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Undergrad Piece of metal being carried through an inductor

Apr 12, 2012 · Replies 3 · Apr 16, 2012

Replies: 3

Views: 3K

Undergrad Physical Interpretation of Reynolds Number

Apr 15, 2012 · Replies 2 · Apr 16, 2012

Replies: 2

Views: 9K

Undergrad How can I use a wet sponge to protect an egg from impact?

Apr 14, 2012 · Replies 9 · Apr 15, 2012

Replies: 9

Views: 40K

Can Soundwaves Be Trapped in the Human Body?

Apr 15, 2012 · Replies 1 · Apr 15, 2012

Replies: 1

Views: 2K

High School Why Does Earth Rotate and What Role Does the Moon Play?

Apr 15, 2012 · Replies 6 · Apr 15, 2012

Replies: 6

Views: 4K

Undergrad Circulation around a plane wing.

Apr 11, 2012 · Replies 2 · Apr 15, 2012

Replies: 2

Views: 3K

Graduate Under what conditions does L=Iw hold?

Apr 14, 2012 · Replies 4 · Apr 15, 2012

Replies: 4

Views: 6K

High School 'Kinetic movement': does that make sense?

Apr 14, 2012 · Replies 2 · Apr 15, 2012

Replies: 2

Views: 3K

Undergrad How does a net torque of 0 make a board snap?

Apr 15, 2012 · Replies 7 · Apr 15, 2012

Replies: 7

Views: 2K

Graduate Ground impact force of a vehicle rolling over

Apr 15, 2012 · Replies 2 · Apr 15, 2012

Replies: 2

Views: 4K

Undergrad Why the fluid pressure does not affected by the object submerged?

Apr 10, 2012 · Replies 8 · Apr 15, 2012

Replies: 8

Views: 5K

Undergrad Pressure and transmission of pressure in liquids

Apr 13, 2012 · Replies 20 · Apr 15, 2012

Replies: 20

Views: 6K

Undergrad Difficult Problems in Classical Mechanics

Apr 13, 2012 · Replies 4 · Apr 15, 2012

Replies: 4

Views: 10K

Undergrad Differential Steering to steer a tank

Apr 13, 2012 · Replies 11 · Apr 14, 2012

Replies: 11

Views: 6K

Undergrad Bourmoulli's Principle: Explaining a Hypothetical Scenario

Apr 13, 2012 · Replies 9 · Apr 14, 2012

Replies: 9

Views: 3K

Graduate Retarded Central Force Problem in Classical Physics

Apr 14, 2012 · Replies 1 · Apr 14, 2012

Replies: 1

Views: 2K

High School Why is is easier to push a heavy load on wheels with a short lever

Apr 13, 2012 · Replies 3 · Apr 14, 2012

Replies: 3

Views: 2K

Undergrad Cube R network resistor calculation

Apr 14, 2012 · Replies 1 · Apr 14, 2012

Replies: 1

Views: 3K

High School What causes liquid to rise in a capillary tube?

Apr 14, 2012 · Replies 1 · Apr 14, 2012

Replies: 1

Views: 3K

Graduate What is the relationship between salinity and the speed of sound in water?

Apr 14, 2012 · Replies 1 · Apr 14, 2012

Replies: 1

Views: 19K

Undergrad Calculating impact force of a block accelerated by a spring

Apr 11, 2012 · Replies 9 · Apr 14, 2012

Replies: 9

Views: 8K

Undergrad How to calculate critical speed in circular motion?

Apr 13, 2012 · Replies 3 · Apr 14, 2012

Replies: 3

Views: 25K

Undergrad What is the difference between centripetal and angular acceleration?

Apr 13, 2012 · Replies 5 · Apr 13, 2012

Replies: 5

Views: 42K

Undergrad Going uphill with no friction (vacuum)

Apr 13, 2012 · Replies 1 · Apr 13, 2012

Replies: 1

Views: 2K

High School What happens when net torque is zero?

