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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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How Does Momentum Affect the Velocity of a Caught Ball?

devilz_krypt
Nov 28, 2008 · Replies 4 · Nov 28, 2008

Replies: 4

I still need someone smart to explain 2 me momentum and Impulse throughly .

devilz_krypt
Nov 28, 2008 · Replies 3 · Nov 28, 2008

Replies: 3

Can You Hit a Feather With 200N in a Frictionless Environment?

bismark
Nov 25, 2008 · Replies 8 · Nov 28, 2008

Replies: 8

Calculating Final Momentum in Inelastic Space Rock Collision

lebprince
Nov 28, 2008 · Replies 10 · Nov 28, 2008

Replies: 10

Finding the Optimal Location for a Water Pump in a Deep Mine

birdhen
Nov 28, 2008 · Replies 1 · Nov 28, 2008

Replies: 1

Calculating Power Dissipated by a Battery

bensthebest
Nov 27, 2008 · Replies 8 · Nov 28, 2008

Replies: 8

Conservation of Energy question

brittkub1291
Nov 27, 2008 · Replies 6 · Nov 28, 2008

Replies: 6

Radicals-getting a rational denominator

liz777
Nov 28, 2008 · Replies 2 · Nov 28, 2008

Replies: 2

What is the Vertical Acceleration of a Falling Tennis Ball?

ahrog
Nov 27, 2008 · Replies 2 · Nov 28, 2008

Replies: 2

Find Ice Melted & Final Temp w/ 10g Steam & 50g Ice

Jennifer001
Nov 27, 2008 · Replies 5 · Nov 28, 2008

Replies: 5

Electric potential of a plastic rod

noppawit
Nov 28, 2008 · Replies 3 · Nov 28, 2008

Replies: 3

Angular velocity and acceleration

synergix
Nov 26, 2008 · Replies 11 · Nov 28, 2008

Replies: 11

Maximum Height of Small Ball in Spinning Hollow Ball: Formula and Conditions

devanlevin
Nov 27, 2008 · Replies 8 · Nov 28, 2008

Replies: 8

How Much Water Flow Is Needed to Generate 780 kW from a 27m Dam?

evenstar
Nov 27, 2008 · Replies 1 · Nov 28, 2008

Replies: 1

Moving Train Problem: Help & Advice Needed

jackiemoon
Nov 26, 2008 · Replies 4 · Nov 28, 2008

Replies: 4

Airplane Wing Pressure and Net Force Calculation

iseidthat
Nov 27, 2008 · Replies 8 · Nov 28, 2008

Replies: 8

Simplifying Radicals with varibles?

liz777
Nov 27, 2008 · Replies 4 · Nov 28, 2008

Replies: 4

Solve Dynamics Question: v=6-0.3s, a=dv/dt, t=100s

Melawrghk
Nov 27, 2008 · Replies 5 · Nov 27, 2008

Replies: 5

Consider a Hydrogen atom in the ground state

jcvince17
Nov 25, 2008 · Replies 9 · Nov 27, 2008

Replies: 9

Current and Voltage Relationships

perjogab
Nov 26, 2008 · Replies 2 · Nov 27, 2008

Replies: 2

Need Help with Momentum and Impulse? Need some one smart

devilz_krypt
Nov 27, 2008 · Replies 1 · Nov 27, 2008

Replies: 1

Which Object Exhibits More Momentum?

