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Using accelerometer sensor to determine speed of person
Sep 28, 2009
Replies
5
Views
10K
Conservation of momentum in Car Vs. Wall
Sep 28, 2009
Replies
3
Views
13K
Collision of two identical cars moving in opposite dirrections
Sep 28, 2009
Replies
1
Views
2K
Can Sound Waves at 1100Hz Be Received and Emitted Effectively?
Sep 28, 2009
Replies
5
Views
2K
Velocity, speed, acceleration and ?
Sep 28, 2009
Replies
5
Views
2K
Help with Urgent Physics Incline Problem
Sep 27, 2009
Replies
1
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4K
It is an interesting point you raise, though.Why do objects have inertia?
Sep 27, 2009
Replies
14
Views
7K
What is the best book for understanding fluid mechanics?
Sep 26, 2009
Replies
4
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4K
Acceleration of gravity in space.
Sep 26, 2009
Replies
6
Views
3K
Speed Limit to Human Sprinting
Sep 26, 2009
Replies
7
Views
3K
Concerning a pressure coefficient
Sep 26, 2009
Replies
1
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1K
General Question Kinematics Units
Sep 26, 2009
Replies
2
Views
2K
Numerical solution of vector potential
Sep 25, 2009
Replies
3
Views
2K
How Does Viscosity Influence the Rolling Motion of Cans?
Sep 25, 2009
Replies
6
Views
9K
Planes affected by earth's rotational spin
Sep 25, 2009
Replies
17
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12K
BEAR,SABLE, and building a better balloon.
Sep 25, 2009
Replies
2
Views
2K
Laws of Conservation of Energy
Sep 25, 2009
Replies
4
Views
2K
Torque vs Weight: Calculate Force for 6.156 kgf cm, 20 rpm, 5 cm Rad
Sep 24, 2009
Replies
1
Views
5K
Potential energy diagram for a nuclear reaction
Sep 24, 2009
Replies
2
Views
4K
Calculating Ball Speed and Direction After 2D Collision: Game Programming Tips
Sep 24, 2009
Replies
3
Views
3K
Is building a particle accelerator legal ?
Sep 24, 2009
Replies
3
Views
9K
How to find radius if I know angle and velocity
Sep 24, 2009
Replies
6
Views
17K
Sailboat forces and Newton's 3rd law
Sep 23, 2009
Replies
16
Views
14K
How to calculate work done by spring?
Sep 23, 2009
Replies
12
Views
19K
Where Does the Energy Come From in Capillary Action?
Sep 22, 2009
Replies
7
Views
4K
Can the direction of friction force be opposite to the direction of motion?
Sep 22, 2009
Replies
2
Views
3K
Momentum and conservation of momentum
Sep 21, 2009
Replies
1
Views
2K
Coriolis and different refererence frames
Sep 21, 2009
Replies
2
Views
3K
How to use Lagrange approach to solve elastic collision?
Sep 21, 2009
Replies
6
Views
6K
What is the Force Exerted by a Ball Against a Wall Supported by a Thin Wire?
Sep 21, 2009
Replies
2
Views
5K
Would a knot in a falling chain make a difference?
Sep 21, 2009
Replies
2
Views
3K
How did Newton derive his law of gravity?
Sep 20, 2009
Replies
1
Views
9K
Work done to stretch a spring vs Work done by a spring?
Sep 20, 2009
Replies
11
Views
27K
Motion of two objects in a perfectly inelastic collision
Sep 20, 2009
Replies
3
Views
3K
Projectile motion: Bi level equation
Sep 19, 2009
Replies
7
Views
7K
Understanding Viscosity and Its Relation to Friction in Fluid Mechanics
Sep 19, 2009
Replies
4
Views
5K
About Liouville's theorem(classical mechanics)
Sep 19, 2009
Replies
2
Views
3K
Relative Motion of two cars are moving with constant velocities
Sep 19, 2009
Replies
5
Views
2K
Solve Your Kinematics Problem: Understanding Jumping on a Moving Object
Sep 18, 2009
Replies
1
Views
2K
Angular momentum in planetary/satellite orbital systems
Sep 18, 2009
Replies
4
Views
7K
What air pressure can the human body survive?
Sep 18, 2009
Replies
35
Views
140K
Conceptual question about torque
Sep 18, 2009
Replies
14
Views
3K
Perpetual motion machines - gravity an unconventional source?
Sep 17, 2009
Replies
4
Views
4K
Angular-linear momentum conservation question
Sep 17, 2009
Replies
4
Views
3K
Explanation of Angular Speed Change
Sep 17, 2009
Replies
5
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12K
Conservation of momentum in an inelastic collision
Sep 17, 2009
Replies
2
Views
7K
Acceleration down a frictionless ramp- what does a y represen in this case?
Sep 17, 2009
Replies
1
Views
3K
Wave eq., two real fields with interaction, wave speed.
Sep 17, 2009
Replies
1
Views
2K
Do the body have potential energy.
Sep 17, 2009
Replies
1
Views
1K
What Does 'I' Represent in the Moment Formula and How Does Tug of War Relate to Physics?