Apr 13, 2012 · Replies 1 · Apr 13, 2012

Replies: 1

Views: 15K

Graduate Differential equation for motion of a pendulum

Apr 13, 2012 · Replies 1 · Apr 13, 2012

Replies: 1

Views: 3K

Undergrad Inertial adn non-inertial frames

Apr 13, 2012 · Replies 3 · Apr 13, 2012

Replies: 3

Views: 2K

High School Work=Force*Stretch: Why is this?

Apr 13, 2012 · Replies 2 · Apr 13, 2012

Replies: 2

Views: 2K

Undergrad COnstant centripetal force to move in a circle?

Mar 28, 2012 · Replies 13 · Apr 13, 2012

Replies: 13

Views: 4K

Undergrad Relationship between differential pressure and airflow through a filter

Apr 12, 2012 · Replies 2 · Apr 13, 2012

Replies: 2

Views: 5K

Graduate Deriving an equation for orbital period

Apr 11, 2012 · Replies 7 · Apr 13, 2012

Replies: 7

Views: 11K

Graduate Peter Ponders Ping Pong Physics (conservation of angular momentum )

Apr 10, 2012 · Replies 10 · Apr 12, 2012

Replies: 10

Views: 7K

Undergrad Plane's wings and Bernoulli's equation

Apr 10, 2012 · Replies 17 · Apr 12, 2012

Replies: 17

Views: 8K

Undergrad Helicopters and Angular Momentum

Apr 12, 2012 · Replies 5 · Apr 12, 2012

Replies: 5

Views: 3K

Undergrad Determining the total distance a solid sphere will roll.

Apr 12, 2012 · Replies 4 · Apr 12, 2012

Replies: 4

Views: 2K

Undergrad Distinction between shockwaves and sound waves

Apr 10, 2012 · Replies 10 · Apr 12, 2012

Replies: 10

Views: 17K

Undergrad Potential energy harmonic oscillator

Apr 4, 2012 · Replies 8 · Apr 12, 2012

Replies: 8

Views: 3K

Undergrad Two scenarios different energy requirement?

Apr 11, 2012 · Replies 12 · Apr 12, 2012

Replies: 12

Views: 2K

Undergrad Model rocket question (MY LAST RESORT) (and this is NOT a homework question)

Apr 10, 2012 · Replies 6 · Apr 12, 2012

Replies: 6

Views: 4K

High School What determines a bullet's grouping?

Apr 10, 2012 · Replies 3 · Apr 12, 2012

Replies: 3

Views: 2K

Graduate Rainfall drop velocity from a given height (not terminal)

Apr 4, 2012 · Replies 3 · Apr 12, 2012

Replies: 3

Views: 3K

Graduate Shallow water flow - equation system unstable

Apr 12, 2012 · Replies 1 · Apr 12, 2012

Replies: 1

Views: 3K

Undergrad Pushing a cylinder along a surface with friction.

Apr 11, 2012 · Replies 4 · Apr 12, 2012

Replies: 4

Views: 4K

Graduate I pressure constant over time?

Apr 11, 2012 · Replies 5 · Apr 11, 2012

Replies: 5

Views: 2K

Graduate Microcantilever, different resonance modes

Apr 6, 2012 · Replies 2 · Apr 11, 2012

Replies: 2

Views: 2K

Graduate Wave speed as a function of compression?

Apr 9, 2012 · Replies 3 · Apr 11, 2012

Replies: 3

Views: 2K

Undergrad Understanding Gyroscopic Precession

Apr 9, 2012 · Replies 7 · Apr 11, 2012

Replies: 7

Views: 8K

Graduate Continuous Inelastic Collisions

Apr 8, 2012 · Replies 3 · Apr 11, 2012

Replies: 3

Views: 2K

Undergrad Why is jerk the change in acceleration over time?

Apr 10, 2012 · Replies 14 · Apr 11, 2012

Replies: 14

Views: 12K

Undergrad Special car jack stand for sloped grades

May 4, 2011 · Replies 8 · Apr 11, 2012

Replies: 8

Views: 12K

Graduate Pressure and torque in water without external gravity

Apr 11, 2012 · Replies 5 · Apr 11, 2012

Replies: 5

Views: 2K

Graduate How Do Grains Gravitate Toward Each Other in Zero-G?

