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

I need ideas about a case study report.

  • elishamei9000
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9

Toy car moving in a horizontal ring.

  • peripatein
  • · Replies 14 ·
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14

EM waves and blackbody radiation question

  • AlaskanPow
  • · Replies 1 ·
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1

Projectile Motion Calculations for a Shell Fired at 30 Degrees

  • mc2_phy
  • · Replies 4 ·
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4
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3

Calculating Mass and Tension of Stone Suspended from Pulley

  • oldspice1212
  • · Replies 9 ·
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9

Finding the factor by which two operators differ.

  • H.fulls
  • · Replies 3 ·
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3

Surface tension of a liquid layer within frame with elastic wire

  • peripatein
  • · Replies 18 ·
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18

Spacetime diagram based question.

  • ronsonol
  • · Replies 1 ·
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1

Rotational Kinematics (String attached to disk)

  • mattj150
  • · Replies 3 ·
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3

Motion in a magnetic field [Magnetism]

  • orangefruit
  • · Replies 11 ·
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11

Calculate Equilibrium Temperature

  • McDonell
  • · Replies 2 ·
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2

What is the moment of inertia of a cone spinning about its symmetry axis?

  • oliveyew1
  • · Replies 1 ·
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1

Average horizontal speed of a gorilla swinging on vines

  • Quotexon
  • · Replies 6 ·
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6

Energy transfer and power in climbing stairs

  • whatwhat11
  • · Replies 12 ·
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12

Generator from a power plant delivering electric power

  • lisanoir
  • · Replies 1 ·
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1

Latent heat and Clapeyron equation

  • Telemachus
  • · Replies 2 ·
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2
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1

Instantaneous current in a reisistor, capacitor and inductor

  • lisanoir
  • · Replies 1 ·
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1

Small transformers that power products

  • lisanoir
  • · Replies 1 ·
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1

How Much Force Is Needed to Lift a 2N Block Upwards by 2 Meters?

  • XavierYue
  • · Replies 10 ·
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10

Atmospheric Pressure Above the Sea Level

  • anomalocaris
  • · Replies 4 ·
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4

Capacitor circuit exam question

  • ofeyrpf
  • · Replies 3 ·
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3

What Is the Distance the Block Travels Through the Air?

  • rocapp
  • · Replies 1 ·
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1
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1

How Many Constructive Interference Fringes Are Formed on the Screen?

  • Wheelwalker
  • · Replies 1 ·
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1

Conservation of Energy Problem - Very Tricky

  • doug1
  • · Replies 3 ·
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3

Calculating the density parameter (Cosmology)

  • Hangst
  • · Replies 2 ·
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2

Force due to gravity inside planet

  • Undoubtedly0
  • · Replies 3 ·
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3

Time for a Droplet of Water to Fall .25m from Hole

  • skoopfadj
  • · Replies 3 ·
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3

Would you say this is proper scientific inquiry?

  • Fifty
  • · Replies 4 ·
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4

Acceleration of m1 pulled over two pulleys with pulley masses

  • cener
  • · Replies 4 ·
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4

Deriving the solution for a free particle from the TISE

  • CAF123
  • · Replies 5 ·
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5

How to Calculate the maximum transvers accleration and velocity

  • Dizzylou
  • · Replies 1 ·
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1

Find the object location with ray optics

  • Workout
  • · Replies 2 ·
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2

Calculating Moment of Inertia from Ball Angular Momentum Problem?

  • togg
  • · Replies 1 ·
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1

Conservation of Energy in a Rigid Body

  • merovingian12
  • · Replies 1 ·
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1

How Do You Calculate the Mass of an Asymmetrical Ruler in Equilibrium?

  • Jedijawad
  • · Replies 1 ·
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1

Integrating velocity at a specific time to find position

  • Lenjaku
  • · Replies 2 ·
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2

Terminal Speed in Projectile Motion under Air Resistance

  • th4450
  • · Replies 1 ·
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1

Problem involving the human body and rate of heat transfer

  • chinnie15
  • · Replies 6 ·
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6
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5

What is the Hydrogen Emission Spectrum for Transitions to the n = 1 Level?

  • d.tran119
  • · Replies 2 ·
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2

Light ray passing thru plastic block

  • herbally
  • · Replies 3 ·
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3

Simple Harmonic Motion: Period Dependence on Variables and Curve Fitting

  • wizzpowa
  • · Replies 1 ·
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1

Moment of Inertia for 3 masses, on an axis

  • matxjos
  • · Replies 5 ·
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5

Work/Energy of Two Bungee Jumpers

  • kcolman
  • · Replies 3 ·
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3

Conservation of energy, A bomb explodes into three pieces

  • ErikiaMeno
  • · Replies 1 ·
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1
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17

Catapult Lab could someone assist me?