devilz_krypt
Nov 27, 2008 · Replies 1 · Nov 27, 2008

Replies: 1

Magnetism between two electrical wires

dimpledur
Nov 27, 2008 · Replies 3 · Nov 27, 2008

Replies: 3

Thermodyanmics, specific heat capacity

Jennifer001
Nov 27, 2008 · Replies 1 · Nov 27, 2008

Replies: 1

Need Help with Momentum and Impulse? Need some one smart

devilz_krypt
Nov 27, 2008 · Replies 1 · Nov 27, 2008

Replies: 1

Online Physics HW~Elastic Collision

greenpak07
Nov 27, 2008 · Replies 2 · Nov 27, 2008

Replies: 2

Kinetic energy of bow and arrow

iFat
Nov 27, 2008 · Replies 4 · Nov 27, 2008

Replies: 4

Alpha Particle-Gold Nucleus Collision: Solving for Initial and Final Momentum

lebprince
Nov 27, 2008 · Replies 2 · Nov 27, 2008

Replies: 2

Circular Motion of Pendulums: A Visual Demonstration

devanlevin
Nov 27, 2008 · Replies 1 · Nov 27, 2008

Replies: 1

Mass attenuation coeffcient relation to kinetic energy

shonen
Nov 26, 2008 · Replies 1 · Nov 27, 2008

Replies: 1

How Do You Determine if Two Values Agree?

GrahamCU
Nov 27, 2008 · Replies 1 · Nov 27, 2008

Replies: 1

YoYo rolling on ground (checking work mostly)

phil ess
Nov 27, 2008 · Replies 3 · Nov 27, 2008

Replies: 3

Breaking Filaments using magnets.

TFM
Nov 25, 2008 · Replies 12 · Nov 27, 2008

Replies: 12

How Do You Calculate the Resistance of the Ground in a Physics Problem?

Inertialforce
Nov 24, 2008 · Replies 3 · Nov 27, 2008

Replies: 3

Calculating Time for Simple Harmonic Motion - \pi

rhodium
Nov 26, 2008 · Replies 1 · Nov 27, 2008

Replies: 1

How Does Friction Impact Acceleration on an Inclined Plane?

devanlevin
Nov 26, 2008 · Replies 3 · Nov 27, 2008

Replies: 3

What Is the Initial Speed of the Bullet in a Bullet-Block Collision Problem?

Nyasha
Nov 26, 2008 · Replies 1 · Nov 27, 2008

Replies: 1

Calculating Eccentricity of Planet's Orbit After Star Explosion

thesaruman
Nov 26, 2008 · Replies 2 · Nov 27, 2008

Replies: 2

HELP A rolling without slipping problem

Kudo Shinichi
Nov 26, 2008 · Replies 21 · Nov 27, 2008

Replies: 21

Why Is the Speed of Light Ignored When Calculating the Distance of Lightning?

jimen113
Nov 26, 2008 · Replies 5 · Nov 27, 2008

Replies: 5

Projectile Motion: Diver's Leap from a Tower with Vector Components

ahrog
Nov 25, 2008 · Replies 3 · Nov 27, 2008

Replies: 3

Calculating Fill Time for Inflatable Pool Using Garden Hose

iseidthat
Nov 27, 2008 · Replies 5 · Nov 27, 2008

Replies: 5

Calculating Acceleration of Rising Balloon

iseidthat
Nov 27, 2008 · Replies 1 · Nov 27, 2008

Replies: 1

Is it Possible to Transfer All Momentum in Billiards?

kidprince777
Nov 26, 2008 · Replies 4 · Nov 26, 2008

Replies: 4

Understanding Faraday's Law: Solving for Induced EMF in a Uniform Magnetic Field

lvlastermind
Nov 26, 2008 · Replies 1 · Nov 26, 2008

Replies: 1

Solve Statics Problem: Max Mass to Avoid Slippage

Kudo Shinichi
Nov 25, 2008 · Replies 3 · Nov 26, 2008

Replies: 3

Solving for the normal force (Physics assignment)

Greywolfe1982
Nov 26, 2008 · Replies 11 · Nov 26, 2008

Replies: 11

Conservation of Energy of a bear question

brittkub1291
Nov 26, 2008 · Replies 4 · Nov 26, 2008

Replies: 4

Calculating Friction Force in Sliding Block Problem

aburich_44
Nov 26, 2008 · Replies 4 · Nov 26, 2008

Replies: 4

Collision of a block with a spring

mjolnir80
Nov 26, 2008 · Replies 2 · Nov 26, 2008

Replies: 2

Calculating Angular Velocity: Puck in Circular Motion

zoner7
Nov 20, 2008 · Replies 5 · Nov 26, 2008

Replies: 5

What is the boiling point of water on the Z scale?

