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

Can Kinetic Energy be Substituted for Heat in Latent Heat Calculations?

  • mateomy
  • · Replies 2 ·
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2

Solving for k, we get k = 2mgd(sinθ)/x2.

  • flyingpig
  • · Replies 4 ·
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4

Kinematic Equations, solving a quadratic gives two solutions?

  • Cones
  • · Replies 5 ·
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5

2-Capacitor, 2-Resistor Parallel RC Circuit with Switch

  • cep
  • · Replies 2 ·
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2
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2

Finding the magnitude of a magnetic field from a square loop

  • Patdon10
  • · Replies 3 ·
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3

Solving for magnetic field from a solonoid

  • Patdon10
  • · Replies 1 ·
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1

What is the E-field through the rod?

  • aximwolf
  • · Replies 2 ·
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2

Find the mass dropped onto the spring

  • flyingpig
  • · Replies 35 ·
2
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35

What is the difference between electric and gravitational potential?

  • Lakshmi N
  • · Replies 4 ·
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4

Which Interference Maxima Are Missing in the Slit Experiment?

  • Punkyc7
  • · Replies 11 ·
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11

How Do You Calculate Rollercoaster Speeds at Different Points?

  • Damie904
  • · Replies 2 ·
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2

How Does Momentum Conservation Affect Sled Speed When Susan Jumps On and Off?

  • gkangelexa
  • · Replies 3 ·
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3

Amusement park ride normal force and orbital mechanics

  • rain_ex
  • · Replies 7 ·
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7

What Focal Length is Needed to Project a 35mm Slide onto a Large Screen?

  • scottatkins
  • · Replies 1 ·
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1

Best location for a light bulb filament using a concave mirror?

  • reganw
  • · Replies 3 ·
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3

Electric charges, wrong answer D: ?

  • Eats Dirt
  • · Replies 1 ·
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1

How Do You Solve a Rolling Sphere Attached to a Spring Problem?

  • Broccoli21
  • · Replies 5 ·
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5

Finding acceleration using FORCE equations

  • helpme2011
  • · Replies 5 ·
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5

Every day examples of Newton's 3rd Law?

  • زهره الربيع
  • · Replies 19 ·
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19

A weight on a beam held up by two columns - force problem

  • bpollard
  • · Replies 10 ·
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10

Help with circuit problem

  • bpollard
  • · Replies 2 ·
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2

Uncertainty propagation for tank concentration calculations

  • mroldboy
  • · Replies 1 ·
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1

How Does Phase Difference Affect Wave Interference?

  • geoffreythelm
  • · Replies 3 ·
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3

What Is the Notation \text{OH}(X^2\pi - A^2\Sigma^+) Used For in Chemistry?

  • Saladsamurai
  • · Replies 2 ·
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2

CO2 expanding from 14.7 MPa to 0.1 MPa: why does gas law predict heating?

  • Keyzeroff
  • · Replies 6 ·
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6

What is the Mass of a Box in a Car's Trunk Based on Rear Shock Compression?

  • flyingpig
  • · Replies 2 ·
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2
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3

Spring question, theory and a simple application.

  • flyingpig
  • · Replies 11 ·
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11

Unit Joule is the unit of work and of kynetic energy

  • physicquest
  • · Replies 16 ·
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16
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1

What does unstretched/natural length mean?

  • flyingpig
  • · Replies 2 ·
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2

Electric potential from a dipole at different angles

  • IHave
  • · Replies 1 ·
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1

Scientific Thinking Graphing -Determining the Mathematical Expression

  • davyvfr
  • · Replies 1 ·
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1

Solving Spring Questions: 4.6 cm and 6.7 cm

  • Hypercubes
  • · Replies 4 ·
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4

What Force Prevents a Skater from Rolling Down an Incline?

  • cwong24
  • · Replies 7 ·
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7

Finding net force and direction on a charged object from three forces

  • insanitey1
  • · Replies 2 ·
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2

Maximum Mass for Spring-Induced Jump

  • tmiddlet
  • · Replies 2 ·
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2

How much will a ray be deviated ?

  • teyber
  • · Replies 1 ·
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1

How to draw a circuit from a word problem.

  • NeomiXD
  • · Replies 3 ·
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3

Questions on Rotational Kinematics/Dynamics

  • fterh
  • · Replies 43 ·
2
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43

Energy stored when a dielectric is inserted into a charged capacitor

  • pc2-brazil
  • · Replies 3 ·
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3

Half life of a nuclear decay via simulation

  • Kynaston
  • · Replies 6 ·
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6

Center of gravity and Newton's 3 Law of Motion.

  • NeomiXD
  • · Replies 3 ·
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3

How Does Friction Affect Acceleration in High-Performance Race Cars?

  • jehan4141
  • · Replies 5 ·
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5

Unit Conversion: G 6.67x10^-11 m^3*s^-2*kg^-1 to cm^3*s^2*g^-1

  • Hank_Rearden
  • · Replies 1 ·
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1

Understanding Beam Deflection in Double Cantilever Beams

  • Tammy....
  • · Replies 5 ·
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5

How Do Antenna Positions Affect Radio Wave Interference?

  • Punkyc7
  • · Replies 1 ·
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1

Temperature at a junction between two rods?

