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Graduate Cosmic potential:positive/negative

Nov 7, 2004 · Replies 8 · Nov 10, 2004

Replies: 8

Views: 3K

High School Fields & Potentials: Electromagnetism Explained

Nov 10, 2004 · Replies 1 · Nov 10, 2004

Replies: 1

Views: 2K

High School What is wrong with a perpetual motion machine?

Oct 27, 2004 · Replies 44 · Nov 9, 2004

2

Replies: 44

Views: 12K

High School Oh The Joys. Physics Coursework

Nov 2, 2004 · Replies 3 · Nov 9, 2004

Replies: 3

Views: 4K

Undergrad Optimizing Gymnastics Flips: Calculating Rotation Rate with Moment of Inertia

Nov 6, 2004 · Replies 10 · Nov 9, 2004

Replies: 10

Views: 3K

Undergrad Did Henry Cavendish Discover a Surprising Phenomenon in 1798?

Nov 7, 2004 · Replies 8 · Nov 8, 2004

Replies: 8

Views: 6K

Undergrad Setting up a graph for acc. of gravity

Nov 8, 2004 · Replies 3 · Nov 8, 2004

Replies: 3

Views: 6K

Undergrad Why must an orbit become smaller when an orbiting body loses velocity?

Nov 6, 2004 · Replies 5 · Nov 8, 2004

Replies: 5

Views: 21K

Graduate Final Resting Place of a broken wood stick loaded with potential energy

Nov 4, 2004 · Replies 4 · Nov 7, 2004

Replies: 4

Views: 3K

Undergrad How Does the Angle Between Two Supporting Wires Affect the Tension Force?

Nov 7, 2004 · Replies 2 · Nov 7, 2004

Replies: 2

Views: 5K

High School Center of mass of a right triangle

Nov 6, 2004 · Replies 1 · Nov 6, 2004

Replies: 1

Views: 9K

Undergrad Understand Hooke's Law and Spring Dynamics

Oct 18, 2004 · Replies 4 · Nov 6, 2004

Replies: 4

Views: 3K

Undergrad Understanding Coupled Oscillations: The Impact of Gravity on Displaced Particles

Nov 5, 2004 · Replies 3 · Nov 6, 2004

Replies: 3

Views: 3K

High School Is the resultant moment zero when a motorcycle is turning?

Nov 5, 2004 · Replies 1 · Nov 5, 2004

Replies: 1

Views: 2K

Undergrad Sound Exp: Find Frequency of Sound Wave

Nov 4, 2004 · Replies 4 · Nov 5, 2004

Replies: 4

Views: 3K

Graduate Approximating ballistic motion.

Nov 2, 2004 · Replies 2 · Nov 5, 2004

Replies: 2

Views: 2K

Graduate Hydrogen-boron High Density Plasma Toroid Fusion

Oct 31, 2004 · Replies 3 · Nov 4, 2004

Replies: 3

Views: 4K

Undergrad Conservation of Energy on Inclined Plane

Oct 22, 2004 · Replies 2 · Nov 4, 2004

Replies: 2

Views: 6K

Graduate What Are the Implications of Reaction Torque Propulsion?

Mar 31, 2004 · Replies 77 · Nov 4, 2004

3

Replies: 77

Views: 14K

Undergrad Problem on block sliding on a wedge

Nov 4, 2004 · Replies 2 · Nov 4, 2004

Replies: 2

Views: 12K

Undergrad Help 2-dimensional motion, with a bounce

Nov 2, 2004 · Replies 3 · Nov 3, 2004

Replies: 3

Views: 2K

High School Static vs. kinetic frictional force

Oct 29, 2004 · Replies 7 · Nov 3, 2004

Replies: 7

Views: 7K

High School What Produces Sound when You Clap Your Hands?

Sep 7, 2004 · Replies 20 · Nov 2, 2004

Replies: 20

Views: 20K

Undergrad Will Our Reliance on Hydrocarbons Lead to Another Ice Age?

Oct 13, 2004 · Replies 4 · Nov 2, 2004

Replies: 4

Views: 3K

High School Airbags suppose to reduce injury?

Oct 31, 2004 · Replies 15 · Nov 2, 2004

Replies: 15

Views: 5K

Graduate Collision of Particles: What Force Causes Repulsion?

