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

Horizontal veolocity given vertical velocity and angle

  • IAmSparticus
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1

Horizontal and vertical velocity components

  • IAmSparticus
  • · Replies 1 ·
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1

How Do You Calculate the Angle in a Spinning Mass Problem?

  • Zhalfirin88
  • · Replies 7 ·
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7

Calculating Marble's Initial Height Using Projectile Motion Equations

  • IAmSparticus
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1
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1

Rolling ball down a slope, how to find final velocity?

  • woodie37
  • · Replies 2 ·
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2

Calculating Energy Stored in a Two-Spring System

  • Skuzzy
  • · Replies 2 ·
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2

What is the Average Angular Acceleration of a Fan?

  • Ion1776
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1

Dimensional analysis, I'm kinda lost

  • coasterguy
  • · Replies 1 ·
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1

Couple of relative velocity problems.

  • Raheelp
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1

Motion & Force: Calculate Force from Car Collision w/ Abutment

  • tjbateh
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1

Solving for Tension in Elevator Cable: 2300 kg, 50 m, 12 m/s

  • tjbateh
  • · Replies 1 ·
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1

What Is The Complete Formula Of A Lever?

  • EnquiringMind
  • · Replies 3 ·
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3

Solve 2D Motion Homework: Throw Football 196.6m at 25°

  • IAmSparticus
  • · Replies 1 ·
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1

How Fast Must a Volcanic Bomb Travel to Reach a Certain Point?

  • kara
  • · Replies 3 ·
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3

Applications of the Equations of Kinematics for Constant Acceleration

  • jacksonpeeble
  • · Replies 2 ·
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2

Navigating Integration for Electric Fields & Flux

  • Josh930
  • · Replies 1 ·
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1

How do I locate the centroid and the center of gravity of a square pyramid?

  • physicshelp75
  • · Replies 6 ·
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6

Deceleration due to Frictional Force

  • Esran
  • · Replies 20 ·
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20

Again an electric potential question ?

  • Fazza3_uae
  • · Replies 7 ·
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7

How to find current of resistor in complex circuit?

  • Schoomy
  • · Replies 5 ·
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5

Two-loop circuit using Kirchoff's Laws

  • HEYJOHN
  • · Replies 2 ·
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2

Solving the Truck Stopping Distance Problem

  • quietrain
  • · Replies 7 ·
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7

What Is the Minimum Speed Required for a Car to Jump Over Eight Cars?

  • fattydq
  • · Replies 1 ·
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1

How Far Apart Are the Stop Signs?

  • kingpin29
  • · Replies 1 ·
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1

A Different kind of kinematics problem

  • numberjuan412
  • · Replies 3 ·
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3

Vector components with unknowns, ultimately adding to zero.

  • Lassitude
  • · Replies 10 ·
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10

Car Runs Out of Gas on 9.0 Slope - What Happens Next?

  • grizzly44
  • · Replies 3 ·
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3

Force on a Frictionless Surface

  • tjbateh
  • · Replies 2 ·
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2

How Does Projectile Motion Determine Final Velocity?

  • k2var2002
  • · Replies 12 ·
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12

Trajectory of a Baseball: Will it Clear the Fence?

  • RoganSarine
  • · Replies 2 ·
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2

Solving Pulley & Block Problems: Acceleration of A

  • chenying
  • · Replies 1 ·
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1

Calculating Tension in Cable Winch BD - Drawing Included

  • pigmy02
  • · Replies 1 ·
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1

Find electric field of a spherical shell

  • unteng10
  • · Replies 4 ·
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4

Particle around pivot in uniform E

  • TwoTruths
  • · Replies 2 ·
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2

What are the forces acting on the crate on a frictionless ramp?

  • tjbateh
  • · Replies 8 ·
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8

What causes a change in wind direction when it hits a sail?

  • WishFish
  • · Replies 4 ·
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4

Why lift curves go through origin for some airfoils

  • heinekenisnic
  • · Replies 1 ·
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1

How Do You Calculate the Tension in a Chandelier's Cable?

  • gb14
  • · Replies 1 ·
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1

How Do I Solve This Complex Square Root Equation?

  • snoothie
  • · Replies 2 ·
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2

Net Charge of Spherical Shell +Q at Center

  • tag16
  • · Replies 11 ·
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11

Finding min/max force (net force sliding friction problem)

  • ultimateman
  • · Replies 3 ·
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3

Maximize Reaction Time to Avoid Deer: Motorist's Dilemma Explained

  • malta
  • · Replies 1 ·
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1

Basic Motion Graphs (velocity-time)

  • PolyFX
  • · Replies 1 ·
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1

How to measure circular displacement?

  • TwoTruths
  • · Replies 3 ·
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3

What causes a 'simple pendulum' to stop?

  • student321
  • · Replies 26 ·
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26

Initial upward acceleration in a pulley problem

  • NinjaPenguin
  • · Replies 2 ·
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2

How Can Angular Momentum Principles Solve Disk Rotation Problems?

  • tanglx61
  • · Replies 1 ·
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1

What is the role of A+B+C in finding vector components?

