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.

Threads

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
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2

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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2

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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3

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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2

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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4

Diver's initial velocity from 3 m board given final speed and angle

  • Unknowned
  • · Replies 5 ·
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5

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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2

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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2

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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2

Good links for APA citation and format

  • Sting
  • · Replies 6 ·
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6

Understanding Negative Exponents in College Algebra

  • Cod
  • · Replies 8 ·
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8

Tension of two pieces of string

  • whatagun
  • · Replies 7 ·
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7

Uniersity of Texas Physics Curriculum

  • Echo 6 Sierra
  • · Replies 3 ·
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3

What aspect of heat should I research for a 10 minute presentation?

  • billbo
  • · Replies 4 ·
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4

X-ray tube used for cancer therapy

  • jpnnngtn
  • · Replies 9 ·
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9

Making a metal permanently positive and permanently negative

  • Hypothesis
  • · Replies 1 ·
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1

Current from a 100W lamp in 110V and 220V circuits

  • PiRsq
  • · Replies 9 ·
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9

What went wrong with finding the resultant?

  • Sting
  • · Replies 10 ·
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10

Job for a mathematician or a physicist

  • MathematicalPhysicist
  • · Replies 6 ·
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6

What Is the Maximum Speed to Stop Safely Within 40 Meters?

  • NMiller5a
  • · Replies 2 ·
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2

How can I find the inverse of this matrix using any method?

  • tony blair
  • · Replies 3 ·
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3
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7

What angle does the string make with the vertical?

  • PerpetuallyFrustrate
  • · Replies 2 ·
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2