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Undergrad Inertial and gravitational mass

Jun 24, 2003 · Replies 12 · Jul 6, 2003

Replies: 12

Views: 5K

Graduate Where Can I Find Heisenberg's Original Paper on Matrix Mechanics?

Jul 6, 2003 · Replies 1 · Jul 6, 2003

Replies: 1

Views: 5K

Undergrad Centirpetal And Centrifugal Forces

Jun 25, 2003 · Replies 8 · Jul 4, 2003

Replies: 8

Views: 5K

Undergrad Vectors & Scalars: Understanding Directional Properties

Jun 21, 2003 · Replies 61 · Jul 2, 2003

3

Replies: 61

Views: 13K

Undergrad A 2.0 kg mass is attached to one end of a spring

Jun 30, 2003 · Replies 3 · Jul 1, 2003

Replies: 3

Views: 6K

Graduate Fourier Analysis of Angular Momentum Operator

Jun 29, 2003 · Replies 6 · Jun 30, 2003

Replies: 6

Views: 5K

Undergrad Swim at 100m/sec: Russian Torpedos Underwater

Jun 30, 2003 · Replies 1 · Jun 30, 2003

Replies: 1

Views: 3K

Undergrad Spin Tops: Why Do They React 90° Later?

Jun 29, 2003 · Replies 3 · Jun 30, 2003

Replies: 3

Views: 4K

Undergrad Rolling Disk Inertia: Comparing Friction and Slip on Inclines

Jun 29, 2003 · Replies 1 · Jun 29, 2003

Replies: 1

Views: 5K

High School Sound waves and gravity question

Jun 27, 2003 · Replies 8 · Jun 29, 2003

Replies: 8

Views: 15K

Graduate The rotations, SO(3), in Loop Quantum Gravity

Jun 10, 2003 · Replies 26 · Jun 28, 2003

Replies: 26

Views: 5K

Graduate Error of Descartes: Space w/out Matter - Arguments & Concept

Jun 28, 2003 · Replies 5 · Jun 28, 2003

Replies: 5

Views: 3K

Undergrad Solving Acceleration Problems: Tension, Lift Force, and Pulley Systems Explained

Jun 27, 2003 · Replies 2 · Jun 28, 2003

Replies: 2

Views: 8K

Undergrad What Are the Key Principles of Celestial Mechanics?

Jun 28, 2003 · Replies 2 · Jun 28, 2003

Replies: 2

Views: 3K

Undergrad Calculate Rotational Velocity of Object Around Fixed Point

Jun 26, 2003 · Replies 1 · Jun 26, 2003

Replies: 1

Views: 11K

Undergrad Speed & Force in Toy Car on Frictionless Ramp

Jun 22, 2003 · Replies 4 · Jun 25, 2003

Replies: 4

Views: 3K

Graduate Is Water Flow from a Barrel an Example of Exponential Decay?

Jun 24, 2003 · Replies 6 · Jun 25, 2003

Replies: 6

Views: 4K

Undergrad Introducing Classical Mechanics for Beginners

Jun 23, 2003 · Replies 4 · Jun 24, 2003

Replies: 4

Views: 6K

Graduate Inertial mass of a stressed body

Jun 9, 2003 · Replies 11 · Jun 24, 2003

Replies: 11

Views: 4K

Undergrad Is there any point on setting an incline on a treadmill?

Jun 21, 2003 · Replies 5 · Jun 22, 2003

Replies: 5

Views: 9K

Graduate Calculating Gravity Force with Energy of a System - Tips and Insights

Jun 21, 2003 · Replies 2 · Jun 21, 2003

Replies: 2

Views: 3K

Graduate Spin networks in Loop Quantum Gravity

Jun 15, 2003 · Replies 29 · Jun 21, 2003

Replies: 29

Views: 7K

High School What causes the snapping sound when a towel is snapped?

Jun 7, 2003 · Replies 5 · Jun 21, 2003

Replies: 5

Views: 9K

Undergrad Do larger wheels travel faster than smaller wheels?

