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Atmospheric pressure at high altitude
Jul 9, 2009
Replies
24
Views
35K
Billiard Ball Center Of Percussion Question, Please
Jul 9, 2009
Replies
1
Views
3K
Particle System (Gravity, Buoyancy and Drag),
Jul 9, 2009
Replies
4
Views
8K
Why do water drops bounce on hot surfaces?
Jul 9, 2009
Replies
2
Views
3K
Speed vs Friction: The Mystery Explained
Jul 9, 2009
Replies
2
Views
5K
Power to rotate shaft in bending
Jul 8, 2009
Replies
1
Views
5K
Why water compressibility is neglicable
Jul 7, 2009
Replies
5
Views
2K
Pipe deformation under pressure
Jul 7, 2009
Replies
4
Views
10K
Can High-Speed Blending Heat Up Water Due to Molecular Friction?
Jul 6, 2009
Replies
4
Views
2K
Can an Inverted Pendulum Stand on End Indefinitely?
Jul 6, 2009
Replies
2
Views
2K
Pumping air into partially full beer bottles to preserve carbonation
Jul 5, 2009
Replies
24
Views
6K
Calculating Force of a 600ml Bottle Underwater
Jul 5, 2009
Replies
9
Views
2K
How can I accurately simulate collisions between circles and inclined planes?
Jul 5, 2009
Replies
2
Views
3K
Whats the sound that you hear from scratching a fork on a plate called
Jul 3, 2009
Replies
10
Views
13K
Magnet Bar Falling in Copper Pipe: Lenz's Law Impact?
Jul 2, 2009
Replies
2
Views
1K
Acceleration in Water compared to Air
Jul 2, 2009
Replies
4
Views
10K
Maximum velocity of buoyant object
Jul 2, 2009
Replies
2
Views
5K
How many times more powerful are gammaray bursts than supernovas
Jul 2, 2009
Replies
2
Views
2K
Learn Lagrangian & Hamiltonian Mechanics without Calculus of Variations
Jul 2, 2009
Replies
1
Views
2K
Displacement & Work: An Intro to Physics
Jul 1, 2009
Replies
22
Views
17K
Inertia: Jumping in a Moving Train - Results?
Jul 1, 2009
Replies
1
Views
2K
Finding the Law to Web Research
Jul 1, 2009
Replies
4
Views
7K
Understanding Rotational Mechanics - Find the Reasons!
Jun 30, 2009
Replies
26
Views
5K
Please explain what an axis of inertia or principle axis of inertia is
Jun 30, 2009
Replies
2
Views
7K
Information, what counts as it, why isn't phase velocity etc. information?
Jun 28, 2009
Replies
3
Views
4K
What Formulas are Needed to Calculate Rotational Force and Power for an Electric Bicycle Motor?
Jun 28, 2009
Replies
1
Views
2K
Question on remote power harnessing?
Jun 27, 2009
Replies
6
Views
2K
Conservation of Energy Tutor | Physics Problem | x162,x163
Jun 27, 2009
Replies
20
Views
3K
Rate of change of acceleration?
Jun 27, 2009
Replies
3
Views
9K
Potential vs. Potential Energy
Jun 26, 2009
Replies
4
Views
3K
The most basic question re: acceleration, velocity, and force
Jun 26, 2009
Replies
9
Views
4K
Harnessing Power from Free Flowing Rivers: An Electrical Engineer's Exploration
Jun 26, 2009
Replies
20
Views
9K
Parallel and perpendicuar axis theorems and other stuff on rotational mechanics
Jun 26, 2009
Replies
6
Views
2K
Calculating the rotational component of a force on a Newtonian body?
Jun 26, 2009
Replies
5
Views
5K
Are Seatbelts Strong Enough to Protect Us During a Car Crash?
Jun 26, 2009
Replies
7
Views
3K
Deceleration calculation for moving screen objects
Jun 25, 2009
Replies
7
Views
4K
Finding a Solution for the Drag Equation
Jun 25, 2009
Replies
2
Views
4K
Absorption spectrum of water in the UV range
Jun 25, 2009
Replies
1
Views
17K
Iron ball in water, reading on weighing machine
Jun 24, 2009
Replies
3
Views
4K
Elliptical movement of a svinging pendulum
Jun 24, 2009
Replies
4
Views
11K
Conservation of momentum of ball thrown
Jun 23, 2009
Replies
5
Views
4K
Find density on dropping a ball
Jun 23, 2009
Replies
7
Views
2K
Kinetic Friction Experiment Conservation of Energy Question
Jun 23, 2009
Replies
2
Views
4K
How Does Wrist Rotation Power a Powerball's Rotor?
Jun 23, 2009
Replies
1
Views
2K
Barton's Pendulums - Energy Conservation
Jun 23, 2009
Replies
1
Views
4K
Solenoid power and conical area
Jun 23, 2009
Replies
2
Views
3K
Proving Car Was Parked After Hit and Run
Jun 22, 2009
Replies
11
Views
2K
Coservation of momentum in inelastic collisions
Jun 22, 2009
Replies
3
Views
2K
To estimate the required torque
Jun 22, 2009
Replies
10
Views
3K
G-Force Accelerometer conversion to Pounds per Square Inch
Jun 21, 2009
Replies
3
Views
26K
Does Every Object in the Universe Have Absolute Zero Potential Energy?
