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

What is the Velocity and Distance of a Block on an Incline?

  • xjasonx1
  • · Replies 2 ·
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2

Displacement proportional to t^3/2 for constant power motion

  • deathnote93
  • · Replies 2 ·
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2

Maximum height and range of arrow shot at 30 degrees

  • Trizz
  • · Replies 2 ·
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2

Find Velocity of Ball After 3 Seconds

  • look416
  • · Replies 3 ·
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3
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2

Calculating how much kinetic energy is transfer?

  • Jac8897
  • · Replies 4 ·
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4

Magnitude and direction of impulse of baseball

  • dorian_stokes
  • · Replies 8 ·
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8

Questions in [ motion in two dimensions ]

  • mo3az
  • · Replies 2 ·
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2

Calculating force needed to hit a marble 1.5-1.6m with a swinging hammer

  • kylelomba8
  • · Replies 8 ·
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8

What does dt mean in the impulse integral?

  • WahooMan
  • · Replies 2 ·
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2

Square wire coil in vertical magnetic field equilibrium angle and torque

  • vu95112
  • · Replies 6 ·
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6

Piston thermodynamics - find P, V and T

  • hadroneater
  • · Replies 4 ·
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4

Gravitational potential energy bead of mass

  • ttja
  • · Replies 2 ·
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2

Electrons through wire work physics problem

  • tag16
  • · Replies 1 ·
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1

Ideal Projectile Motion , horizontal and vertical components

  • djester555
  • · Replies 1 ·
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1

Simple drift speed probem driving me nuts

  • ttran1117
  • · Replies 1 ·
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1

Solve Constrained Motion: Aa, Ab, Ac, Ad

  • makeez
  • · Replies 1 ·
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1
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4

How to Find Maximum Compression of a Spring on a Ramp?

  • bricker9236
  • · Replies 3 ·
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3

How Do You Calculate Particle Position and Velocity Components?

  • waldvocm
  • · Replies 6 ·
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6

Where is the Max Electrostatic field?

  • Bloo_Mec
  • · Replies 1 ·
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1

What Is the Moment of Inertia of a Flywheel Accelerated by a Motor?

  • FauxNews
  • · Replies 9 ·
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9

Rifle shoots bullet into pendulum What am I doing wrong?

  • WahooMan
  • · Replies 5 ·
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5

Property of thermometric substance

  • songoku
  • · Replies 4 ·
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4

Applying Newton's Laws Projected Up an Incline

  • djester555
  • · Replies 1 ·
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1

Kinetic energy (tough algebra problem)

  • captainsmith1
  • · Replies 2 ·
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2

How Much Force Did the Pitcher Exert on the Fastest Baseball Pitch?

  • kaiazad
  • · Replies 2 ·
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2

Calculating Velocity of a Pendulum at Different Angles

  • WahooMan
  • · Replies 3 ·
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3

How Much Weight Must Block C Have to Prevent Block A from Sliding?

  • djester555
  • · Replies 1 ·
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1

What is the speed of the gum as seen by the center of the wheel?

  • underoath0101
  • · Replies 1 ·
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1

Finding ymax and ymin of a ball thrown straight into the air

  • babygiggles85
  • · Replies 1 ·
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1

Head-on elastic collision: find height after m1 bounces back

  • dynoma5
  • · Replies 6 ·
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6

Solving Motorcycle Acceleration and Time Problems with Initial Velocity of 8m/s

  • highcontrast
  • · Replies 5 ·
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5

Going over my first exam (Kinematics)

  • Chandasouk
  • · Replies 2 ·
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2

How Do I Solve These Car Acceleration Problems?

  • nina09
  • · Replies 16 ·
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16

When to use sine vs. cosine for normal force on an incline?

  • WahooMan
  • · Replies 15 ·
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15
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2

Coefficient of Static Friction Mass on Turntable

  • WahooMan
  • · Replies 3 ·
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3

Gas Laws and Thermodynamics questions

  • hadroneater
  • · Replies 4 ·
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4

Acceleration with respect to displacement?

  • DavyCrocket20
  • · Replies 1 ·
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1

Find the magnitude and direction of a magnetic field(Biort-Savart Law)

  • Raziel2701
  • · Replies 2 ·
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2

Finding takeoff speed for a long jump at 30 degrees

  • SirMarksAlot
  • · Replies 16 ·
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16

Block on vertical spring with initial velocity

  • r34racer01
  • · Replies 5 ·
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5

How Much Force is Needed to Move a Block Against Friction and Gravity?

  • mslena79
  • · Replies 9 ·
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9

Find the final velocity of the two pucks after the collision

  • dorian_stokes
  • · Replies 2 ·
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2

How High Is the Diving Platform?

  • Londoncalling
  • · Replies 7 ·
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7
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12

Accelerating an Electron to 18.6 keV

  • briguy01
  • · Replies 1 ·
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1

Calculating Horizontal Force on a Frictionless Ramp: A 100kg Crate Problem

  • the_EVIL
  • · Replies 3 ·
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3

How High and How Long Does a Volleyball Go When Hit Upwards?