Apr 10, 2012 · Replies 3 · Apr 11, 2012

Replies: 3

Views: 3K

High School Direction of displacement,velocity and acceleration in an oscillation

Apr 9, 2012 · Replies 5 · Apr 11, 2012

Replies: 5

Views: 3K

Undergrad Why Is Force Defined as the Negative Gradient of Potential Energy?

Apr 10, 2012 · Replies 3 · Apr 10, 2012

Replies: 3

Views: 4K

Graduate Understanding Forced Harmonic Motion in a Pendulum System

Apr 5, 2012 · Replies 8 · Apr 10, 2012

Replies: 8

Views: 4K

High School Why is gravitational potential energy relative to the height you set?

Apr 10, 2012 · Replies 1 · Apr 10, 2012

Replies: 1

Views: 5K

Undergrad Myth Or Fact? - Wind drag on flaming arrows

Apr 9, 2012 · Replies 6 · Apr 10, 2012

Replies: 6

Views: 3K

Undergrad Rod rotational inertia - axis at end of rod

Apr 8, 2012 · Replies 4 · Apr 10, 2012

Replies: 4

Views: 3K

Undergrad Will a venturi work if the pressure behind it is

Apr 10, 2012 · Replies 1 · Apr 10, 2012

Replies: 1

Views: 2K

Undergrad How to Determine if Friction Will Act?

Apr 8, 2012 · Replies 6 · Apr 9, 2012

Replies: 6

Views: 3K

Graduate Virtual work and kinetic energy

Apr 8, 2012 · Replies 17 · Apr 9, 2012

Replies: 17

Views: 5K

Graduate Translating scalar torque quantities to their vector analogues (RE: Dipoles)

Apr 8, 2012 · Replies 1 · Apr 9, 2012

Replies: 1

Views: 2K

High School Does weight affect speed on a water slide?

Jul 26, 2011 · Replies 19 · Apr 9, 2012

Replies: 19

Views: 39K

Graduate Problem in understanding model for rigid body

Apr 8, 2012 · Replies 3 · Apr 9, 2012

Replies: 3

Views: 2K

Undergrad Understanding Equal Load Distribution for Rowing Team: Help Needed

Apr 8, 2012 · Replies 9 · Apr 9, 2012

Replies: 9

Views: 6K

High School Think of a device that can transfer a payload to a tether

Mar 7, 2012 · Replies 13 · Apr 9, 2012

Replies: 13

Views: 3K

Undergrad Physics: Expansion at constant pressure

Apr 8, 2012 · Replies 4 · Apr 9, 2012

Replies: 4

Views: 3K

Undergrad What is the role of tensors in classical mechanics?

Apr 8, 2012 · Replies 1 · Apr 8, 2012

Replies: 1

Views: 4K

Graduate Quadratic Potential: What Does It Mean?

Apr 6, 2012 · Replies 4 · Apr 8, 2012

Replies: 4

Views: 4K

High School Confused with the Archimedes' Principle

Apr 4, 2012 · Replies 8 · Apr 8, 2012

Replies: 8

Views: 5K

Graduate Is Ek0-Ek1 Greater Than Zero?

Apr 7, 2012 · Replies 12 · Apr 8, 2012

Replies: 12

Views: 3K

Undergrad Is This a Physical Pendulum?

Apr 8, 2012 · Replies 1 · Apr 8, 2012

Replies: 1

Views: 2K

Undergrad Is water still water after it evaporates or H and O?

Apr 8, 2012 · Replies 1 · Apr 8, 2012

Replies: 1

Views: 2K

Graduate Dive effect of sliding objects

Apr 7, 2012 · Replies 4 · Apr 8, 2012

Replies: 4

Views: 3K

Undergrad Simple Barometers & Air Pressure

Apr 7, 2012 · Replies 1 · Apr 8, 2012

Replies: 1

Views: 3K

High School Can You Explain the Effects of Tensional Force on Objects?

