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

The maximum height an object on a wire moves after a collision

  • imatreyu
  • · Replies 3 ·
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3

Does the pressure increase or decrease?

  • zorro
  • · Replies 10 ·
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10

How far does a block travel before encountering a spring?

  • preluderacer
  • · Replies 15 ·
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15

How Far Does a Car Travel Accelerating Uniformly from Rest to 20 m/s West?

  • kselanders
  • · Replies 1 ·
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1
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2

How Much Force Is Needed to Move a 59 kg Crate?

  • anthonyr
  • · Replies 4 ·
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4

Minimum force to prevent small block sliding down larger block

  • richard karn
  • · Replies 1 ·
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1

Forces problem with a crate, what's doing the work?

  • alchemist31
  • · Replies 1 ·
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1

Calculating the Work Done by Normal Force on a Sliding Piano

  • tica86
  • · Replies 5 ·
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5

How to find displacement in a position v time graph?

  • deaninator
  • · Replies 2 ·
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2

Jack and Jill's Race: Solving a Physics Problem

  • deaninator
  • · Replies 4 ·
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4

Angular Deceleration of a Bicycle Wheel

  • bmoore509
  • · Replies 5 ·
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5

Arrow embeds in wooden block, how far does it slide

  • stonecoldgen
  • · Replies 1 ·
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1
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2

What is the coefficient of kinetic friction on a 30 degree ramp?

  • drummerjason
  • · Replies 2 ·
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2

Force between two objects moving together

  • aishax
  • · Replies 4 ·
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4

Tension in vertical circular motion when object is sideways

  • John H
  • · Replies 3 ·
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3

Acceleration of a Cart Pulled by Different Forces

  • runningirl
  • · Replies 1 ·
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1

Gravitational potential energy problem

  • ohheytai
  • · Replies 14 ·
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14

Why Does Calculating Runner A's Distance Give Different Results?

  • deaninator
  • · Replies 3 ·
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3
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1

Minimum distance to avoid collision with reaction time

  • deaninator
  • · Replies 23 ·
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23

Beat frequency when there are phase constants

  • nietzsche
  • · Replies 1 ·
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1

What is B (beta) for transistor?

  • Acuben
  • · Replies 1 ·
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1

Can a Car Move Up a Hill with Only 30N of Frictional Force?

  • pb23me
  • · Replies 2 ·
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2

How Do You Calculate Kinetic Energy in AP Physics Problems?

  • Absolute Zero
  • · Replies 4 ·
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4

Net force on 1700kg car on 220m circular track at 24m/s

  • Randy3463
  • · Replies 3 ·
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3
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6

How Does Angle Affect the Acceleration of a Thrown Ball?

  • spyroarcher
  • · Replies 5 ·
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5

What is the equation for capacitance of a coaxial cable?

  • jumpboy
  • · Replies 5 ·
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5

Angled Force Problem: Solving for Object Position, Velocity, Speed

  • mwhowell
  • · Replies 1 ·
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1

How Much Faster Will a Rock Travel If Thrown at 30 m/s From an Asteroid?

  • ohheytai
  • · Replies 1 ·
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1

Solve Physics HW: Find Net Force at t=2.00s

  • scirfy
  • · Replies 1 ·
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1
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6

Finding work to move a 4000 kg satellite from Earth orbit to infinity

  • ohheytai
  • · Replies 1 ·
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1

Solving Block on a Wedge: Find Distance Slid by Triangle

  • bmoore509
  • · Replies 1 ·
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1

Max speed of a mass on a spring given x=0

  • khairurraziq
  • · Replies 2 ·
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2

Does Heating a Balloon Affect its Surface Energy?

  • zorro
  • · Replies 2 ·
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2

Conservation Laws and Collisions with a Spring

  • nibbles198
  • · Replies 8 ·
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8

Rank Designs A-F: Largest to Smallest Tension

  • wanamaa
  • · Replies 2 ·
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2

RC circuit with switch: finding initial current i(0+)

  • EEhokie13
  • · Replies 6 ·
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6

Projectile Question involving angular velocity and acceleration

  • m84uily
  • · Replies 3 ·
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3
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3

Solving Heat Capacity Problems with Specific Heat Equations

  • WMM
  • · Replies 1 ·
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1

Relative Extension of Collagen Fiber: %0.8

  • edorf
  • · Replies 2 ·
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2

Work and Changes in Kinetic Energy Experiment

  • KatlynEdwards
  • · Replies 3 ·
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3

Does Shaking and Settling Affect the Weight of a Milk Bottle?

  • Fruh2theline
  • · Replies 3 ·
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3

Free fall problem with an extra variable

  • mwhowell
  • · Replies 1 ·
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1

Static and kinetic friction involving velocity

  • enrijuan
  • · Replies 11 ·
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11

What Is the Initial Projection Angle of a Projectile at Maximum Height?

  • militant07
  • · Replies 2 ·
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2

Projectile Motion Question - Not enough info?

  • Sean1218
  • · Replies 11 ·
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11

What Is the X Coordinate of the Particle?

