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Undergrad Lower Force Impact on Child Safety with American Inventor Car Seat

May 17, 2006 · Replies 17 · May 18, 2006

Replies: 17

Views: 4K

Graduate Could Vehicle A's higher acceleration have caused the crash at a 4-way stop?

May 11, 2006 · Replies 11 · May 17, 2006

Replies: 11

Views: 6K

High School Riding a Bicycle Easier Than Walking: Explained

May 16, 2006 · Replies 3 · May 17, 2006

Replies: 3

Views: 3K

High School Optimizing Bowling Ball Speed: Comparing 15 lbs and 16 lbs Balls

May 12, 2006 · Replies 8 · May 16, 2006

Replies: 8

Views: 4K

High School Can a Baseball Reach Escape Velocity?

May 12, 2006 · Replies 11 · May 15, 2006

Replies: 11

Views: 7K

Undergrad Sonic the hedgehog physics o_<

May 13, 2006 · Replies 5 · May 15, 2006

Replies: 5

Views: 5K

High School A question about water and freezing

May 8, 2006 · Replies 19 · May 15, 2006

Replies: 19

Views: 9K

Undergrad Force, Energy, and a Rolling ball

Apr 17, 2006 · Replies 17 · May 14, 2006

Replies: 17

Views: 8K

Undergrad The Generation of Voltage in a Transformer

Nov 21, 2003 · Replies 37 · May 13, 2006

2

Replies: 37

Views: 20K

Undergrad Is my Kasamba.com expert on crack?

May 9, 2006 · Replies 25 · May 12, 2006

Replies: 25

Views: 5K

High School Does a Pendulum Ever Stop Moving?

May 5, 2006 · Replies 3 · May 11, 2006

Replies: 3

Views: 4K

Undergrad Understanding Lift Force on Airplanes

May 10, 2006 · Replies 2 · May 10, 2006

Replies: 2

Views: 4K

Undergrad Fourier transform -> power spectrum

May 9, 2006 · Replies 3 · May 9, 2006

Replies: 3

Views: 49K

Why would jumping on a shoe box boat cause odd propulsion?

May 9, 2006 · Replies 3 · May 9, 2006

Replies: 3

Views: 2K

Undergrad Why does it feel like work when holding something up?

Apr 27, 2006 · Replies 13 · May 8, 2006

Replies: 13

Views: 18K

Curious Door Problem: Solve the Mystery at University

May 7, 2006 · Replies 10 · May 8, 2006

Replies: 10

Views: 3K

Undergrad Does this require More energy?

Apr 7, 2006 · Replies 8 · May 1, 2006

Replies: 8

Views: 3K

High School Rotational weight vs. dead weight

Apr 20, 2006 · Replies 5 · May 1, 2006

Replies: 5

Views: 11K

High School Freezing warm water - Mpemba effect

Nov 24, 2005 · Replies 20 · May 1, 2006

Replies: 20

Views: 9K

Undergrad Uniform Circular Motion & Gravity: A Connection?

Apr 30, 2006 · Replies 3 · Apr 30, 2006

Replies: 3

Views: 2K

Graduate Are Reactionless Space Drives the Future of Propulsion?

Mar 6, 2006 · Replies 35 · Apr 27, 2006

2

Replies: 35

Views: 5K

Undergrad Understanding the Effects of Salt Water on Pressure Testing for Plastic Pieces

Apr 26, 2006 · Replies 3 · Apr 27, 2006

Replies: 3

Views: 2K

High School How Does Licking Fingers Increase Friction?

Apr 27, 2006 · Replies 1 · Apr 27, 2006

Replies: 1

Views: 2K

Undergrad Why Does Wind Change Pitch as It Blows Harder?

Apr 26, 2006 · Replies 3 · Apr 27, 2006

Replies: 3

Views: 41K

Undergrad Why Does Theoretical Pressure Exceed Empirical Values in Hail Cannon Designs?

Apr 25, 2006 · Replies 4 · Apr 27, 2006

Replies: 4

Views: 16K

Undergrad How Much Energy Is Needed to Penetrate 9 Feet of Reinforced Concrete?