Shayna
Nov 26, 2008 · Replies 3 · Nov 26, 2008

Replies: 3

What is the acceleration of each mass in a pulley system with two masses?

devanlevin
Nov 26, 2008 · Replies 5 · Nov 26, 2008

Replies: 5

Angular Acceleration (I don't see HOW I can be wrong?)

Lucretius
Nov 25, 2008 · Replies 3 · Nov 26, 2008

Replies: 3

Acceleration of block down an incline

aliaze1
Nov 26, 2008 · Replies 1 · Nov 26, 2008

Replies: 1

Billiard collision with same angle

madman143
Nov 26, 2008 · Replies 2 · Nov 26, 2008

Replies: 2

Fluid Mechanics- Two liquids in a U-Bend

ultrapowerpie
Nov 26, 2008 · Replies 4 · Nov 26, 2008

Replies: 4

Circular Motion & Universal Gravitation: Gravity Between

cocobandit13
Nov 25, 2008 · Replies 1 · Nov 26, 2008

Replies: 1

What is the minimum frequency needed to spin a bucket without spilling water?

devanlevin
Nov 25, 2008 · Replies 5 · Nov 26, 2008

Replies: 5

Conservation of momentum ; spring ; friction

jumpman11372
Nov 25, 2008 · Replies 2 · Nov 26, 2008

Replies: 2

Calculating Angle Between Plumb Line & Radius Vector Over North Pole

thesaruman
Nov 24, 2008 · Replies 2 · Nov 26, 2008

Replies: 2

Task with ball, cyllinder and inclined plane - problem -help

Pawell
Nov 26, 2008 · Replies 1 · Nov 26, 2008

Replies: 1

Inverted Pendulum: Relating Force to Angle/Displacement

paton51
Nov 26, 2008 · Replies 1 · Nov 26, 2008

Replies: 1

Is This High School Physics Exam Question Fair?

noodlesofrome
Nov 26, 2008 · Replies 4 · Nov 26, 2008

Replies: 4

Calculating Fgrav at a non-point mass

diminion
Nov 26, 2008 · Replies 2 · Nov 26, 2008

Replies: 2

Skier Work and Power Calculation

brittkub1291
Nov 20, 2008 · Replies 10 · Nov 26, 2008

Replies: 10

Finding Inductance and Internal Resistance in a Series LCR Circuit

physicsroy
Nov 26, 2008 · Replies 1 · Nov 26, 2008

Replies: 1

Total Kinetic Energy: Man, Globe, Platform

spirited
Nov 25, 2008 · Replies 1 · Nov 26, 2008

Replies: 1

Oscillator Max Speed - Calculate Vmax

sktgurl930
Nov 25, 2008 · Replies 4 · Nov 26, 2008

Replies: 4

How to Calculate Heat Flow in a Copper and Aluminum Rod Pairing?

rogerthat4
Nov 24, 2008 · Replies 7 · Nov 26, 2008

Replies: 7

Why is Mass Special? Understanding Force, Momentum, Energy, Work & Power

CaptainADHD
Nov 24, 2008 · Replies 7 · Nov 26, 2008

Replies: 7

Understanding Gravitational Time Dilation in Classical Mechanics

sirius0
Aug 14, 2008 · Replies 7 · Nov 26, 2008

Replies: 7

Conservation of Angular Momentum

veronicak5678
Nov 24, 2008 · Replies 6 · Nov 25, 2008

Replies: 6

What Is the Momentum of a Falling Bale of Hay Just Before Impact?

itsmarasilly
Nov 25, 2008 · Replies 1 · Nov 25, 2008

Replies: 1

How Does Torque Affect the Acceleration of a Stick's Tip?

