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

A moderate force will break an egg

  • 21ducks
  • · Replies 6 ·
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6

How Do You Calculate Entropy Change for an Isobaric Process?

  • lesodk
  • · Replies 8 ·
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8

Spring Compression: 2.5kg Block + 4.5kg Block

  • Oomair
  • · Replies 5 ·
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5

What is the oscillation frequency?

  • bcjochim07
  • · Replies 15 ·
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15

Conservation of linear momentum and inelastic collision

  • Lord Crc
  • · Replies 9 ·
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9

Finding amplitude and period when a mass drops onto a hanging spring

  • nightshade123
  • · Replies 7 ·
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7

Conservation of Momentum in Elastic Collision

  • missnur
  • · Replies 6 ·
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6

Effect of Liquid Level on Standing Wave Frequency in a Soda Bottle

  • MAins
  • · Replies 2 ·
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2

How Does Changing the Radius Affect Centripetal Force in a Lab Experiment?

  • whitesound
  • · Replies 2 ·
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2

Mech - Girder Section - Picture included

  • Chantry09
  • · Replies 3 ·
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3

Solving Force and Torque Equations for A and B

  • TheNormalForc
  • · Replies 7 ·
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7

Metal in Microwaves: Glass or Metal?

  • lisamay44
  • · Replies 1 ·
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1

Peak current at resonance in RLC circuit with 5µF capacitor

  • qustudent88
  • · Replies 1 ·
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1

Piston volume and pressure problem

  • zzoon
  • · Replies 3 ·
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3

Spring mass frequency and oscillator maximum speed

  • bcjochim07
  • · Replies 16 ·
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16

How Much Energy Was Lost to Friction for a Falling Satellite?

  • Sheneron
  • · Replies 2 ·
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2

Calculating Tire Pressure: Ideal Gas Law and Temperature Change

  • zcabral
  • · Replies 3 ·
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3

What Is the Jumper’s Speed at 12.5 m Above the Water?

  • sillydude
  • · Replies 2 ·
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2

What Speed Range is Safe for a Car on a Wet, Banked Curve?

  • Hydroshock
  • · Replies 3 ·
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3
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1

Positioning of a concave mirror

  • pmmiller14
  • · Replies 8 ·
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8

Heat Transfer, Blackbody Radiation

  • tiffancy1
  • · Replies 1 ·
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1

I think this is an energy problem

  • slammedtgs
  • · Replies 9 ·
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9

Maximizing Rotation: Solving the Clay & Pivoting Rod Problem

  • bcjochim07
  • · Replies 8 ·
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8

What Happens to the Cube's Velocity After Colliding with a Pivoting Rod?

  • bcjochim07
  • · Replies 5 ·
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5

Calculating Electron Motion in an AM Radio Broadcasting Circuit

  • WPCareyDevil
  • · Replies 2 ·
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2

Maximum spring compression with elastic and inelastic collisions

  • 1831
  • · Replies 7 ·
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7

Rocket thrust equation for 10 km/s with 4600 m/s exhaust

  • zcabral
  • · Replies 1 ·
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1

Calculate the torque about the potential pivot point

  • MAins
  • · Replies 1 ·
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1

Linear momentum and impulse problem

  • NoPhysicsGenius
  • · Replies 4 ·
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4

Relativity Problem: Find Passenger Speed Relative to Bank

  • bfr
  • · Replies 2 ·
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2

Ageing of the universe using percentages of Uranium?

  • coffeem
  • · Replies 2 ·
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2

Maximum Speed on Gym Floor with Coefficient of Friction of 0.8

  • neonjr
  • · Replies 12 ·
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12
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2

Which solution is correct (Tension)

  • SheldonG
  • · Replies 2 ·
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2

How to Determine Proton Movement in Electric and Magnetic Fields?

  • physicsbhelp
  • · Replies 72 ·
3
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72

Understanding Circuit Measurement Techniques and Symbols

  • Air
  • · Replies 1 ·
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1

Time for object to move from x=0 to x=6 cm in SHM

  • bcjochim07
  • · Replies 11 ·
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11

Impulse and momentum of two particles

  • Pagey
  • · Replies 5 ·
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5

Determine the period of the motion

  • aliciagu
  • · Replies 2 ·
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2

What is the Correct Way to Calculate the Period of Io?

  • Sheneron
  • · Replies 2 ·
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2

Can someone check my logic? simple harmonic motion.

  • aliciagu
  • · Replies 1 ·
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1

Why Does Mass Affect the Period in This Pendulum Problem?

  • bcjochim07
  • · Replies 7 ·
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7

Internal resistance of a solar cell; strange results?

  • cbs27
  • · Replies 1 ·
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1

Why does lamp C turn off when the switch closes?

  • sameeralord
  • · Replies 4 ·
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4

Griffiths' Notation for Vector from Source to Field Point

  • radiogaga35
  • · Replies 2 ·
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2

Calculating the Angle at which a Hanging Ring Will Rise with Two Sliding Beads

  • MathematicalPhysicist
  • · Replies 13 ·
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13

How to Solve Moment and Friction Problems in Mechanics

  • Chantry09
  • · Replies 9 ·
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9

What is the role of the phase constant in simple harmonic motion?

