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.

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Calculating Impulse and Mass of a Basketball

  • giboneal
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Fluid Mechanics: Differential Hg Manometer

  • nicmat42
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Inelastic Collisions: Calculating Momentum

  • jmaier1
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1

Golf Ball Flight: Solving for Initial Speed & Max Height

  • wwommack
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1

Jumping Flea - Simple Kinematics

  • JG89
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Physics; two forces on an object

  • triplel777
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3

Variably Solving for Minimum Tangential Speed

  • CandyApples
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Lab Experiment - Uniformly Accelerated Linear Motion

  • Simply Is
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Magnitude in force of two blocks connected by rope.

  • asdehaan
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2
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16

Would a digital multimeter contain an A/D system?

  • nargle
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Finding Range of Possible Pitching Speeds

  • Mirole
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Suspended object, two rope system

  • Nal101
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Net force and components on a block pulled by rope at 35 degrees

  • Nal101
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3

Calculating the speed of an object

  • Nal101
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2

How Fast Must an Astronaut Spin for 2.89g Acceleration?

  • africanmasks
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Photoelectric effect with free electrons.

  • Ed Aboud
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Rate of change of momentum for object following a kissing circle

  • Nal101
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1
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4

How Is the Effective Stiffness of an Interatomic Bond Calculated in Iron?

  • magma_saber
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Calculating K.E: 0.0136 J Solution

  • sfx81
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2

Finding momentum change when a ball is struck by a stick

  • PolyFX
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1
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4

Wave Interference Pattern Question

  • wilson_chem90
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Dimensions of Force, Pressure: F, p

  • you_of_eh
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4

Physics: When a 58-g tennis ball is served?

  • triplel777
  • · Replies 6 ·
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6

Gravitational Force on Object Stationary to Earth's Surface

  • semc
  • · Replies 10 ·
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10

Friction and constant velocity

  • ffrancis
  • · Replies 3 ·
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Finding coefficient of static friction from force needed to start motion

  • ffrancis
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What is the Initial Charging Current and Charge Stored on a Capacitor?

  • alexburns1991
  • · Replies 4 ·
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4

What should I focus on for a special relativity test?

  • awri
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2

Algebra in Constant Motion Derivation.

  • sponsoredwalk
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Speed of a 3.72 kg block pulled by cord at an angle

  • Zhalfirin88
  • · Replies 6 ·
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Ball thrown to cliff (projectile problem)

  • Bryon
  • · Replies 9 ·
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9

How to Calculate Distance and Velocity in a Police Chase Scenario?

  • Rker
  • · Replies 3 ·
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3

Two-body elastic collisions in two dimensions

  • Zarathustra1
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4

How does velocity change when acceleration opposes initial motion?

  • 1irishman
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4
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How Does Air Resistance Impact Force During an Egg Drop Project?

  • lee132
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Monochromatic transverse wave problem

  • Gil-H
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Is the Momentum Calculation for the Circus Animals Accurate?

  • Ion1776
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Centrifuge Acceleration Calculations

  • kser
  • · Replies 5 ·
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Finding necesary Muzzle Velocity?

  • sciwizeh
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10

Finding a planet's mass from its orbit without a satellite

  • fredrick08
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Solving the Kinetic Friction and Tension of Two Blocks

  • mooney82
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Waiting for a Friend: Solving a Time Difference Problem

  • black_hole
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How to Determine E Field from Multiple Infinite Sheets?

  • {taylor}
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Acceleration of oneself to the moon

  • psilovethomas
  • · Replies 10 ·
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Calculate the buoyant force of a liquid

  • semc
  • · Replies 4 ·
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4

Calculating how to overcome drag

  • rosie_burk
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Heat engine efficiency and thermodynamics practice problems

  • bl75
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2

Fixing a Minor Circuit Mistake - Learn From My Experience

  • Oijl
  • · Replies 7 ·
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7

Capacitance Circuit - Voltage and Charge

  • PerfPhys
  • · Replies 1 ·
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Projectile motion: car leaving a 10 degree ramp

  • Rubix
  • · Replies 7 ·
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7

How Do I Solve for X in This Complex Physics Equation?