  • White_Noise
  • · Replies 2 ·
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2

My first week in hs physics and my teacher hasn't taught a thing

  • natabong
  • · Replies 4 ·
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4

Solving a 4 kg Particle's Velocity & Force

  • tjbateh
  • · Replies 8 ·
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8

Calculating Drop Timing for Airdrop Supplies in Wilderness

  • physicsquest
  • · Replies 2 ·
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2

Ranking the force of point charges problem

  • macaco
  • · Replies 5 ·
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5

Projectile Motion marble Problem

  • LoveandHate
  • · Replies 4 ·
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4

The Energy Contained in a FunyunI must be mistaken?

  • Rhine720
  • · Replies 4 ·
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4

How Do You Derive the Equations of Motion in Physics?

  • kevinli
  • · Replies 2 ·
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2

What is the magnitude of the electric field between the two plates?

  • tag16
  • · Replies 4 ·
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4

Finding Speed and Angle of Projectile Trajectory

  • darklich21
  • · Replies 2 ·
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2

How Can You Calculate the Total Equivalent Resistance in a Circuit?

  • HEYJOHN
  • · Replies 1 ·
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1

The Heating of Nichrome Wire in a toaster

  • gc33550
  • · Replies 6 ·
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6

Force & Motion Homework: How to Calculate Force from Restricted Motion

  • tjbateh
  • · Replies 2 ·
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2

Intitial velocity from given angle and distance

  • morganm725
  • · Replies 2 ·
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2

Apparent weight/elevator problem

  • stressedout09
  • · Replies 3 ·
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3

Solve for Equation of Motion in Tricky Mechanics Homework

  • JohnSimpson
  • · Replies 2 ·
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2

Physics Lab question velocity/Δt simple

  • munchy35
  • · Replies 2 ·
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2

Rocket Velocity Calculation for Different Time Intervals

  • elpermic
  • · Replies 7 ·
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7

Angular Acceleration - What am I doing wrong?

  • ctamasi
  • · Replies 2 ·
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2

Raindrop Terminal Velocity: Why Do Larger Drops Fall Faster?

  • tommyjohn
  • · Replies 9 ·
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9

What is the magnitude of the body's acceleration?

  • sponsoredwalk
  • · Replies 3 ·
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3

Which of the points is closer to the plane - is this right?

  • Damascus Road
  • · Replies 1 ·
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1

How Far North Does Carlos Travel in 10 Minutes?

  • gbedenba
  • · Replies 11 ·
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11

What is the Equilibrium Temperature When Brass Meets Water?

  • Damien20
  • · Replies 1 ·
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1
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1

Finding mass in a quanity of heat problem

  • Damien20
  • · Replies 1 ·
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1

Distance covered by a moving object versus friction in an inclined plane

  • ffrancis
  • · Replies 1 ·
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1

Calculate the polarizability a(lpha) of atomic hydrogen in terms of R

  • cfung
  • · Replies 1 ·
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1

Help with Force & Motion Test Questions

  • flav12
  • · Replies 1 ·
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1

Brick Falling Off a Rising Pallet

  • alandry06
  • · Replies 7 ·
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7

Simple Harmonic Motion: Finding Frequency and Potential Energy Function

  • briteliner
  • · Replies 8 ·
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8

Finding the Position of a Sample Using Microscope Magnification

  • estanton
  • · Replies 2 ·
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2

Kinematics - Constant Acceleration

  • JG89
  • · Replies 10 ·
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10

How Is Collision Speed Calculated in a Supermarket Parking Lot Incident?

  • melmel7880
  • · Replies 1 ·
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1

I really can't understand uncertainty

  • Shing
  • · Replies 1 ·
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1

Defining Charge - Physics Pop Quiz

  • Surreal Ike
  • · Replies 9 ·
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9

Confusing projectile motion problem?

  • bronxbomber91
  • · Replies 1 ·
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1

Calculating Horizontal Speed of a Stealth Bomber

  • jamesc3
  • · Replies 1 ·
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1

What is the height of the smaller model in this statue scaling problem?

  • Payne0511
  • · Replies 1 ·
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1

Kinematics- Child running down a hill

  • panozg
  • · Replies 1 ·
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1

Coulomb's Law lab , , it do tommorrow

  • Suy
  • · Replies 16 ·
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16

Projectile Motion: Determining Maximum Height and Velocity

  • Lemniscate
  • · Replies 8 ·
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8

Laws of Motion w/ Friction - Two Forces on Two Boxes

  • Refrost
  • · Replies 1 ·
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1

Solving for x-Displacement of a Rolling Ball on an Inclined Track

  • goodz
  • · Replies 6 ·
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6

Formula for a two-part constant-acceleration problem

  • neutron star
  • · Replies 6 ·
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6

Define Newton's 1st, 2nd, and 3rd laws

  • Tale
  • · Replies 3 ·
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3

What is the optimal angle for maximum range in projectile motion?

  • Sesner09
  • · Replies 5 ·
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5

Force acting on object of given coordinates

  • Simply Is
  • · Replies 1 ·
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1

Lowest frequency that produces an interference maximum

  • L1988
  • · Replies 2 ·
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2

Romeo's Pebbles - A Zero Horizontal Acceleration Problem

  • EcKoh
  • · Replies 4 ·
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4

Bracket/block static friction problem (physics)

  • notbynumber
  • · Replies 1 ·
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1

Solve Tension and Angles Homework: Find Smallest \theta

  • Payne0511
  • · Replies 1 ·
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1