Sep 17, 2009
Replies
2
Views
2K
Fluid under centrifugal force (Basic)
Sep 17, 2009
Replies
6
Views
5K
Conservation of Momentum for Inelastic Collisions
Sep 16, 2009
Replies
1
Views
3K
(1 (+-) v/c) factor in the Lienard Wiechert potentials
Sep 16, 2009
Replies
3
Views
2K
Kinetic friction vs static friction?
Sep 16, 2009
Replies
2
Views
5K
Understanding the Equation for a Falling Leaf: A Simplified Explanation
Sep 15, 2009
Replies
2
Views
8K
A Rotation with Translation Movement is standalone natural phenomenon.
Sep 14, 2009
Replies
1
Views
3K
Ball and chain- (kidding, no chain)
Sep 12, 2009
Replies
2
Views
2K
Independant learning inbetween college and work
Sep 12, 2009
Replies
1
Views
1K
Lifting Weights on a Single Pulley System
Sep 12, 2009
Replies
4
Views
3K
Acceleration has nothing to do with mass, but
Sep 12, 2009
Replies
6
Views
10K
Why doesn't an object fall through the ground when it hits it?
Sep 11, 2009
Replies
9
Views
10K
Hydrogen atom as an example of perpetual motion
Sep 11, 2009
Replies
15
Views
5K
Combined rotational and translational kinetic energy
Sep 11, 2009
Replies
1
Views
2K
Does the earth rotate and undergo revolution with the same speed?
Sep 11, 2009
Replies
8
Views
3K
Usefulness of multipole expansion of skalar potential
Sep 11, 2009
Replies
2
Views
2K
Ferromagnetic Windings in Electric Motors: Can They Operate?
Sep 10, 2009
Replies
1
Views
3K
Metal Ball & Ring: What Happens When Heated?
Sep 10, 2009
Replies
5
Views
5K
Sliding Friction on a Wheel: How Does Static Friction Prevent Motion?
Sep 10, 2009
Replies
2
Views
2K
Protection of car from thndrstrom
Sep 9, 2009
Replies
6
Views
1K
Mathematical description of the valveless pulse jet
Sep 9, 2009
Replies
2
Views
3K
Does Spring Length Affect Its Extension?
Sep 9, 2009
Replies
1
Views
3K
Jumping out of a moving bus (quick question)
Sep 9, 2009
Replies
3
Views
3K
Capaticance of thin spherical ball
Sep 9, 2009
Replies
5
Views
2K
Why do Balloons filled with Air not fall at 9.6m/s/s?
Sep 9, 2009
Replies
4
Views
4K
Help understanding math on inclined plane example
Sep 9, 2009
Replies
2
Views
3K
Magneitic fields can do no work
Sep 8, 2009
Replies
8
Views
2K
Raising Shipwreck with Buoyancy Balloons - Calculations Needed?
Sep 8, 2009
Replies
3
Views
2K
Work done by rolling inverted pendulum system
Sep 8, 2009
Replies
12
Views
4K
How Does Physics Influence Stone Skipping in Water?
Sep 8, 2009
Replies
2
Views
5K
Flow Rate of a Deflation Balloon
Sep 8, 2009
Replies
9
Views
9K
Calculating torque/hp losses from wheel choices
Sep 7, 2009
Replies
6
Views
31K
Is the Coefficient of Static Friction Always Higher than Kinetic Friction?
Sep 7, 2009
Replies
4
Views
3K
Displacement in terms of acceleration and time
Sep 7, 2009
Replies
3
Views
13K
Annoying things in statistical mechanics
Sep 6, 2009
Replies
1
Views
4K
Would you run faster in lower air pressure?
Sep 6, 2009
Replies
12
Views
7K
Can you see stars in South Carolina?
Sep 6, 2009
Replies
7
Views
2K
Transit time of particle in a particle accelerator question
Sep 5, 2009
Replies
4
Views
5K
Unraveling the Mystery of the Speed of Sound
Sep 5, 2009
Replies
5
Views
4K
Understanding Inertial Frames: How to Determine if You're in One
Sep 4, 2009
Replies
29
Views
4K
Understanding the Physics of Elastic Collisions on a 45 Degree Slope
Sep 3, 2009
Replies
3
Views
3K
Non-Headon Collision Vector Representation
Sep 3, 2009
Replies
6
Views
3K
Why is Newton's law of gravitation different for non-spherical objects?
Sep 3, 2009
Replies
6
Views
4K
Calculate Pressure of Air in a Cylinder
Sep 3, 2009
Replies
2
Views
7K
Where is the potential energy?
Sep 3, 2009
Replies
6
Views
2K
Coordinate transformation under rotation
Sep 3, 2009
Replies
5
Views
8K
Change in elctric field & potential
Sep 3, 2009
Replies
1
Views
1K
Can a Silent Object Create a Sonic Boom?
Sep 2, 2009
Replies
3
Views
3K
Gravity & conservation of energy with two bodies
Sep 2, 2009
Replies
5
Views
2K
Field vs Potential: E=-curl of V
Sep 2, 2009
Replies
5
Views
2K
How do you determine the amplitude of a wave exhibiting simple harmonic motion?
Sep 1, 2009
Replies
2
Views
5K
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