  • scarlson1193
  • · Replies 1 ·
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1

Finding the magnitude of a particle from a graph?

  • themadcow45
  • · Replies 12 ·
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12

Pinhole camera question with only two known variables?

  • ldesai149
  • · Replies 3 ·
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3

How Is Average Induced Voltage Calculated in a Rotated Coil?

  • dumbperson
  • · Replies 3 ·
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3

Velocity Calculation Contradiction

  • MoeAlharbi
  • · Replies 2 ·
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2

Error propagation in calculations

  • jakerue
  • · Replies 4 ·
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4

Distance Between Lenses for a Magnification of 10

  • clintyip
  • · Replies 1 ·
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1

Equipotential surfaces; finding the radius

  • IHave
  • · Replies 1 ·
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1

Finding the unknown weight in a moment problem

  • seiei
  • · Replies 8 ·
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8

Does r_{12} mean distance from 1 to 2 or from 2 to 1?

  • superg33k
  • · Replies 2 ·
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2

Find the kinetic friction coefficient

  • beborche
  • · Replies 4 ·
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4

Finding wind force on boat with three forces and changing velocity

  • jehan4141
  • · Replies 9 ·
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9

Circular Motion and friction problem.

  • khuong1994
  • · Replies 1 ·
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1

Derivation of the moment of inertia eqn for a thin spherical shell

  • cubejunkies
  • · Replies 4 ·
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4

Cyclotron: Speed of Particle After 2nd Gap Crossing

  • blueyellow
  • · Replies 1 ·
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1

Find max. displacement of a spring

  • beborche
  • · Replies 12 ·
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12

Calculating the Magnetic Field due to a Bar Magnet

  • anonymity
  • · Replies 4 ·
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4

How Do You Calculate the Structure Constant in Gell-Mann Matrices?

  • Lapidus
  • · Replies 3 ·
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3

Spring acting on an object (dynamics)

  • Femme_physics
  • · Replies 63 ·
3
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63

Magnetic Field Strength and Webers

  • ja_tech
  • · Replies 1 ·
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1

Isotope abundance with two isotopes: where's my error?

  • FeDeX_LaTeX
  • · Replies 9 ·
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9

Calculating Temperature Needed for Hot Air Balloon Lift

  • scarlson1193
  • · Replies 1 ·
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1

Double Slit Experiment without the small angle approximation

  • Punkyc7
  • · Replies 9 ·
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9

Calculate the Currents in a given circuit

  • Vazer
  • · Replies 18 ·
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18

Solving Combined circuit question

  • NeomiXD
  • · Replies 3 ·
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3

How do I prove That Toricelli's equation, given here is correct?

  • Aliskahir
  • · Replies 9 ·
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9

Force and torque on a rectangular coil in a magnetic field

  • yjk91
  • · Replies 5 ·
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5

Prove this Total Voltage at Resonance

  • fromthepast
  • · Replies 21 ·
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21

How to convert the energy in Joules to mass in a metric done

  • bpollard
  • · Replies 4 ·
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4

Vector Sum (Angle Theta and Magnitude)

  • frozonecom
  • · Replies 3 ·
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3

Where did i go wrong in fudingin the temperature of the gold cube?

  • yjk91
  • · Replies 3 ·
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3

Voltages and Turns in a Transformer

  • fromthepast
  • · Replies 3 ·
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3

Grindstone and kinetic friction problem

  • armolinasf
  • · Replies 6 ·
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6

Solving for Acceleration with Tension and Friction

  • m3rc
  • · Replies 2 ·
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2

Show that the potential at a generic point for x positive is zero

  • blueyellow
  • · Replies 2 ·
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2

Calculating Forces and Speed of Falling Bucket into a Well

  • armolinasf
  • · Replies 1 ·
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1

Why is Average Velocity Defined Differently in Calculus?

  • vanmaiden
  • · Replies 6 ·
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6

Newton's Laws, bungee jump problem

  • jehan4141
  • · Replies 1 ·
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1

Pulley and collision dynamics practice problems

  • fterh
  • · Replies 9 ·
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9

Series and parallel circuit question

  • NeomiXD
  • · Replies 1 ·
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1

Induced emf as a magnet passes through a solenoid

  • fromthepast
  • · Replies 1 ·
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1

Equilibrium Problem(Tension of each cord)

  • durty53
  • · Replies 7 ·
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7
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5

Chadwick's discovery of the neutron - radiation

  • hubewa
  • · Replies 1 ·
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1

Frequency in an oscilloscope simulation

  • brekfast
  • · Replies 3 ·
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3

Using a Microwave Oven to Measure the Speed of Light

  • helpme2011
  • · Replies 4 ·
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4

Connecting a transformer backward

  • fromthepast
  • · Replies 1 ·
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1

Gauss' law which formula to use

  • teknonjon
  • · Replies 3 ·
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3

Using a graph to find velocity and position at a said time

  • themadcow45
  • · Replies 7 ·
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7

How Is the Net Force Between Two Dipoles Calculated?

  • lizardlad
  • · Replies 1 ·
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1

Deriving Velocity of Wedge Before Block Hits Ground

  • davidY
  • · Replies 16 ·
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16

2 vectors what third vector is needed to counter bakance the first 2?

  • calc3varbrg9e
  • · Replies 6 ·
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6