  • bcjochim07
  • · Replies 1 ·
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1

Two blocks - one on a table and one hanging - acceleration with friction

  • Hemmelig
  • · Replies 28 ·
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28

Force needed to make a disk climb a step

  • Towelie
  • · Replies 8 ·
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8

Pendulum conservation of momentum

  • bcjochim07
  • · Replies 7 ·
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7

Moment of Inertia: Where Does the 1/2 Come from?

  • kyin01
  • · Replies 3 ·
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3

Isochoric and Isobaric (Ch.15 problem #26 Wiley+)

  • trinot
  • · Replies 3 ·
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3

Finding the Phase Constant of a Sinusoidal Velocity Graph

  • bcjochim07
  • · Replies 13 ·
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13

Why are arch bridges stronger than beam ones?

  • jadoreparis30
  • · Replies 3 ·
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3

Thermodynamic cycle with isochoric, isobaric and linear processes

  • yuvlevental
  • · Replies 5 ·
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5

Tunneling Energy Changes: A Conceptual Question

  • EngageEngage
  • · Replies 5 ·
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5

Angular motion with constant acceleration

  • kyin01
  • · Replies 2 ·
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2
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3

How using the average velocity gives the exact value of s?

  • almirza
  • · Replies 2 ·
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2

Calculating Moment of Inertia for a Cylinder with Varying Radii?

  • TBoy
  • · Replies 4 ·
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4

Calculating Maximum Displacement of Pendulum from Ballistic Impact

  • Oomair
  • · Replies 4 ·
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4

Initial Angle of Pendulum: Solving for Angle Using SHM Equation

  • bcjochim07
  • · Replies 5 ·
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5

Kinematics of the human canon fly zaccini

  • Newton86
  • · Replies 6 ·
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6

Observing the Electric Field of a +4.3µC Charge

  • arabianchick
  • · Replies 1 ·
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1

Binding energy of lithium-7 nucleus

  • Couture
  • · Replies 1 ·
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1

Calculating Particle Distance from Density and Number

  • TFM
  • · Replies 15 ·
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15

Deriving Vector and position vectors from Force vector

  • HclGuy
  • · Replies 3 ·
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3

Electron accelerated between two point charges

  • HELLO11
  • · Replies 5 ·
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5

Find the Mass of Ice Needed to Cool 800mL Water to 0.0°C

  • cstout
  • · Replies 3 ·
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3

Dampened Harmonic Motion and oscillation

  • seichan
  • · Replies 9 ·
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9

How Do You Calculate the Mass and Radius of Planet Physics?

  • bcjochim07
  • · Replies 19 ·
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19

Solve Physics Problem: Urgent Cessna-182 Plane Mass 1290kg Glide Angle

  • sid88
  • · Replies 1 ·
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1

Amplitude of a pendulum with angle equation (.10 rad)cos(5t + pi)

  • bcjochim07
  • · Replies 4 ·
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4

Angular momentum of a thin uniform rod

  • A_lilah
  • · Replies 15 ·
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15

How Do You Calculate Centripetal Acceleration in Terms of g?

  • tascja
  • · Replies 6 ·
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6

Electron released between two positive point charges

  • HELLO11
  • · Replies 3 ·
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3

Binary and three-star systems with rotational orbits

  • bcjochim07
  • · Replies 2 ·
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2

Rubber balloon is rubbed against a wall and then sticks to the wall

  • European Sens
  • · Replies 7 ·
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7
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5

Nonsinusodial wave function problem

  • EngageEngage
  • · Replies 2 ·
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2

Free fall acceleration astronauts problem

  • bcjochim07
  • · Replies 2 ·
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2

Finding the potential difference of an alpha particle.

  • elephantorz
  • · Replies 1 ·
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1

What is the Coordinate of Point B in a Sinusoidal Wave?

  • jpond89
  • · Replies 3 ·
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3

Relativity: Breakdown in Simultaneity Question

  • egel
  • · Replies 2 ·
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2

Moon earth system escape velocity

  • bcjochim07
  • · Replies 1 ·
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1

Toy car conservation of angular momentum

  • bcjochim07
  • · Replies 4 ·
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4

Calculating Resultant of Forces on 6.2KG Box in Lift

  • DeanBH
  • · Replies 2 ·
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2

Where Do Magnetic Fields Cancel Out in Intersecting Wires?

  • doggy physics
  • · Replies 1 ·
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1

Why is the angle adjacent to the horizontal 30°?

  • King
  • · Replies 6 ·
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6
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2

Kinetic and Potential Energy calculation

  • Blubla
  • · Replies 2 ·
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2

Work in a circular track question

  • pcwizz
  • · Replies 15 ·
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15

Solving the Sliding Component Problem

  • miked
  • · Replies 6 ·
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6

Testing gradient against a value

  • garytse86
  • · Replies 1 ·
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1

Find the speed of the block at this point

  • fizwiz
  • · Replies 6 ·
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6

Light refraction from water at 23.0° to vertical

  • kaptinmorgan
  • · Replies 1 ·
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1

Minimum Coefficient of Friction for a Banked Curve

  • 72_Cutlass_S
  • · Replies 1 ·
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1

Why Does My Calculation Differ from the Textbook's Answer?

  • bcjochim07
  • · Replies 3 ·
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3