Cpt. Bob
  • · Replies 4 ·
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4

What angles will allow the football to clear the crossbar?

  • terryaki
  • · Replies 2 ·
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2

Hi, I'm in AP Calculus and I feel really stupid

  • Daniel
  • · Replies 14 ·
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14

Time change and degrees longitude

  • missrikku
  • · Replies 9 ·
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9

Solving Displacement Without Time

  • cheer_chic
  • · Replies 4 ·
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4

Looking for a Picture with Einstein and 29 Scientists?

  • vadlamudit
  • · Replies 2 ·
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2

Find Min Distance for Train to Avoid Collision

  • ffrpg
  • · Replies 5 ·
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5

What was the elapsed time of the flight stone?

  • ffrpg
  • · Replies 5 ·
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5

Finding area of gold leaf and length of gold fiber from volume

  • missrikku
  • · Replies 3 ·
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3

Fundamentals of Physics Extended, problem 72

  • Hyperreality
  • · Replies 2 ·
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2

Finding disk radius for 1/4 of flux from a point charge

  • Will
  • · Replies 6 ·
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6

Calculating Average Acceleration of Styrofoam Ball

  • ffrpg
  • · Replies 2 ·
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2

Can I get a jump start in solving this

  • dr_pooool
  • · Replies 3 ·
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3

Graphs of a vs. t, v vs. t, and d vs. t ?

  • IamHenry
  • · Replies 8 ·
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8

Choose the best scale for the axes for x = 10, 20, and 30

  • dr_pooool
  • · Replies 3 ·
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3

Why do nuclear power plants raise the temperature of sea water?

  • 22-16
  • · Replies 5 ·
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5

Centripetal Force/ conservation of momentum/ etc

  • FestiveF
  • · Replies 5 ·
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5

What is the displacement of the particle

  • ffrpg
  • · Replies 2 ·
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2

Where is the point of application of the Acsimet force ?

  • pkh
  • · Replies 9 ·
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9

A 15 LB weight is dropped vertically 1 ft

  • Nornh
  • · Replies 4 ·
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4

A weight of 15 lbs is suspended by a single rope

  • Nornh
  • · Replies 2 ·
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2

Understanding Newton's Laws: Solving Physics Problems with Ease

  • celtchic
  • · Replies 3 ·
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3

What is the best thing that a young scientist can do?

  • Simfish
  • · Replies 14 ·
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14

Should AP Physics questions go under K-12 or college level?

  • Matt
  • · Replies 2 ·
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2

Parameterization of Arc Length Function

  • discoverer02
  • · Replies 8 ·
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8

How Does Compression Affect the Kinetic Energy of a Bowling Ball?

  • Cummings
  • · Replies 3 ·
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3

Mousetrap car material suggestions

  • Hyperreality
  • · Replies 4 ·
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4

How much calculus is in 1st semester physics?

  • Nitrus
  • · Replies 4 ·
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4

Deriving binary star orbital period using Kepler's third law

  • mikky_t
  • · Replies 2 ·
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2

What Steps Are Missing in My 4x4 Matrix Inversion Process?

  • tony blair
  • · Replies 2 ·
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Is the Scientific Process really used by scientists?

  • split
  • · Replies 2 ·
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2

Why does internal resistance increase as a dry cell battery is used?

  • Canuck156
  • · Replies 5 ·
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5

Electrical Field of a Parallel Plate Capacitor

  • meister
  • · Replies 3 ·
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3

Proving the Gamma Function: Using Substitution and Integral Calculus

  • iceman
  • · Replies 2 ·
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Good links for APA citation and format

  • Sting
  • · Replies 6 ·
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Understanding Negative Exponents in College Algebra

  • Cod
  • · Replies 8 ·
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