  • inedhelpinphy
  • · Replies 4 ·
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4

Effect of Faucet Location on Water Discharge from a Tank

  • ultimateceej
  • · Replies 3 ·
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3

Spring-mass system with force F=k(L-x) across the origin

  • mogen317
  • · Replies 2 ·
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2

Normal force on a roller coaster descending a 45° hill

  • Dmitri10
  • · Replies 1 ·
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1

How long does it take for a high-speed train to come to a complete stop?

  • baylayA
  • · Replies 5 ·
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5

Windmill power generation problem

  • UFeng
  • · Replies 10 ·
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10

How Much Force to Accelerate a Rocket Sled to 1000 km/h in 1.8 Seconds?

  • baylayA
  • · Replies 2 ·
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2

Vector Addition and Flight Planning

  • SirMarksAlot
  • · Replies 4 ·
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4

Converting acceleration to velocity to displacement graph

  • captainsmith1
  • · Replies 2 ·
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2

Automobile collision force problem

  • mowassel
  • · Replies 2 ·
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2

How Is Tension Calculated in a Two-Object System on an Inclined Plane?

  • phish
  • · Replies 1 ·
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1

How Do You Calculate an Electron's Motion in a Magnetic Field?

  • exitwound
  • · Replies 3 ·
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3

Max Acceleration of a Bungee Jumper

  • dhtml12345
  • · Replies 2 ·
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2

Maximum speed of cylinder on rotating turntable before skidding

  • adhoward24
  • · Replies 1 ·
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1

How Do You Solve a Vector Mechanics Problem in Polar Coordinates?

  • Bobafable
  • · Replies 2 ·
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2

Finding Mu Without Friction Data

  • ConfusedPupil
  • · Replies 2 ·
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2

Derivation of Work-Energy Theorem

  • IncognitoSOS
  • · Replies 1 ·
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1

How Does Physics Solve Practical Problems Involving Forces and Motion?

  • Cowtipper
  • · Replies 6 ·
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6

Electron travel in a wire; distance

  • megr_ftw
  • · Replies 1 ·
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1

What does a scale read with 100N masses hanging from each side?

  • JustinvanZyl
  • · Replies 1 ·
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1

Friction acting on rolling wheel

  • mbrmbrg
  • · Replies 7 ·
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7

Coefficient of Kinetic Friction, Normal Force.

  • Laura EK
  • · Replies 1 ·
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1

Woman running on a raft: finding velocity relative to water

  • lilmul123
  • · Replies 3 ·
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3

Forces on an inclined plane, kinetic friction How is this wrong?

  • neutron star
  • · Replies 3 ·
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3

How Long Does Moon E Take to Orbit Planet?

  • Want to learn
  • · Replies 4 ·
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4

Distance Between Center Of Masses

  • Warmacblu
  • · Replies 3 ·
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3

How Do You Calculate the Force Exerted on a Rocket at Takeoff?

  • Senjai
  • · Replies 6 ·
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6

Momentum - Throwing coal out of railroad car

  • Bryon
  • · Replies 4 ·
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4

Gravitational and electric fields

  • confusedpilot
  • · Replies 1 ·
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1

Mechanical energy lost to friction during a baseball slide

  • sarahjt1
  • · Replies 4 ·
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4

Calculating Altitude in Geostationary Orbit

  • Want to learn
  • · Replies 5 ·
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5

Simple work and accleration problem

  • highcontrast
  • · Replies 3 ·
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3

Right Hand Rule - Positive or Negative Action

  • tornzaer
  • · Replies 4 ·
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4

Work and Rotational Kinetic Energy

  • G-reg
  • · Replies 2 ·
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2

Beetle on a Pendulum Homework: Solving Displacement & Speed

  • Warmacblu
  • · Replies 8 ·
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8

Proton and magnetic field question to see if i got the answers right?

  • taylor.simon
  • · Replies 1 ·
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1

A bullet with a velocity of 575m/s Use work and energy considerations

  • sarahjt1
  • · Replies 2 ·
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2

Energy with springs on an angle

  • desichick07
  • · Replies 4 ·
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4
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9
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1

What is the total distance traveled by the mass on a compressed spring?

  • Jinzui
  • · Replies 2 ·
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2

Gauss's TheoremNet Force due to Uniform Pressure on a Closed Surface = 0

  • Saladsamurai
  • · Replies 2 ·
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2

How Do You Calculate Building Height Using Free Fall Formulas with Given Times?

  • PhunPhysicsss
  • · Replies 1 ·
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1

When Does the Box Start to Slip on the Ramp?

  • Chandasouk
  • · Replies 5 ·
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5

What is the Work Done in Circular Motion?

  • songoku
  • · Replies 5 ·
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5

Mechanics Elastic springs question

  • rbnphlp
  • · Replies 3 ·
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3

How to calculate horizontal angle from from (Iphone) Accelerometer data.

  • RaviTiwari
  • · Replies 5 ·
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5

Mosquito being charged by dinosaur

  • chris097
  • · Replies 1 ·
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1

Charge of a neutral chromium-52 atom

  • nikelberry
  • · Replies 4 ·
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4

Electron within a Magnetic Field

  • exitwound
  • · Replies 16 ·
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16

Speed of light in certain medium

  • songoku
  • · Replies 2 ·
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2