Nov 2, 2004 · Replies 1 · Nov 2, 2004

Replies: 1

Views: 2K

Undergrad Need help - ramp problem inclined plane

Nov 2, 2004 · Replies 1 · Nov 2, 2004

Replies: 1

Views: 4K

Undergrad How to calculate the moment of inertia of the rigid body?

Oct 28, 2004 · Replies 6 · Nov 2, 2004

Replies: 6

Views: 29K

Undergrad Is a 60kg Man an Excitation Force in a Spring-Mass-Damper System?

Nov 1, 2004 · Replies 8 · Nov 2, 2004

Replies: 8

Views: 6K

Graduate How Does the Lagrangian Transform in Polar Coordinates for Orbital Motion?

Oct 26, 2004 · Replies 7 · Nov 2, 2004

Replies: 7

Views: 5K

Graduate Potential energy of a system of particles

Nov 1, 2004 · Replies 2 · Nov 1, 2004

Replies: 2

Views: 7K

Undergrad How do I calculate the additional energy needed to escape Earth's orbit?

Oct 31, 2004 · Replies 6 · Nov 1, 2004

Replies: 6

Views: 5K

High School Need Help with HS Physics Problem? Calculate Total Distance Traveled

Oct 31, 2004 · Replies 6 · Nov 1, 2004

Replies: 6

Views: 2K

Mysterious Candle Flame Flickering at Jazz Concert

Nov 1, 2004 · Replies 1 · Nov 1, 2004

Replies: 1

Views: 2K

Undergrad Integrating gravity(g)= -9.8m/s

Sep 25, 2004 · Replies 6 · Nov 1, 2004

Replies: 6

Views: 2K

Undergrad Angular momentum and tension of string

Oct 31, 2004 · Replies 3 · Oct 31, 2004

Replies: 3

Views: 7K

Undergrad Help Mike Find Velocity of Ball Down Incline - ME Dynamics Problem

Oct 30, 2004 · Replies 4 · Oct 31, 2004

Replies: 4

Views: 2K

Undergrad Calculate Matt's Landing Speed on a Skateboard | Mass & Velocity Included"

Oct 31, 2004 · Replies 2 · Oct 31, 2004

Replies: 2

Views: 3K

Undergrad Calculating Force Direction of a Water-Skier Tow Rope

Oct 31, 2004 · Replies 2 · Oct 31, 2004

Replies: 2

Views: 9K

Graduate Vorticity where angular velocity is function of r

Oct 30, 2004 · Replies 1 · Oct 31, 2004

Replies: 1

Views: 4K

Undergrad Projectile Motion Equations with Non-Constant Acceleration

Oct 29, 2004 · Replies 9 · Oct 30, 2004

Replies: 9

Views: 2K

Undergrad Ball rebounding to less than initial height

Oct 30, 2004 · Replies 3 · Oct 30, 2004

Replies: 3

Views: 11K

High School X" Marked Floor: Will it Stay After 5 Hours?

Oct 29, 2004 · Replies 8 · Oct 30, 2004

Replies: 8

Views: 3K

Undergrad What is the equation for finding the mass of Jupiter based on Callisto's orbit?

Oct 29, 2004 · Replies 6 · Oct 29, 2004

Replies: 6

Views: 3K

High School No terminal velocity in a vacuum?

Oct 28, 2004 · Replies 14 · Oct 29, 2004

Replies: 14

Views: 18K

Undergrad What do they mean by plot T^2 verus ms?

Oct 28, 2004 · Replies 2 · Oct 29, 2004

Replies: 2

Views: 2K

Undergrad Solving Rotating Heads Assessments: What's Correct?

Oct 28, 2004 · Replies 3 · Oct 28, 2004

Replies: 3

Views: 5K

Why did slide rules not have the ability to do simple addition and subtraction?

Oct 25, 2004 · Replies 19 · Oct 28, 2004

Replies: 19

Views: 6K

Undergrad Calculating Force Applied to Wall with 1st & 3rd Laws

Oct 28, 2004 · Replies 1 · Oct 28, 2004

Replies: 1

Views: 2K

Graduate Gravity and atomic fields - due to high relative motion?