Jun 16, 2003 · Replies 9 · Jun 19, 2003

Replies: 9

Views: 65K

High School A question regarding Potential Energy

Jun 18, 2003 · Replies 8 · Jun 19, 2003

Replies: 8

Views: 4K

High School How can I calculate the maximum height reached by a model rocket?

Jun 16, 2003 · Replies 3 · Jun 18, 2003

Replies: 3

Views: 11K

Undergrad Can a NASA Senior Physicist Agree with a Junior Physicist's Calculation?

Jun 18, 2003 · Replies 2 · Jun 18, 2003

Replies: 2

Views: 3K

High School Is Sound Energy or a Force?

Jun 18, 2003 · Replies 5 · Jun 18, 2003

Replies: 5

Views: 5K

High School Friction coefficient waterslide

Jun 17, 2003 · Replies 6 · Jun 18, 2003

Replies: 6

Views: 8K

Undergrad Can You Determine Velocity from a Still Image?

Jun 16, 2003 · Replies 3 · Jun 17, 2003

Replies: 3

Views: 3K

High School How does inertia prevent soldiers from falling out of a turning helicopter?

Jun 14, 2003 · Replies 6 · Jun 17, 2003

Replies: 6

Views: 7K

Graduate Centripetal Force, the planets

Jun 16, 2003 · Replies 3 · Jun 16, 2003

Replies: 3

Views: 8K

Undergrad Wave Physics: Understanding Harmonics for Communication Technology

May 26, 2003 · Replies 12 · Jun 16, 2003

Replies: 12

Views: 5K

Graduate Can Newton's Laws Be Quantized for Modern Physics?

Jun 13, 2003 · Replies 2 · Jun 15, 2003

Replies: 2

Views: 4K

Undergrad Hang vertically downward are connected by a pulley

Jun 13, 2003 · Replies 3 · Jun 14, 2003

Replies: 3

Views: 3K

Graduate Motion in the Universe: The Holographic Universe and the Absence of Empty Space

Mar 22, 2003 · Replies 5 · Jun 11, 2003

Replies: 5

Views: 3K

Undergrad Working on a large battery system

May 31, 2003 · Replies 6 · Jun 10, 2003

Replies: 6

Views: 3K

Undergrad Debunking the Myth: Energy Consumption of Objects in a Vacuum

Jun 3, 2003 · Replies 16 · Jun 7, 2003

Replies: 16

Views: 4K

Undergrad Contradiction in Force*Time Applications: Where Am I Wrong?

Jun 6, 2003 · Replies 5 · Jun 7, 2003

Replies: 5

Views: 4K

Undergrad Why is there a discrepancy between rocket velocity calculations in orbit?

May 31, 2003 · Replies 1 · May 31, 2003

Replies: 1

Views: 3K

High School How do high school students build and fly lifters using high voltage capacitors?

May 27, 2003 · Replies 12 · May 30, 2003

Replies: 12

Views: 4K

Undergrad Hitting Water at Terminal Velocity

May 28, 2003 · Replies 9 · May 29, 2003

Replies: 9

Views: 37K

High School Speed vs Velocity: Understanding the Difference

May 22, 2003 · Replies 15 · May 27, 2003

Replies: 15

Views: 4K

High School Can a baseball pitcher throw a true riser?

May 25, 2003 · Replies 8 · May 27, 2003

Replies: 8

Views: 15K

Graduate The G force is not infinity at distance zero(in free fall)

Apr 27, 2003 · Replies 7 · May 27, 2003

Replies: 7

Views: 4K

High School What Are the Key Physics Concepts Behind Paintball?

May 25, 2003 · Replies 6 · May 25, 2003

Replies: 6

Views: 9K

Undergrad Rotational Dynamics/Angular Momentum

May 22, 2003 · Replies 12 · May 24, 2003

Replies: 12

Views: 7K

Undergrad Find the initial launching velocity of the projectile.