Jun 21, 2009
Replies
7
Views
2K
Potential Energy Clarification
Jun 20, 2009
Replies
2
Views
2K
Running Before Jumping - What's the Explanation?
Jun 19, 2009
Replies
15
Views
20K
Rotation about the center of mass and spin angular momentum
Jun 18, 2009
Replies
4
Views
3K
Energy Source for Supermarkets: Cars or Kinetic Engines?
Jun 18, 2009
Replies
10
Views
3K
Projectile Horizontal Range: Debunking the Intuition
Jun 17, 2009
Replies
6
Views
2K
Initial velocity be larger or smaller once its calculated?
Jun 17, 2009
Replies
1
Views
2K
How Do Zero Gravity and Terminal Velocity Affect Passengers in an Aircraft?
Jun 17, 2009
Replies
2
Views
4K
Air drag on a wire moving lengthways
Jun 16, 2009
Replies
1
Views
2K
Physics of riding a motorcycle
Jun 16, 2009
Replies
10
Views
5K
Quantifying explosions - how to determine force/pressure/etc?
Jun 16, 2009
Replies
1
Views
2K
Discover the Meaning of Δy in Projectile Motion Formula: A Comprehensive Guide
Jun 16, 2009
Replies
5
Views
28K
Internal Ballistics: Determine Muzzle Velocity from Powder Mass
Jun 16, 2009
Replies
1
Views
2K
Newton's laws and non inertial frame of reference
Jun 16, 2009
Replies
3
Views
5K
Gravitational Potential Energy during a Free-Fall Impact
Jun 16, 2009
Replies
5
Views
6K
Equipotential Surfaces: Understanding & Conceptual Problems
Jun 16, 2009
Replies
4
Views
2K
Would the actual velocity be larger/smaller?
Jun 16, 2009
Replies
1
Views
2K
Does Friction Always Act Upward on an Ascending Cylinder?
Jun 16, 2009
Replies
6
Views
3K
Forces required to accelerate a mass on a spring
Jun 15, 2009
Replies
1
Views
2K
What Frequency Excites Resonance in a Two-Mass, Two-Spring System?
Jun 15, 2009
Replies
1
Views
4K
Why Does Sound Travel at a Constant Speed in a Medium?
Jun 14, 2009
Replies
1
Views
2K
Work: does distance HAVE to be linear?
Jun 14, 2009
Replies
2
Views
1K
Funny balloon thought experiment
Jun 14, 2009
2
Replies
86
Views
13K
What Happens to Water Pressure in a Glass When Inverted?
Jun 14, 2009
Replies
9
Views
3K
Angular momentum vs. Linear momentum
Jun 13, 2009
Replies
1
Views
3K
What prevents infinite potential with Nernst Equation
Jun 13, 2009
Replies
4
Views
5K
Laws of Motion in weight lifting
Jun 13, 2009
Replies
3
Views
7K
Why is average velocity=(v+u)/2
Jun 13, 2009
Replies
8
Views
10K
Absolute velocity measurements
Jun 13, 2009
Replies
3
Views
2K
Acceleration, Mass & Gravitational Tug
Jun 13, 2009
Replies
4
Views
3K
Understanding Centripetal Force in a Pendulum System
Jun 12, 2009
Replies
3
Views
3K
Why Does a Ball Stay Still on a Flat Surface?
Jun 12, 2009
Replies
29
Views
5K
What kills you when you fall down?
Jun 12, 2009
Replies
16
Views
33K
Accelerator and Beams - Tools for Discovery and Innovation
Jun 11, 2009
Replies
8
Views
16K
Car's Max. Fuel-Efficient Speed
Jun 11, 2009
Replies
1
Views
3K
Why does a whistle sound louder when you blow harder?
Jun 11, 2009
Replies
31
Views
14K
The Speed of Light: Examining Incremental Movement
Jun 10, 2009
Replies
13
Views
3K
Pure water doesn't freeze at 32F ?
Jun 10, 2009
Replies
11
Views
43K
The role of surface tension in capillarity
Jun 10, 2009
Replies
2
Views
2K
Conservation of Mass - Does Burning Wood Convert Mass to Energy?
Jun 10, 2009
Replies
8
Views
6K
Why Is the Balmer Series More Commonly Seen than Other Hydrogen Emission Series?
Jun 10, 2009
Replies
4
Views
3K
How much force or speed is needed to jump
Jun 9, 2009
Replies
13
Views
14K
Another conservation of momentum question, but this one involves gravity
Jun 9, 2009
Replies
5
Views
2K
Bohr's calculation of stopping power
Jun 9, 2009
Replies
3
Views
5K
What Determines the Direction of an Object's Motion Expressed as Energy?
Jun 8, 2009
Replies
18
Views
3K
Explaining Friction: Reconciling Quantum Mechanics & Contact Force
Jun 8, 2009
Replies
6
Views
9K
Who introduced the concept of variable velocity?
Jun 8, 2009
Replies
6
Views
2K
Rolling different masses down a hill - Intertia Question
Jun 7, 2009
Replies
39
Views
102K
Designing a Speed Retarding System for a Gokart
Jun 7, 2009
Replies
2
Views
2K
Building a Linear Accelerator at Home: Safety Concerns
Jun 6, 2009
Replies
3
Views
4K
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