  • pookisantoki
  • · Replies 5 ·
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5

Fallin with constant speed what is the force of air resistnace

  • kennymr22
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Backpacker's average velocity with eastward return walk

  • crono_
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What is the acceleration of a car on a semicircular track?

  • tjohn101
  • · Replies 5 ·
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Find the friction force impeding its motion

  • kwehner
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When does car B catch up with car A in a race with a head start?

  • halbe1
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Physics football tackle problem

  • briguy1812
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How do slope and y-intercept change when reversing axes on a linear graph?

  • unigal13
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Acceleration as a function of time

  • halbe1
  • · Replies 5 ·
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5

Package Drop Time Calculation for Ascending Helicopter

  • halbe1
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10

How Does Kinetic Friction Affect Acceleration and Speed of a Block?

  • jrk613
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Finding Initial Velocity with Given Acceleration Ratio

  • jacksonpeeble
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2

Minimum Force for Moving a Sled on a Horizontal Surface

  • tutojean
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3

How Does a Sprinter's Acceleration Affect Race Time?

  • SuperCass
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Is the Pulley System in Equilibrium?

  • engineer248
  • · Replies 3 ·
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3

Force on object at angle to acceleration

  • djtsmith007
  • · Replies 3 ·
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How Do You Solve for g in the Equation a = 1/(1+C) g sin θ?

  • einsteinette
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3
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1

Average net force on stunt double falling 12 m onto landing pad

  • Ion1776
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Chasing Cats and Dogs: Solving for Time and Distance

  • ILC grade 11
  • · Replies 2 ·
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How high is the cliff and speed of sound?

  • katamoria
  • · Replies 6 ·
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How to Find Heat Absorbed and Entropy Change in a Copper Block?

  • dancergirlie
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Net force on charge A from three charges at rectangle corners

  • Sprite101
  • · Replies 5 ·
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5

Finding Initial Velocity w/o Time to clear a specific height

  • jkcali2ooo
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8

Car accelerating uniformly through semicircular arc at Indianapolis 500

  • tjohn101
  • · Replies 16 ·
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16

Point Charge accelerated by charged ring

  • riincanavi1
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2

How Do You Solve for X in a Basic Statics Problem?

  • Jim Newt
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1

Circular motion jet fighter problem

  • bcjochim07
  • · Replies 1 ·
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Book pushed against wall with friction

  • peterpam89
  • · Replies 2 ·
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2

Very Basic Physics that I'm struggling on

  • aguycalledwil
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Elastic collision neutron problem

  • thornza
  • · Replies 12 ·
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12

Displacement, velocity and acceleration

  • pookisantoki
  • · Replies 1 ·
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How can I find the velocity of a proton?

  • peaceinmideas
  • · Replies 5 ·
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5

Rocket Thrust Balancing Gravity

  • Piamedes
  • · Replies 4 ·
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4

Two-stage rocket with changing acceleration

  • UNDEAD WAFFLE
  • · Replies 1 ·
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2-Dimensional Motion (non-trajectory)

  • joeG215
  • · Replies 8 ·
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8

Free Falling Bodies: Calculating Time for Wrecking Ball

  • pookisantoki
  • · Replies 5 ·
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Calculating Multistage Rocket Velocities

  • Piamedes
  • · Replies 2 ·
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2

Normal force at the top of a hill

  • Tin Man
  • · Replies 3 ·
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3

Backpacker's average velocity: 5.58km west then east

  • pookisantoki
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Basic Kinematics Questions - What's wrong with my answers?

  • Rker
  • · Replies 6 ·
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Calculating Displacement of a Diver in Free Fall

  • pookisantoki
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3
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F=Ma Problem Help: Kinetic Energy of Rotating Device

  • euroazn
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How does mass affect the launch of a catapult and the projectile flight?

  • ericahlstedt
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