saltine
Nov 21, 2008 · Replies 31 · Nov 25, 2008

2

Replies: 31

Calculating Moment of Inertia and Frictional Torque | Physics Homework Help

spirited
Nov 25, 2008 · Replies 1 · Nov 25, 2008

Replies: 1

Am i going about this angular acceleration question the right way?

livblue23
Nov 25, 2008 · Replies 1 · Nov 25, 2008

Replies: 1

Ratio of Momentum for Homework Problems

hansel13
Nov 23, 2008 · Replies 15 · Nov 25, 2008

Replies: 15

Angular Acceleration of a grinding wheel

spirited
Nov 25, 2008 · Replies 2 · Nov 25, 2008

Replies: 2

Another Friction Equilibrium Problem

Oblivion77
Nov 25, 2008 · Replies 3 · Nov 25, 2008

Replies: 3

Calculating Volume & Buoyant Force: A Spring Scale Experiment

GreenEyedGal3
Nov 25, 2008 · Replies 4 · Nov 25, 2008

Replies: 4

Finding temperature using sound waves

Bubba sean
Nov 25, 2008 · Replies 1 · Nov 25, 2008

Replies: 1

Imple physics question dealing with conseration of energy

davidelete
Nov 24, 2008 · Replies 8 · Nov 25, 2008

Replies: 8

Conservation of Energy child's toy

chrispat
Nov 24, 2008 · Replies 2 · Nov 25, 2008

Replies: 2

How Do You Calculate Charge and Current Over Time in a Defibrillator Circuit?

_mae
Nov 24, 2008 · Replies 1 · Nov 25, 2008

Replies: 1

Calculating Time Interval for a Perfectly Elastic Collision in Curling Match

ElementUser
Nov 24, 2008 · Replies 2 · Nov 25, 2008

Replies: 2

Calculating Speed of Mass Given Constant Power & Force

Fluent
Nov 24, 2008 · Replies 6 · Nov 25, 2008

Replies: 6

Bernoulli's equation application

moeraeleizhaj
Nov 23, 2008 · Replies 10 · Nov 25, 2008

Replies: 10

Pressure Difference on an airplane wing

littowadey
Nov 25, 2008 · Replies 1 · Nov 25, 2008

Replies: 1

Estimating Time to Record Faint Star on Telescopes

joker_900
Nov 25, 2008 · Replies 3 · Nov 25, 2008

Replies: 3

How Does Binary Star Mass Calculation Using Kepler's Law Work?

lindz.12
Nov 24, 2008 · Replies 4 · Nov 25, 2008

Replies: 4

Resultant Vectors with angles and magnitude

Loppyfoot
Nov 25, 2008 · Replies 3 · Nov 25, 2008

Replies: 3

Newton's second law net force = mass

alpha372
Nov 25, 2008 · Replies 1 · Nov 25, 2008

Replies: 1

How Do You Calculate Velocity in Relativity Without a Calculator?

edd0107
Nov 25, 2008 · Replies 4 · Nov 25, 2008

Replies: 4

Calculating Weight of Load Using Lever Force - 65 Characters

NateTheGreat
Nov 25, 2008 · Replies 1 · Nov 25, 2008

Replies: 1

Pendulum System: Acceleration of M1 and M2 Weights & Course of Movement

devanlevin
Nov 24, 2008 · Replies 2 · Nov 25, 2008

Replies: 2

Solve Physics Problem: Block Moving Up a Vertical Track

KD-jay
Nov 25, 2008 · Replies 1 · Nov 25, 2008

Replies: 1

What is the Coefficient of Static Friction in a Torque Problem?

veronicak5678
Nov 24, 2008 · Replies 16 · Nov 25, 2008

Replies: 16

Current vs. Time: Mathematical Expression for Hippolyte Pixii's Dynamo

f77126
Nov 25, 2008 · Replies 1 · Nov 25, 2008

Replies: 1

Composite Bar Length Calculation

eduardalcazar
Nov 25, 2008 · Replies 3 · Nov 25, 2008

Replies: 3

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