  • DLovas
  • · Replies 1 ·
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1

Relating increament of speed to time

  • MoniMini
  • · Replies 3 ·
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3

To increase the temperature of 50 grams of water by 2 Celsius degrees requires

  • pmalayavech
  • · Replies 1 ·
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1

I finding a good study resource for AP Physics BC

  • ukballer1012
  • · Replies 1 ·
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1

When does a ball enter free fall?

  • tahayassen
  • · Replies 12 ·
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12

Is the Net Force on a Hockey Puck Correctly Calculated?

  • pt20army
  • · Replies 2 ·
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2

Unbalances and balanced forces

  • pt20army
  • · Replies 1 ·
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1
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4

Forces to hold a board at an angle in equilibrium

  • Lotus93
  • · Replies 5 ·
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5
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2

Circuit - Why a more accurate value of the resistance?

  • vadevalor
  • · Replies 3 ·
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3

Example in the book I don't understand fully

  • Genericcoder
  • · Replies 3 ·
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3

How Does Resistive Force Affect a Cricket Ball's Flight?

  • physicshawk
  • · Replies 3 ·
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3

Finding the final temperature of mixed ice and steam

  • kiro484
  • · Replies 10 ·
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10

Determining Spring Constant After Collision

  • fdajkffk
  • · Replies 1 ·
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1

Calculate Gravitational Field Strength

  • fdajkffk
  • · Replies 1 ·
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1

Force between two touching bodies pushed by external force F

  • johsun123
  • · Replies 3 ·
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3

Pressure problem but without any given values. How?

  • evilrain14
  • · Replies 3 ·
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3

Why does a = √(a_t² + a_r²) work?

  • AJBalbirnie
  • · Replies 6 ·
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6

Physics modeling for sky lantern

  • radhos
  • · Replies 1 ·
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1

Pressure problem but without given values. How?

  • evilrain14
  • · Replies 4 ·
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4

How to Calculate Velocity with Air Drag and Given Variables?

  • michelle2011
  • · Replies 6 ·
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6

Does Gravity always move an object down the path with the steepest slope?

  • PeteyCoco
  • · Replies 1 ·
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1

How Does an Inductor Work in a Circuit?

  • Kenny Lee
  • · Replies 11 ·
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11

Problem Relating Temperature and Thermal Energy

  • chinnie15
  • · Replies 2 ·
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2

Finding the final temperature when steam and ice are mixed

  • kiro484
  • · Replies 26 ·
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26

Angle, Direction, and Speed after an Elastic or Inelastic Collision

  • Joel_M
  • · Replies 1 ·
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1

Solid Elasticity, Steel Rod shortening

  • Siune
  • · Replies 4 ·
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4

Angular Frequency of Damped Oscillator

  • cd6
  • · Replies 1 ·
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1

Work done on a Van der Waals gas with a mobile wall

  • Jalo
  • · Replies 1 ·
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1

What is the pressure at the bottom of the flask?

  • NasuSama
  • · Replies 7 ·
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7

Calculating Final Speed of Sled with Bobsledders Jumping In

  • fdajkffk
  • · Replies 1 ·
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1
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6

Very different pressure problem

  • NasuSama
  • · Replies 9 ·
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9

Electron and Proton Binding energy

  • Lolagoeslala
  • · Replies 1 ·
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1

Exploding shell at the top of its trajectory

  • johnhuntsman
  • · Replies 2 ·
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2

When are two equal and opposite forces about an axis not a couple

  • mrcotton
  • · Replies 8 ·
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8

Linearising Eqn for Fractal dimension

  • CAF123
  • · Replies 3 ·
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3

Angular Acceleration of toy train

  • carleon
  • · Replies 4 ·
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4

Change in gravitation potential energy in space

  • Lolagoeslala
  • · Replies 5 ·
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5

Thermodynamics - Calorific Capacity

  • Jalo
  • · Replies 1 ·
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1

Apparent depth of object in pool using 5 degree ray angle

  • link107
  • · Replies 1 ·
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1

Angular acceleration and displacement problem

  • Lotus93
  • · Replies 1 ·
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1

Calculating the moment of inertia in a pulley system

  • mldavis086
  • · Replies 2 ·
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2

First Bohr Radius - Quantum and Atomic Model

  • PeachBanana
  • · Replies 7 ·
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7
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13

Prove that a cylinder has the least moment of inertia

  • whyme1010
  • · Replies 12 ·
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12

Hello, good people - Flagpole rigidity questions

  • TameTroll
  • · Replies 5 ·
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5

Gravitational potential energy, orbital speed, binding energy.

  • Lolagoeslala
  • · Replies 3 ·
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3

Gravity on Earth: 70% Value Above Surface?

  • zzinfinity
  • · Replies 2 ·
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2

How Do You Calculate the Speed of a Bungee Jumper 19m Below the Launch Point?

  • BlueCardBird
  • · Replies 7 ·
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7