Apr 7, 2012 · Replies 4 · Apr 7, 2012

Replies: 4

Views: 2K

Undergrad Water Flow, Mass Flow through 5 Gallon Jug

Apr 6, 2012 · Replies 2 · Apr 7, 2012

Replies: 2

Views: 3K

Graduate Centrifugal Force Explained: Inertial vs Rotating Frames

Apr 6, 2012 · Replies 18 · Apr 7, 2012

Replies: 18

Views: 5K

Undergrad Measuring Color Underwater: Techniques and Challenges

Mar 26, 2012 · Replies 10 · Apr 7, 2012

Replies: 10

Views: 3K

High School What is the general formula for gravity acting on an aircraft?

Apr 6, 2012 · Replies 14 · Apr 7, 2012

Replies: 14

Views: 3K

Undergrad Net Force on a Spinning Ball Attached to a String Question

Apr 7, 2012 · Replies 3 · Apr 7, 2012

Replies: 3

Views: 8K

Undergrad How does the wind organ in this youtube video work?

Apr 5, 2012 · Replies 1 · Apr 7, 2012

Replies: 1

Views: 2K

Undergrad Some Good Exercise Book For Classical Mechanics.

Mar 31, 2012 · Replies 2 · Apr 7, 2012

Replies: 2

Views: 6K

Graduate Help Deriving Hydrostatic Equilibrium

Apr 2, 2012 · Replies 3 · Apr 6, 2012

Replies: 3

Views: 3K

Graduate Impulse/force in pounds for the time frame

Jan 2, 2012 · Replies 350 · Apr 6, 2012

12

Replies: 350

Views: 50K

Graduate How does rotation affect weight changes?

Apr 2, 2012 · Replies 23 · Apr 6, 2012

Replies: 23

Views: 4K

Graduate Deriving an equation for Jetpack motion, Kinetic Energy

Apr 5, 2012 · Replies 4 · Apr 6, 2012

Replies: 4

Views: 4K

Undergrad Fluid Mechanics, Depth, Pressure

Apr 6, 2012 · Replies 8 · Apr 6, 2012

Replies: 8

Views: 3K

Undergrad How to chemically Accelerate Evaporation?

Apr 5, 2012 · Replies 6 · Apr 6, 2012

Replies: 6

Views: 4K

Undergrad How Do Microphones Accurately Capture Sounds?

Apr 5, 2012 · Replies 3 · Apr 6, 2012

Replies: 3

Views: 3K

Graduate Finding the Length of a Skyhook Satellite

Apr 5, 2012 · Replies 16 · Apr 6, 2012

Replies: 16

Views: 4K

High School Gyroscopes-Specific Questions by an interested High Schooler

Apr 4, 2012 · Replies 1 · Apr 6, 2012

Replies: 1

Views: 2K

Graduate Recoil Buffering Physics Explained

Apr 2, 2012 · Replies 7 · Apr 6, 2012

Replies: 7

Views: 3K

Undergrad What happens to the angular momentum?

Apr 5, 2012 · Replies 2 · Apr 5, 2012

Replies: 2

Views: 2K

Undergrad What is the true value of the water triple point temperature?

Apr 5, 2012 · Replies 4 · Apr 5, 2012

Replies: 4

Views: 3K

Undergrad How Can Understanding Physics Enhance Martial Arts Techniques?

Mar 26, 2007 · Replies 22 · Apr 5, 2012

Replies: 22

Views: 19K

Undergrad The mechanics of gyroplane lift.

Apr 3, 2012 · Replies 13 · Apr 5, 2012

Replies: 13

Views: 15K

Undergrad Force on surface with quantification

Apr 5, 2012 · Replies 6 · Apr 5, 2012

Replies: 6

Views: 2K

Graduate Why are Quantum mechanics and General relativity incompatible?

Apr 3, 2012 · Replies 11 · Apr 5, 2012

Replies: 11

Views: 5K

Undergrad Resultant vectors in cable and beams

Mar 20, 2012 · Replies 13 · Apr 5, 2012

Replies: 13

Views: 3K

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