Oct 28, 2004 · Replies 4 · Oct 28, 2004

Replies: 4

Views: 4K

Undergrad Optimum Angle to Throw a Baseball

Oct 26, 2004 · Replies 11 · Oct 28, 2004

Replies: 11

Views: 19K

High School Maximizing Jump Distance from a Small Exploding Boat

Oct 28, 2004 · Replies 3 · Oct 28, 2004

Replies: 3

Views: 3K

High School Description using Newton's laws

Oct 27, 2004 · Replies 4 · Oct 28, 2004

Replies: 4

Views: 2K

High School Grade 11 Physics Help: Questions & Answers

Oct 27, 2004 · Replies 3 · Oct 28, 2004

Replies: 3

Views: 11K

Undergrad Find Value of C for Catenary Cable | Trial and Error Method

Oct 28, 2004 · Replies 1 · Oct 28, 2004

Replies: 1

Views: 4K

Undergrad How does sonoilluminessence work

Oct 25, 2004 · Replies 3 · Oct 27, 2004

Replies: 3

Views: 2K

Undergrad Simulating 2D Collisions: Elastic Circle Interactions and Velocity Calculation

Oct 26, 2004 · Replies 1 · Oct 27, 2004

Replies: 1

Views: 2K

Undergrad What Was the Angle Between Two Objects in an Inelastic Collision?

Oct 26, 2004 · Replies 1 · Oct 27, 2004

Replies: 1

Views: 6K

High School Truck and Car Collision at 70mph: Effects of Acceleration on a Moving Trailer

Oct 23, 2004 · Replies 10 · Oct 27, 2004

Replies: 10

Views: 3K

Undergrad Why Do Heavier Cars Roll Downhill Faster in a Soapbox Derby?

Oct 23, 2004 · Replies 3 · Oct 26, 2004

Replies: 3

Views: 8K

Undergrad Solve a radial acceleration problem?

Oct 25, 2004 · Replies 8 · Oct 26, 2004

Replies: 8

Views: 3K

Undergrad Where should I place a weight on a trailer to achieve a specific tongue weight?

Oct 26, 2004 · Replies 2 · Oct 26, 2004

Replies: 2

Views: 10K

Undergrad Do Rubber Bands Truly Follow the Modified Hooke's Law Formula?

Oct 25, 2004 · Replies 6 · Oct 26, 2004

Replies: 6

Views: 12K

Graduate Damped Harmonic Oscillator Approximation?

Oct 25, 2004 · Replies 3 · Oct 26, 2004

Replies: 3

Views: 3K

High School Unlock the Mystery of Plasma Balls

Oct 23, 2004 · Replies 4 · Oct 26, 2004

Replies: 4

Views: 3K

Undergrad Do the classics still work? and horizons

Oct 24, 2004 · Replies 4 · Oct 26, 2004

Replies: 4

Views: 4K

High School Can Killer Whales Jump 15 Feet?

Oct 24, 2004 · Replies 2 · Oct 25, 2004

Replies: 2

Views: 8K

Graduate How to Find Position as a Function of Time for Accelerated Charged Particles?

Oct 23, 2004 · Replies 5 · Oct 25, 2004

Replies: 5

Views: 4K

High School Why we wear seat belts in terms of momentum?

Oct 25, 2004 · Replies 8 · Oct 25, 2004

Replies: 8

Views: 4K

Undergrad How long does it take for the pedestrian to reach the front of the vehicle?

Oct 25, 2004 · Replies 2 · Oct 25, 2004

Replies: 2

Views: 4K

Undergrad Why Doesn't the Object Fall in a Centripetal Force Experiment?

Oct 25, 2004 · Replies 18 · Oct 25, 2004

Replies: 18

Views: 4K

Undergrad Surprising Rebound Speed: Physics Puzzle with Basketball and Baseball

Oct 25, 2004 · Replies 1 · Oct 25, 2004

Replies: 1

Views: 3K

Undergrad Calculate the torque about the elbow

Oct 24, 2004 · Replies 2 · Oct 25, 2004

Replies: 2

Views: 5K

Undergrad Newton's 2nd law is really the 3rd law?

