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

Cannon recoil velocity with angled projectile

  • Xamfy19
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How Strong is the Electric Field Between Two Charged Plates?

  • tandoorichicken
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2

Pendulum with Water-Filled Sphere: Does it Change the Period?

  • Physicsisfun2005
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Electric field problems literally

  • robert135
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Smiple circuit with just one resistor

  • adamg
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Solving Problem 14-54: Force on Box - Rope Tension

  • jjiimmyy101
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Magnetic Force: Work or No Work?

  • broegger
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  • Poll Poll

Does this personal essay show my strengths and weaknesses?

  • cvhpg45
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Proving simple harmonic motion for a floating weighted cylinder

  • hbanana
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Which side of the triangle gives it maximu area?

  • MathLete
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6

Show that the electric field outside the shell is everywhere

  • tandoorichicken
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What is the field outside the shell?

  • tandoorichicken
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Carnot cycle, heat and monatomic ideal gas

  • frznfire219
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3

Finding tangent points where a box's sides touch an ellipse

  • ACLerok
  • · Replies 9 ·
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9

Finding spring constant, frequency, and wavelengths

  • mustang
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2

Proving a heat engine more efficient than Carnot violates the second law

  • jlmac2001
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Intuitive explanation of gravity outside a sphere?

  • jacobfreeze
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4

Solving Pressure with Gases in a Diving Bell

  • Antepolleo
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2

Hat is the value of the second capacitor?

  • liljediboi
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4

Electric potential of insulating rod

  • pattiecake
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3

Question concerning rotation etc

  • JamesL
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3

Measuring the Angle of Refraction in a Triangular Prism Lab

  • UrbanXrisis
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2

Understanding the Hall Effect: Comparing Germanium and Copper Magnetometers

  • Casey_Switzer
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2

Uniform Magnetic Field Causes Induced Current in Loops

  • broegger
  • · Replies 6 ·
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6

Electromagnetic induction and EMF in wire

  • adamg
  • · Replies 7 ·
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7

How Deep is the Well When Humming Establishes Standing Waves?

  • hbng02
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2

How to find water velocity in a rocket from ejection data

  • Db75
  • · Replies 3 ·
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3

Mass of H Atom: 1.673x10^-27 kg

  • jazzchan
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A bit of direction is needed, if possible

  • Calliah
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3

Why are roads banked on curves and ramps?

  • i speak french
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Finding constants k and n in athletic record equation t = kd^n

  • JPR
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2
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Kinetic friction on a moving object

  • KingNothing
  • · Replies 2 ·
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Materials for a homemade drum and how tension affects sound

  • BrainFreeze
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2

Minimize tent cost with spherical cap of 150 cu ft

  • Muon12
  • · Replies 4 ·
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4

Calculating Mass Using Newton's Laws

  • Beretta
  • · Replies 3 ·
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3

Gravitation/circular motion problem

  • Moebius
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5
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2

How Do You Calculate Eigenvalues for a 2x2 Symmetric Matrix?

  • ilikephysics
  • · Replies 3 ·
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3

A man, a boat, and the tractrix formed

  • Prodigy Girl
  • · Replies 3 ·
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3

Find the final speed of the heavier particle

  • Aerospace
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6
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How Far Does a Magnetic Field Extend?

  • Xion
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2

Derive Parallel-Plate Capacitance w/ 2 Dielectrics

  • broegger
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2

Two particles elastic glancing collision, m deflected downward

  • Mac13
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12
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11

Finding angular momentum from mv and radius in a magnetic field

  • eku_girl83
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Gas isobaric conditions problem

  • moonlit
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5
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Drawing and naming molecular shapes: CO3^-2 and SF2

  • decibel
  • · Replies 8 ·
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8

Data analysis for Advancing Physics AS level coursework

  • vezzer
  • · Replies 30 ·
2
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Measuring Depth of Water in a Tank: Course Help

  • Jay_102
  • · Replies 2 ·
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2

Rearranging Formula with t as Subject - Grace

  • physicsgirl_nz
  • · Replies 4 ·
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4
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Inclined Planes and Acceleration

  • itinerantphysicist
  • · Replies 8 ·
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8

Find Work done by a force field

  • wakingrufus
  • · Replies 5 ·
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5

Physics teacher is bad, can I teach myself?

  • SparkimusPrime
  • · Replies 7 ·
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Solve Collision Problem: 1300kg Car A vs 1200kg Car B

  • Bling
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Electric Fields charge problem

  • oooride
  • · Replies 6 ·
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Force between two alpha particles from decaying Be-8 nucleus

  • radmonovic
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A proton colliding with a stationary carbon nucleus

  • HandcuffedKitty
  • · Replies 2 ·
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How Do You Calculate the Internal Resistance and EMF of a Solar Cell?

  • incubusguy88
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2

Minimum dart speed for ballistic pendulum to complete circular loop

  • freshpulp
  • · Replies 2 ·
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What is the skier's launch speed?

  • hyen84
  • · Replies 3 ·
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3

Calculating Free Electron Density in a Metal Wire

  • NINHARDCOREFAN
  • · Replies 9 ·
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9

Why Is My Calculation of Work for Sliding a Crate Up a Ramp Incorrect?

  • Xamfy19
  • · Replies 2 ·
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2

Calculating Heat of Vaporization for Solid CO2 in Water

  • nsw
  • · Replies 12 ·
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12

What is the total electrical potential energy

  • Moose352
  • · Replies 2 ·
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2

Converting a galvanometer to an ammeter with shunt resistor

  • eku_girl83
  • · Replies 2 ·
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2

Deriving the Maxwell Stress Tensor for a Spherical Charge Distribution

  • mark9696
  • · Replies 2 ·
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2

True or False on kinetic energy

  • PhysicsPhun
  • · Replies 6 ·
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6

Still no confident with these answers.

  • nautica
  • · Replies 6 ·
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6

Just one harmonic motion problem

  • mustang
  • · Replies 7 ·
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7

Ping-pong ball in zero-g water blob and train window breakage

  • holly
  • · Replies 3 ·
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3

Differentation Problem (involves product rule)

  • Cod
  • · Replies 3 ·
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3

Solving the Integral: $\int_{0}^{\ln 2} e^{-2x} \,dx$

  • tandoorichicken
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4

Solving Calc AP Problem 1: Total Distance 0-2

  • tandoorichicken
  • · Replies 2 ·
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2

Towing a 25.0 kg suitcase at constant speed with handle at an angle

  • PrudensOptimus
  • · Replies 4 ·
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4

How Well Do You Understand Inductive Circuits and Magnetic Fields?

  • nautica
  • · Replies 4 ·
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4

Project ideas for statics and dynamics

  • ermines
  • · Replies 2 ·
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2

Finding voltage and current across five resistors in a diamond circuit

  • i_hate_physics
  • · Replies 3 ·
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3

Speed of an object thrown down a hole to the center of the earth

  • qpt
  • · Replies 2 ·
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2

Calculate Center of Mass for 1.05cm Baseball Bat with Linear Density Formula

  • HandcuffedKitty
  • · Replies 2 ·
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2
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9

How Do You Convert Momentum from MeV/c to kg-m/s?

  • gnome
  • · Replies 2 ·
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2

Finding the mass of the earth's atmosphere

  • deltabourne
  • · Replies 2 ·
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2
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