Apr 26, 2006 · Replies 2 · Apr 27, 2006

Replies: 2

Views: 2K

Undergrad Why Doesn't Car Speed Increase with Constant Accelerator Pressure?

Apr 24, 2006 · Replies 8 · Apr 26, 2006

Replies: 8

Views: 3K

High School Does Distilled Water Boil/Evaporate? Mythbusters Examined

Apr 24, 2006 · Replies 3 · Apr 24, 2006

Replies: 3

Views: 11K

Undergrad So, why does pushing create holes in some objects but not others?

Apr 24, 2006 · Replies 2 · Apr 24, 2006

Replies: 2

Views: 2K

High School Test Your Knowledge: Take the Novice Beginning Physics Quiz!

Apr 24, 2006 · Replies 1 · Apr 24, 2006

Replies: 1

Views: 2K

Undergrad Newton's Second Law: Light & Heavy Objects, Same Force & Acceleration?

Apr 23, 2006 · Replies 8 · Apr 24, 2006

Replies: 8

Views: 4K

Undergrad What guarantee Kirchoff's law of potential difference?

Apr 23, 2006 · Replies 3 · Apr 23, 2006

Replies: 3

Views: 3K

Undergrad F=ma: definition? law? neither?

Apr 18, 2006 · Replies 17 · Apr 23, 2006

Replies: 17

Views: 11K

Name of the pendulum thing with five balls suspended on strings?

Apr 19, 2006 · Replies 4 · Apr 22, 2006

Replies: 4

Views: 2K

What happened with my water bottle

Apr 17, 2006 · Replies 12 · Apr 19, 2006

Replies: 12

Views: 8K

High School Perpetual Motion: Tests & Guidelines for Legitimacy

Apr 18, 2006 · Replies 16 · Apr 18, 2006

Replies: 16

Views: 4K

Undergrad What is Going on Inside a Tornado?

Apr 16, 2006 · Replies 5 · Apr 17, 2006

Replies: 5

Views: 5K

Undergrad Newton, Time Arrow & Egg Unbreaking: Is it Possible?

Apr 16, 2006 · Replies 3 · Apr 17, 2006

Replies: 3

Views: 3K

Undergrad Computing how car pass the corner

Apr 15, 2006 · Replies 12 · Apr 17, 2006

Replies: 12

Views: 5K

Undergrad Derivation of the principle of moments

Mar 25, 2006 · Replies 29 · Apr 15, 2006

Replies: 29

Views: 15K

Undergrad Question on space suits and pressure

Apr 15, 2006 · Replies 2 · Apr 15, 2006

Replies: 2

Views: 2K

Graduate What Are Spin-Up Effects in Waterwheels and Their Impact on Inertial Damping?

Apr 11, 2006 · Replies 3 · Apr 15, 2006

Replies: 3

Views: 4K

High School Two football players are running at each other

Apr 12, 2006 · Replies 3 · Apr 15, 2006

Replies: 3

Views: 3K

Graduate Accelerating frame of references & their trasformations

Apr 8, 2006 · Replies 8 · Apr 15, 2006

Replies: 8

Views: 4K

High School How the same music note can sound different?

Apr 11, 2006 · Replies 1 · Apr 12, 2006

Replies: 1

Views: 2K

Undergrad How Does Average Force Relate to Motion in a Sinusoidal Force Scenario?

Apr 11, 2006 · Replies 12 · Apr 12, 2006

Replies: 12

Views: 3K

High School Can a Bullet Push a Person Back?

Apr 9, 2006 · Replies 7 · Apr 10, 2006

Replies: 7

Views: 5K

High School Constructing a Rube Goldberg Device - Need Ideas

Apr 3, 2006 · Replies 7 · Apr 9, 2006

Replies: 7

Views: 8K

Graduate Understanding Equilibrium Stability in Classical Mechanics: Virtual Work Lecture

Apr 9, 2006 · Replies 3 · Apr 9, 2006

Replies: 3

Views: 3K

High School Bigger Wheels Roll Down Hill Faster: The Reason?

Apr 9, 2006 · Replies 2 · Apr 9, 2006

Replies: 2

Views: 3K

High School Is a car moving up a hill at a constant velocity accelerating?