Sep 24, 2004 · Replies 8 · Oct 25, 2004

Replies: 8

Views: 4K

Graduate Bare potential energy equation

Oct 24, 2004 · Replies 1 · Oct 24, 2004

Replies: 1

Views: 2K

Undergrad Jumping over objects while in motion

Oct 23, 2004 · Replies 2 · Oct 24, 2004

Replies: 2

Views: 2K

Graduate Understanding the Ratio of r Motion to Revolution Periods - Clarification Needed

Oct 22, 2004 · Replies 3 · Oct 23, 2004

Replies: 3

Views: 2K

Undergrad Solving a Puzzling Problem: A Disk and a Hoop

Oct 21, 2004 · Replies 8 · Oct 22, 2004

Replies: 8

Views: 14K

High School How to Lower an Egg Slowly from 8 Feet Without Exceeding 5 Minutes?

Oct 22, 2004 · Replies 3 · Oct 22, 2004

Replies: 3

Views: 3K

High School What is the formula for calculating drag coefficient?

Oct 22, 2004 · Replies 1 · Oct 22, 2004

Replies: 1

Views: 13K

Undergrad Calculating Drag for Model Rockets

Oct 21, 2004 · Replies 3 · Oct 21, 2004

Replies: 3

Views: 10K

Graduate What is going on here? - Mechanics Puzzler

Oct 18, 2004 · Replies 26 · Oct 21, 2004

Replies: 26

Views: 4K

Undergrad What power is needed to create such a constant force?

Oct 18, 2004 · Replies 6 · Oct 21, 2004

Replies: 6

Views: 2K

Undergrad Standard Deviation: What Does it Measure & Agreeing with G?

Oct 21, 2004 · Replies 3 · Oct 21, 2004

Replies: 3

Views: 8K

Undergrad Car Radio Waves & Doppler Effect: Disruption?

Oct 20, 2004 · Replies 5 · Oct 21, 2004

Replies: 5

Views: 2K

Undergrad How is the formula for calculating solar pressure derived?

Oct 20, 2004 · Replies 1 · Oct 20, 2004

Replies: 1

Views: 2K

Undergrad Solve the Riddle: Boat Moving at 1 m/s Toward Island

Sep 29, 2004 · Replies 21 · Oct 19, 2004

Replies: 21

Views: 4K

Undergrad Can the coefficient of static friction be calculated from given information?

Oct 19, 2004 · Replies 2 · Oct 19, 2004

Replies: 2

Views: 2K

Undergrad Coefficient of static friction problem

Sep 21, 2004 · Replies 2 · Oct 19, 2004

Replies: 2

Views: 9K

Graduate Using changing acceleration due to gravity?

Oct 18, 2004 · Replies 1 · Oct 18, 2004

Replies: 1

Views: 3K

Undergrad Where Can I Find a Comprehensive Physics Book with Emphasis on Application?

Oct 18, 2004 · Replies 2 · Oct 18, 2004

Replies: 2

Views: 2K

Undergrad Calculating the Dot Product: A*B

Oct 18, 2004 · Replies 3 · Oct 18, 2004

Replies: 3

Views: 3K

Undergrad What is the minimum distance in which the car will stop?

Oct 18, 2004 · Replies 1 · Oct 18, 2004

Replies: 1

Views: 2K

High School How can I calculate the average velocity of two vectors?

Oct 17, 2004 · Replies 4 · Oct 18, 2004

Replies: 4

Views: 6K

Undergrad Is the Textbook Solution for Simple Oscillator's x(t) Incorrect?

Oct 18, 2004 · Replies 4 · Oct 18, 2004

Replies: 4

Views: 4K

Undergrad Analyzing Forces in Structures: West-Point Bridge Designer

Oct 17, 2004 · Replies 1 · Oct 18, 2004

Replies: 1

Views: 4K

Undergrad What is the speed with which the water flows out of the hose

Oct 17, 2004 · Replies 2 · Oct 18, 2004

Replies: 2

Views: 4K

Undergrad Solve Energy Stored Problem: 70kg Man, 85m Fall, 50m Bungee

Oct 17, 2004 · Replies 1 · Oct 17, 2004

Replies: 1

Views: 6K

High School Will an object moving at a constant motion

Oct 17, 2004 · Replies 3 · Oct 17, 2004

Replies: 3

Views: 3K

Undergrad Which Marble Bounces Higher, Steel on Steel or Steel on Glass?

Oct 17, 2004 · Replies 1 · Oct 17, 2004

Replies: 1

Views: 3K

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