  • Meadman23
  • · Replies 3 ·
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3
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1

Angle and speed of can after collision

  • gap0063
  • · Replies 2 ·
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2

Flat plate, circular hole center of mass

  • gap0063
  • · Replies 10 ·
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10

Calculating Forces in a Helicopter Lift: F=ma and Cable Tension

  • runningirl
  • · Replies 2 ·
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2
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3

How much do the bed springs stretch when a person jumps on them?

  • vinnyzwrx
  • · Replies 2 ·
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2

Ii cant seem to figure this out

  • 1waystrpark
  • · Replies 3 ·
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3

Calculating Total Energy of Object

  • Sixty3
  • · Replies 1 ·
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1

How to answer question on momentum?

  • Sixty3
  • · Replies 1 ·
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1

What is the work done by gravitation

  • breakoutecho
  • · Replies 3 ·
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3

Can Kinematics and Energy Conservation Solve the Egg Drop Problem?

  • claudiairiond
  • · Replies 1 ·
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1

Comet Speed at 6x10^12 m from Sun

  • ohheytai
  • · Replies 1 ·
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1

Calculating Magnetic Force on a Charged Particle

  • roam
  • · Replies 1 ·
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1

Optimal Dragster Exhuast Pipe Angle: Energy of Systems and Force

  • winowmak3r
  • · Replies 1 ·
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1

Calculating Moment of Inertia for a Thin Spherical Shell

  • tak08810
  • · Replies 1 ·
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1

Formulas for Molar Heat Capacity at Constant Pressure/Volume

  • mneox
  • · Replies 1 ·
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1

Projectile Motion test problem, involving unk. v0 and y displacement.

  • prohme
  • · Replies 3 ·
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3

Finding initial speed for rocket launched from mountain

  • huynhtn2
  • · Replies 8 ·
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8

Find mass and velocity of third fragment in 0.4kg shell explosion

  • farrah003
  • · Replies 1 ·
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1

How to find the acceleration of a block being pushed

  • friar
  • · Replies 1 ·
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1

Kinematics: Final velocity components

  • huynhtn2
  • · Replies 3 ·
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3

Tension in rod when 2.0-kg ball swings through bottom of vertical circle

  • preluderacer
  • · Replies 8 ·
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8

Physics. Gr.11. Kinetic Friction.

  • Kazia
  • · Replies 1 ·
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1

Finding velocity of point Z3 from velocities of Z1 and Z2

  • PhysicsGenius
  • · Replies 11 ·
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11

What is the minimum stopping distance of a truck with locked brakes?

  • DrummingAtom
  • · Replies 2 ·
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2

How Fast to Launch an Object from Mercury for a Final Speed of 3000 m/s?

  • ohheytai
  • · Replies 1 ·
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1

Solve for Average Acceleration: Flying East with Helium

  • W_ace
  • · Replies 2 ·
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2

Find the Origin of the Kicked Soccer Ball

  • Eash
  • · Replies 2 ·
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2

How to Calculate Tension in a Rope for a Drawbridge with a Rusty Hinge?

  • uchicago2012
  • · Replies 1 ·
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1

Calculating Average Acceleration for a Slow, Level Turn

  • aishax
  • · Replies 2 ·
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2

Calculate Torque of Force F Applied at r Around Origin

  • uchicago2012
  • · Replies 1 ·
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1

What Effects Will the New Sphere Have on Water Level L?

  • needhelpfast
  • · Replies 1 ·
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1

How does plaque affect pressure in an artery?

  • needhelpfast
  • · Replies 1 ·
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1

Work done on a system by an external force Problem

  • VitaX
  • · Replies 15 ·
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15

Oh man, I don't understand anything about forces Dx

  • lolsherry
  • · Replies 3 ·
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3

Use work/energy throem to derive an expression for moment of inertia?

  • mattpd1
  • · Replies 5 ·
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5

Shoot a Rocket off a Cart and through the Hoop

  • Phoenixtears
  • · Replies 2 ·
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2

Finding length of driveway (work-kinetic energy theorem)

  • alyston
  • · Replies 3 ·
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3

Simple 2-D Uniform Motion Problem

  • aishax
  • · Replies 4 ·
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4

How Does Work Affect the Energy of a Helium Nucleus?

  • ohheytai
  • · Replies 2 ·
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2

Acceleration of 2.7kg blocks on incline with hanging mass

  • pb23me
  • · Replies 7 ·
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7

Finding Initial Velocity with no time or other Velocities

  • Hypnos_16
  • · Replies 15 ·
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15

Elastic collision with two masses and spring

  • eventob
  • · Replies 7 ·
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7

Solve Forearm Equilibrium: Calculate Force Held by Biceps

  • Tina20
  • · Replies 3 ·
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3

Can a bullet be fired if time is frozen?

  • gengarjetty
  • · Replies 13 ·
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13

Bullet velocity using impulse-momentum

  • JJBladester
  • · Replies 11 ·
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11

Angular velocity of a merry go round after a child has jumped onto it

  • Tina20
  • · Replies 6 ·
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6

Centripetal force and acceleration problem

  • ScienceGirl90
  • · Replies 3 ·
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3