Apr 5, 2006 · Replies 18 · Apr 9, 2006

Replies: 18

Views: 4K

Undergrad Can Angular Momentum Equations Be Adapted from Linear Momentum Formulas?

Apr 5, 2006 · Replies 1 · Apr 8, 2006

Replies: 1

Views: 2K

Undergrad Project which involve a falling water droplet

Apr 7, 2006 · Replies 2 · Apr 8, 2006

Replies: 2

Views: 2K

Undergrad Self-Propelled Water: Leidenfrost Effect at U of Oregon

Apr 6, 2006 · Replies 2 · Apr 8, 2006

Replies: 2

Views: 3K

High School Why wouldn't this pepetual motion machine work?

Apr 3, 2006 · Replies 14 · Apr 6, 2006

Replies: 14

Views: 3K

Undergrad Conservation Laws - Linear & Angular Momentum Explained

Apr 5, 2006 · Replies 1 · Apr 5, 2006

Replies: 1

Views: 2K

Undergrad Inertia and conservation of momentum

Apr 2, 2006 · Replies 1 · Apr 4, 2006

Replies: 1

Views: 8K

High School Sound Wave Device: Answers Here!

Apr 3, 2006 · Replies 2 · Apr 4, 2006

Replies: 2

Views: 7K

Graduate Can a Rotating Object in Space Curve its Trajectory?

Apr 1, 2006 · Replies 6 · Apr 3, 2006

Replies: 6

Views: 6K

Undergrad Moment of inertia and martial arts

Mar 31, 2006 · Replies 3 · Apr 1, 2006

Replies: 3

Views: 4K

Undergrad General Potential Gravitational Energy

Mar 30, 2006 · Replies 2 · Apr 1, 2006

Replies: 2

Views: 3K

Graduate How well do I understand pressure?

Mar 29, 2006 · Replies 5 · Mar 31, 2006

Replies: 5

Views: 2K

High School What Happens If You Jump Into a Hole Drilled Through the Earth?

Mar 29, 2006 · Replies 3 · Mar 29, 2006

Replies: 3

Views: 2K

Undergrad Is a Linear Launch System Feasible for NASA's Spacecraft? Experts Weigh In

Mar 26, 2006 · Replies 3 · Mar 29, 2006

Replies: 3

Views: 2K

Graduate Gravitational Force, the derivative of Gravitational Potential Energy?

Mar 27, 2006 · Replies 3 · Mar 27, 2006

Replies: 3

Views: 17K

High School Is Physics Truly Failsafe in Its Laws?

Mar 16, 2006 · Replies 8 · Mar 27, 2006

Replies: 8

Views: 4K

Undergrad Piper the cat falls 80 feet from tree

Mar 24, 2006 · Replies 8 · Mar 26, 2006

Replies: 8

Views: 7K

Undergrad Can Trigonometry Help Predict Projectile Interception in Video Games?

Mar 24, 2006 · Replies 3 · Mar 25, 2006

Replies: 3

Views: 2K

High School Why a bike can balane when the wheelse

Mar 22, 2006 · Replies 5 · Mar 25, 2006

Replies: 5

Views: 3K

Undergrad Solving Wave Frequency & Speed: Questions & Answers

Mar 22, 2006 · Replies 10 · Mar 23, 2006

Replies: 10

Views: 3K

Undergrad Gravitational potential energy negative?

Mar 22, 2006 · Replies 1 · Mar 22, 2006

Replies: 1

Views: 31K

Undergrad Will the Bullet Hit the Monkey If It Doesn't Jump?

Mar 22, 2006 · Replies 11 · Mar 22, 2006

Replies: 11

Views: 5K

Undergrad Calculating Effects of Collisions in Series - Melissa

Mar 18, 2006 · Replies 7 · Mar 21, 2006

Replies: 7

Views: 2K

Undergrad Why a Wheel Moves When Rotated - Understanding Torque & Force

Mar 18, 2006 · Replies 5 · Mar 18, 2006

Replies: 5

Views: 6K

Undergrad How Does Bernoulli's Principle Explain Everyday Phenomena?

Mar 15, 2006 · Replies 1 · Mar 15, 2006

Replies: 1

Views: 10K

Undergrad What causes an increase in water velocity when narrowing the outlet of a hose?

