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

Find d for |f(x) - (1/5)| < .05 if |x-5| < d

  • Soaring Crane
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1

Experimenting with Electrodes in Water: Physics Theory Needed

  • druvinda
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2

Is 200 kN a reasonable force for a 10 kg object in a tension problem?

  • gr3g1
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1

Particle dropped in hole through the earth

  • Barley
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3

Probability that mean will be at least 21000 in 1992

  • bayan
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4

Physics n00b Problem - Power Conversion

  • Seraph
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5

How Long Does It Take a Sports Car to Travel 0.5 Miles from Rest?

  • xxQueenie47xx
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Calculus question- differentiation

  • tracey163
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4

Whats the difference between log and ln?

  • gillgill
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1

Why is q Smaller or Equal to T(S2-S1)?

  • asdf1
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1

How Many Parameters Define O(N) and SO(N) Groups?

  • Norman
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1

How does the size of a hole affect the rate of water drainage from a barrel?

  • LocktnLoaded
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5

Calculating Distance Traveled on Incline with Kinetic Friction

  • LCB
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2

Find the components for F (AC)?

  • sfgradv
  • · Replies 5 ·
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5

What is the Acceleration of a Tennis Ball After Being Served?

  • LCB
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2

Torque on a rectangular loop with attached mass

  • Pepsi24chevy
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1

Calculate Energy of Parallel-Plate Capacitor: 10.4V

  • U154756
  • · Replies 1 ·
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1

Unbalanced force from a 1.2 tonne car accelerating at 1 m/s²

  • Kain
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2

What is the total energy of the point charge?

  • meadow
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3

New equation? y=3tan(2x) shifted down 5 and 60 left?

  • aisha
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1

Two Dimensional Kinematic Question

  • Dooh
  • · Replies 1 ·
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1

Frictional Force and Acceleration

  • LCB
  • · Replies 1 ·
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1

Physics Kinematics of a rock drop

  • jai6638
  • · Replies 10 ·
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10

Can You Determine the Correct Wavelength Measurement in Physics Class?

  • bayan
  • · Replies 1 ·
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1

How do I determine which chemical is in which bottle

  • h_k331
  • · Replies 3 ·
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3

Calculating Time for US Debt to Double: Y=1/r ln(x)

  • sfgradv
  • · Replies 3 ·
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3
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5

Solve Kinematic Equations: Find V0 or T with A,Vf,D

  • B-80
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1

Calculate Frictional Force Driving Up Inclined Hill - 4270kg Car

  • jbowser
  • · Replies 1 ·
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1

Why does (t²)y' + 2ty equal ((t²)y)'?

  • CinderBlockFist
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2

How does e^(2ln(t)) equal t^2?

  • CinderBlockFist
  • · Replies 4 ·
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4

Struggling with the FTOC: Derivative of g(x)

  • Echo 6 Sierra
  • · Replies 5 ·
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5

Does e^{iS} Equal Zero When S Approaches Infinity in Feynman Path Integrals?

  • kakarukeys
  • · Replies 7 ·
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7

The eqn and proof of energy of sinosiodal waves.

  • Wen
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2

How Do Topological Closures Relate in Union Operations?

  • Long2024
  • · Replies 1 ·
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1

Electric Field Energy (dielectrics

  • da_warped_1
  • · Replies 1 ·
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1

Calculating Kinetic Energy Using the Work-Energy Theorem

  • evgeniy
  • · Replies 3 ·
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3

Matrices, I can't seem to cancel out any more elements

  • mr_coffee
  • · Replies 6 ·
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6

In what direction should the pilot travel in this direct flight?

  • physics1720
  • · Replies 4 ·
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4

Force on a point charge due to a rod

  • stunner5000pt
  • · Replies 4 ·
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4

How to Express Period as a Function of Length?

  • DB
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4

What are the bases for U and W in R^4?

  • abcdefg
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1

Having problem showing the vectors point in the same dir. its a 0 Vector?

  • mr_coffee
  • · Replies 23 ·
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23
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3

Solve (3 3/8) to the power of -1

  • Nicholasw
  • · Replies 1 ·
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1

How Do You Calculate the Tension in a Chandelier Cable?

  • ~angel~
  • · Replies 10 ·
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10

Where can I find algebra 2 and geometry practice sheets?

  • njkid
  • · Replies 1 ·
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1
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1

Solve Integral Problem: L.H.S w/ a,b,x0

  • princepolo
  • · Replies 1 ·
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1

Calc III, Determing the coordinates of P

  • mr_coffee
  • · Replies 6 ·
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6

What is the total flight time of a missile to intercept an aircraft?

  • ozzy
  • · Replies 13 ·
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13

Proving dot product commutativity with vector components

  • mr_coffee
  • · Replies 13 ·
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13
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4

Two forces at angle find resultant and vice versa

  • 9danny
  • · Replies 8 ·
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8

How Can We Understand Iterated and Double Limits in Complex Variables?