May 23, 2003 · Replies 5 · May 24, 2003

Replies: 5

Views: 5K

Graduate Tire & Log Impact: Critical Damage Simulation | Earth Desert Climate

May 22, 2003 · Replies 5 · May 23, 2003

Replies: 5

Views: 3K

The Speed of Time: Unfathomable Mystery

May 1, 2003 · Replies 62 · May 23, 2003

3

Replies: 62

Views: 10K

Undergrad Solve Train Speed from Frequency: 440Hz & 410Hz

May 22, 2003 · Replies 2 · May 23, 2003

Replies: 2

Views: 8K

High School Understanding Water Displacement: How Much Water Do I Need to Float at 160 lbs?

May 22, 2003 · Replies 11 · May 23, 2003

Replies: 11

Views: 4K

Graduate Acceleration of expanding space

May 20, 2003 · Replies 4 · May 23, 2003

Replies: 4

Views: 3K

Undergrad Projectiles, spin, momentum, and range

May 22, 2003 · Replies 6 · May 22, 2003

Replies: 6

Views: 6K

Graduate Relativistic Circular Motion: Lorentz Boosting Among Accelerating Frames

Apr 7, 2003 · Replies 9 · May 21, 2003

Replies: 9

Views: 9K

High School How far away is the farmer? Speed of sound and wave vibration in physics

May 20, 2003 · Replies 8 · May 20, 2003

Replies: 8

Views: 5K

High School A Fly's "Mysterious" Ride on the Bus

May 14, 2003 · Replies 12 · May 17, 2003

Replies: 12

Views: 3K

Graduate How does the Casimir force work?

May 14, 2003 · Replies 8 · May 16, 2003

Replies: 8

Views: 5K

High School Are there any good books on elastics for a beginner?

May 15, 2003 · Replies 4 · May 16, 2003

Replies: 4

Views: 4K

Undergrad The physics of human motion (re. a sword swing)

May 13, 2003 · Replies 1 · May 15, 2003

Replies: 1

Views: 11K

Undergrad Friction: Little Hills & Valleys vs Better Theory

May 13, 2003 · Replies 2 · May 14, 2003

Replies: 2

Views: 2K

Graduate Understanding Expressions like SU(2), O(3) and E(8)

May 11, 2003 · Replies 8 · May 13, 2003

Replies: 8

Views: 3K

Graduate Bernoulli's Law and Aerodynamic Lift

May 6, 2003 · Replies 16 · May 10, 2003

Replies: 16

Views: 13K

Undergrad Vector Products (this relates to an earlier question I had)

May 8, 2003 · Replies 5 · May 9, 2003

Replies: 5

Views: 3K

Graduate Interesting Quantum Mechanics Problem

May 8, 2003 · Replies 2 · May 8, 2003

Replies: 2

Views: 3K

High School Inertia humming bird is hovering in a car

May 5, 2003 · Replies 9 · May 8, 2003

Replies: 9

Views: 4K

High School How realistic is the physics behind the motorcycle jump in Tomorrow Never Dies?

May 6, 2003 · Replies 4 · May 7, 2003

Replies: 4

Views: 3K

Undergrad Simple harmonic motion dash in equation

May 4, 2003 · Replies 6 · May 5, 2003

Replies: 6

Views: 4K

Graduate NMR Pulse Principles: Exciting Protons & Lifetime Boarding

May 3, 2003 · Replies 8 · May 4, 2003

Replies: 8

Views: 13K

Graduate Carbon tubes suffused with buckyfoam

Apr 28, 2003 · Replies 8 · May 3, 2003

Replies: 8

Views: 3K

High School What does the g stand for when computing moment of inertia

May 2, 2003 · Replies 3 · May 2, 2003

Replies: 3

Views: 3K

How Is a Rock on My Desk Moving?

Apr 28, 2003 · Replies 13 · May 2, 2003

Replies: 13

Views: 3K

High School Are These Projectile Formulas Effective for Calculating Object Trajectories?

Apr 28, 2003 · Replies 4 · May 2, 2003

Replies: 4

Views: 12K

Undergrad Modeling the acceleration of a car

May 1, 2003 · Replies 1 · May 1, 2003

Replies: 1

Views: 3K

Graduate Calculating Moment of Inertia for Sierpinski Triangle - Tips and Tricks

May 1, 2003 · Replies 4 · May 1, 2003

Replies: 4

Views: 7K

Undergrad Is Water a Dipole and How Does It Affect Molecular Behavior?