Feb 23, 2006 · Replies 9 · Mar 15, 2006

Replies: 9

Views: 3K

High School The Great Slow Race: Compete to Move the Furthest & Slowest!

Mar 14, 2006 · Replies 1 · Mar 14, 2006

Replies: 1

Views: 2K

High School Drop Test: Mass vs Horizontal Component

Feb 25, 2006 · Replies 20 · Mar 14, 2006

Replies: 20

Views: 5K

High School What is the slowest Velocity possible?

Mar 14, 2006 · Replies 8 · Mar 14, 2006

Replies: 8

Views: 3K

Undergrad What If the Human Body Used First or Second Class Levers?

Mar 13, 2006 · Replies 4 · Mar 14, 2006

Replies: 4

Views: 17K

Graduate Effect of changing gravity on flying animals

Mar 11, 2006 · Replies 9 · Mar 14, 2006

Replies: 9

Views: 6K

Graduate Where does the spring force come from?

Mar 10, 2006 · Replies 9 · Mar 13, 2006

Replies: 9

Views: 5K

Undergrad What is the maximum weight a lever can lift based on its mechanics?

Mar 11, 2006 · Replies 5 · Mar 12, 2006

Replies: 5

Views: 3K

Undergrad Question on lifting power of gases

Mar 12, 2006 · Replies 1 · Mar 12, 2006

Replies: 1

Views: 5K

Undergrad What is the connection between force and energy conservation?

Mar 11, 2006 · Replies 4 · Mar 11, 2006

Replies: 4

Views: 2K

Graduate Understanding Noether's Theorem: Conservation of Momentum and Energy

Mar 1, 2006 · Replies 36 · Mar 11, 2006

2

Replies: 36

Views: 10K

Undergrad Period & Radius of Circular Motion: Equations Explained

Feb 7, 2006 · Replies 6 · Mar 9, 2006

Replies: 6

Views: 4K

Undergrad Artificial Means of Jumping Higher

Mar 4, 2006 · Replies 4 · Mar 9, 2006

Replies: 4

Views: 3K

High School Wave Speed in Water: Deeper Water Faster?

Mar 8, 2006 · Replies 1 · Mar 8, 2006

Replies: 1

Views: 6K

Undergrad Elastic Properties of a rubber band

Mar 4, 2006 · Replies 11 · Mar 7, 2006

Replies: 11

Views: 21K

Undergrad Physics & Golf: Investigating Shaft Flex & Ball Direction

Mar 3, 2006 · Replies 14 · Mar 6, 2006

Replies: 14

Views: 4K

Undergrad Elastic Collision: Isolated Systems & Conservative Forces

Mar 6, 2006 · Replies 3 · Mar 6, 2006

Replies: 3

Views: 3K

High School How Does Eye Resolution Change at Different Lux Levels?

Mar 1, 2006 · Replies 1 · Mar 5, 2006

Replies: 1

Views: 2K

Graduate How Do Dissipative and Conservative Systems Differ in Dynamics?

Mar 4, 2006 · Replies 1 · Mar 5, 2006

Replies: 1

Views: 8K

High School Where Can I Find Angular Velocity Data for Different Types of Bullets and Guns?

Mar 4, 2006 · Replies 1 · Mar 4, 2006

Replies: 1

Views: 3K

High School Can Coffee Cool Below Room Temperature?

Mar 3, 2006 · Replies 1 · Mar 3, 2006

Replies: 1

Views: 7K

High School Why Does Ordinary Water Appear Blue in a White Bucket?

Mar 3, 2006 · Replies 4 · Mar 3, 2006

Replies: 4

Views: 3K

High School Rotational Motion - Does a Body Rotate Forever After Torque is Applied?

Mar 2, 2006 · Replies 5 · Mar 2, 2006

Replies: 5

Views: 2K

Undergrad Landing an Aeroplane Using Differential Pressure: A How-To Guide

Mar 1, 2006 · Replies 5 · Mar 2, 2006

Replies: 5

Views: 2K

Graduate Gyroscope precession - WHY? (What's the cause?)

Feb 25, 2006 · Replies 8 · Mar 1, 2006

Replies: 8

Views: 17K

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