  • hanson
  • · Replies 4 ·
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4

Solve the system x+y=9, x^2 - y^2 = 36 for x and y

  • aricho
  • · Replies 5 ·
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5

Why Does My Solution to French's Mechanics Problem 6-3 (b) Differ from the Book?

  • Dorothy Weglend
  • · Replies 7 ·
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7
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3

Find Limit of F(x) at x=1: 2x^2, 3, x+

  • bard
  • · Replies 4 ·
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4

Estimate # Water Molecules in 1.5mm Raindrop

  • mh922253
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1

Calculating Time Length of Train and Wall Intersection

  • dnt
  • · Replies 2 ·
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2

Simple Optics: Image Formed By Two 15cm Lenses

  • beethoven'smahomeboy
  • · Replies 1 ·
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1

Finding a Perpendicular Vector in 3D Space

  • SigmaCrisis
  • · Replies 7 ·
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7

Finding mass percentage and density of a sodium chloride solution

  • rochelle_soccergirl
  • · Replies 3 ·
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3

How Many Water Molecules Are in a 1.5 mm Raindrop?

  • mh922253
  • · Replies 2 ·
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2

Need to derive the distance formula from the acceleration due to gravity

  • Icedfire01
  • · Replies 2 ·
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2

Binomial probability of 15-20 apprenticeships out of 110 students

  • bayan
  • · Replies 3 ·
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3

Body with constant acceleration covers 1m in 3s and 1m in 5s

  • GregA
  • · Replies 7 ·
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7

How many generations must a person go back to have at least 1000 ancestors?

  • universal-confusion
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5

Is C([0,1]) complete with the L^1 norm?

  • Oxymoron
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3
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1

Tension on string pulling up water

  • sfgradv
  • · Replies 7 ·
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7

Finding Tangent Line of f(x) at (4,(2/5))

  • Victor Frankenstein
  • · Replies 2 ·
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2

Can I Find a Video Explanation of the Right-Hand Method for Cross-Products?

  • M_LeComte
  • · Replies 5 ·
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5

Stuck on a 1500hp Pump Problem: Solve for Velocity & Efficiency

  • crslax9
  • · Replies 6 ·
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6

Bad Physics Teaching: Solve Grade 11 Physics Question

  • SRForum
  • · Replies 2 ·
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2

How Long Does It Take for a Dropped Camera to Hit the Ground?

  • ms. confused
  • · Replies 4 ·
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4

Answer Time Speed Problems: Calculate Distance from Earthquake

  • MrMiyagi901
  • · Replies 3 ·
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3

Help with historical significance of Reconstruction topics for ID test

  • Imparcticle
  • · Replies 3 ·
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3

Calculating Kinetic Energy of Particle B Using Electrical Potential

  • srhly
  • · Replies 1 ·
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1

Derivative of Piece-Wise Function

  • Jeremy
  • · Replies 3 ·
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3

Calculating Acceleration for a Sports Car Stopping at 50m from 90 km/h Speed

  • reliquator
  • · Replies 11 ·
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11

Question involving beats and sound waves

  • insertnamehere
  • · Replies 3 ·
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3

How Far Will You Go Before Stopping? Can You Avoid Hitting the Dog?

  • ms. confused
  • · Replies 2 ·
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2

Checking Distance Travelled by Car: Is 3.2 km Right?

  • brad sue
  • · Replies 1 ·
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1

Calculating Speed of m3 Using Energy Concepts in a Frictionless System

  • jman1211
  • · Replies 5 ·
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5

Kinematics problems: plane landing, train braking, and rock thrown upward

  • Zandorian
  • · Replies 17 ·
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17

How to Approach Projectile Motion on an Inclined Surface?

  • Pepsi24chevy
  • · Replies 1 ·
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1

Converting Liters to Cubic Inches Using Dimensional Analysis

  • courtrigrad
  • · Replies 2 ·
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2

What equation am I supposed to use for potential difference?

  • destinee20
  • · Replies 3 ·
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3

What is the dielectric constant of the material between the plates?

  • jpjp
  • · Replies 3 ·
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3

Solving Airplane Pilot Problem - Find Angle & Speed Over Ground

  • clair_a_net
  • · Replies 1 ·
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1

Limit lim(x->pi/4) tan(2x) =tan(pi/2)

  • bard
  • · Replies 2 ·
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2

Heat Transfer Problem in Cylindrical

  • danai_pa
  • · Replies 4 ·
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4

Proving the Primality of an Integer with a Specific Divisibility Property

  • Cableguy008
  • · Replies 5 ·
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5

Calculating Tangent for Accelerated Motion: Rise/Run?

  • Turvey
  • · Replies 1 ·
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1

Finding Tangent Line to f(x) at (4, (2/5))

  • Victor Frankenstein
  • · Replies 2 ·
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2

Calculating Flee's Acceleration After Take-Off

  • N2
  • · Replies 1 ·
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1

What is the car's vertical velocity

  • BriannaUND
  • · Replies 1 ·
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1

How Does Relative Motion Affect Raindrop Trajectories on a Moving Car?

  • AdnamaLeigh
  • · Replies 3 ·
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3