Apr 24, 2003 · Replies 9 · Apr 30, 2003

Replies: 9

Views: 4K

High School I have a question on forces anyone help me

Apr 27, 2003 · Replies 3 · Apr 29, 2003

Replies: 3

Views: 3K

Graduate Possibility of a Min. Speed Limit in the Universe

Apr 10, 2003 · Replies 26 · Apr 28, 2003

Replies: 26

Views: 7K

Undergrad What is the derivation and impact of Brenouille's equation?

Apr 18, 2003 · Replies 2 · Apr 27, 2003

Replies: 2

Views: 3K

High School Angular Momentum points in WHAT direction?

Apr 23, 2003 · Replies 4 · Apr 23, 2003

Replies: 4

Views: 23K

Graduate Is 'Scale' the Key to Unifying Quantum Mechanics and Classical Physics?

Apr 11, 2003 · Replies 11 · Apr 23, 2003

Replies: 11

Views: 4K

Undergrad Freefall and Acceleration: A Discussion

Apr 14, 2003 · Replies 56 · Apr 21, 2003

2

Replies: 56

Views: 12K

Graduate Newton 1st same as energy being conserved

Apr 4, 2003 · Replies 14 · Apr 21, 2003

Replies: 14

Views: 3K

Undergrad What is the force causing circular motion to move upwards?

Apr 20, 2003 · Replies 1 · Apr 20, 2003

Replies: 1

Views: 3K

Graduate Understanding the Rayleigh Dissipative Function in Classical Mechanics

Apr 18, 2003 · Replies 2 · Apr 20, 2003

Replies: 2

Views: 10K

Graduate How Do You Calculate the Launch Power to Hit a Moving Target?

Apr 19, 2003 · Replies 1 · Apr 19, 2003

Replies: 1

Views: 4K

High School Generator Principles and Equations Explained

Apr 16, 2003 · Replies 15 · Apr 19, 2003

Replies: 15

Views: 6K

Graduate Escape Velocity of virtual particles

Apr 6, 2003 · Replies 29 · Apr 18, 2003

Replies: 29

Views: 5K

Undergrad Effect of Stopping Earth's Rotation on Gravity/Orbit

Apr 17, 2003 · Replies 2 · Apr 17, 2003

Replies: 2

Views: 3K

Undergrad Merry go round with a moment of inertia

Apr 15, 2003 · Replies 1 · Apr 17, 2003

Replies: 1

Views: 5K

Undergrad Is Angular Momentum really conserved

Apr 15, 2003 · Replies 9 · Apr 17, 2003

Replies: 9

Views: 17K

Undergrad Understanding Spin Stabilization in the M16 Rifle

Apr 14, 2003 · Replies 6 · Apr 15, 2003

Replies: 6

Views: 5K

High School Baseball Distance Debate: Hot Air vs Cold Air [SOLVED]

Apr 10, 2003 · Replies 14 · Apr 15, 2003

Replies: 14

Views: 4K

High School Where Does Gravity Have the Most Impact?

Mar 22, 2003 · Replies 31 · Apr 15, 2003

2

Replies: 31

Views: 17K

High School Question: What is the acceleration of a body moving with constant acceleration?

Apr 11, 2003 · Replies 2 · Apr 14, 2003

Replies: 2

Views: 4K

Graduate Is Velocity Always Constant in Physics?

Apr 4, 2003 · Replies 34 · Apr 13, 2003

2

Replies: 34

Views: 8K

High School Elastic Collisions and conservation of momentum

Apr 12, 2003 · Replies 4 · Apr 12, 2003

Replies: 4

Views: 7K

High School Tell Me About Kinetic Energy, Please

Apr 9, 2003 · Replies 8 · Apr 12, 2003

Replies: 8

Views: 6K

High School A Question about Object Motions [With thanks in advance]

Apr 9, 2003 · Replies 4 · Apr 12, 2003

Replies: 4

Views: 3K

Graduate How do we get the x-representation of the momentum operator?

Apr 4, 2003 · Replies 19 · Apr 11, 2003

Replies: 19

Views: 8K

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