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Undergrad Is the popular 4x4 winching strategy of a single block correct?

Apr 6, 2015 · Replies 3 · Apr 7, 2015

Replies: 3

Views: 2K

Undergrad Low tech telecommunications (water)

Apr 5, 2015 · Replies 12 · Apr 6, 2015

Replies: 12

Views: 2K

High School Why rolling friction is small than sliding friction?

Apr 6, 2015 · Replies 1 · Apr 6, 2015

Replies: 1

Views: 1K

Graduate Can group velocity be greater than phase velocity?

Apr 6, 2015 · Replies 2 · Apr 6, 2015

Replies: 2

Views: 7K

Undergrad Is 'Carrying' the Right Term for Describing Kinetic Energy in Moving Objects?

Mar 31, 2015 · Replies 11 · Apr 6, 2015

Replies: 11

Views: 2K

Undergrad Mechanical Water Waves: Understanding Behavior

Apr 2, 2015 · Replies 1 · Apr 6, 2015

Replies: 1

Views: 2K

High School Dynamic soaring update - 505 mph

Apr 5, 2015 · Replies 3 · Apr 6, 2015

Replies: 3

Views: 2K

High School Is the force that keeps the Earth spinning

Apr 5, 2015 · Replies 12 · Apr 6, 2015

Replies: 12

Views: 3K

Undergrad Modeling Deceleration of Object Towed in Water

Apr 5, 2015 · Replies 3 · Apr 6, 2015

Replies: 3

Views: 6K

Undergrad Rolling in a cone, normal force

Apr 6, 2015 · Replies 3 · Apr 6, 2015

Replies: 3

Views: 2K

High School Why Is "P" Used in Momentum Formula (p=mv)?

Apr 5, 2015 · Replies 1 · Apr 5, 2015

Replies: 1

Views: 3K

Undergrad Firefigting nozzle pressure and reaction

Apr 5, 2015 · Replies 1 · Apr 5, 2015

Replies: 1

Views: 3K

Undergrad Confused by different definitions of position

Apr 5, 2015 · Replies 4 · Apr 5, 2015

Replies: 4

Views: 2K

High School Limiting friction Vs static friction

Apr 5, 2015 · Replies 5 · Apr 5, 2015

Replies: 5

Views: 15K

Undergrad Spring pendulum, Kinetic Energy

Apr 4, 2015 · Replies 3 · Apr 5, 2015

Replies: 3

Views: 2K

Undergrad Calculating Velocity of Center of Mass: Exploring an Example with Given Masses

Apr 5, 2015 · Replies 4 · Apr 5, 2015

Replies: 4

Views: 2K

Undergrad Work done by conservative forces

Apr 5, 2015 · Replies 1 · Apr 5, 2015

Replies: 1

Views: 2K

Undergrad Going from centre of mass to ground frame

Apr 5, 2015 · Replies 1 · Apr 5, 2015

Replies: 1

Views: 946

High School Head on Collision: Conservation of Momentum Explained

Apr 3, 2015 · Replies 37 · Apr 5, 2015

2

Replies: 37

Views: 4K

Graduate Hamiltonian Method: Getting Final Equation of Motion

Apr 4, 2015 · Replies 1 · Apr 5, 2015

Replies: 1

Views: 2K

Graduate Chaos Theory and the Prolate Spheroid

Apr 2, 2015 · Replies 7 · Apr 4, 2015

Replies: 7

Views: 2K

Graduate Question about "bound systems"

Apr 2, 2015 · Replies 4 · Apr 3, 2015

Replies: 4

Views: 1K

Undergrad Rotational Dynamics And Collision

Apr 3, 2015 · Replies 1 · Apr 3, 2015

Replies: 1

Views: 1K

Undergrad Direction of pressure in a Fluid

Mar 22, 2015 · Replies 28 · Apr 2, 2015

Replies: 28

Views: 4K

Undergrad Calculating the trajectory of a robot

Apr 2, 2015 · Replies 1 · Apr 2, 2015

Replies: 1

Views: 2K

Graduate Kinetic Energy of Double Compound Pendulum and Parallel Axis

Apr 2, 2015 · Replies 2 · Apr 2, 2015

Replies: 2

Views: 2K

High School How do I correctly derive the formula d = vt + 1/2 at^2?

Apr 1, 2015 · Replies 12 · Apr 2, 2015

Replies: 12

Views: 43K

Undergrad How to calculate the speed of a satellite around the sun.

Apr 2, 2015 · Replies 6 · Apr 2, 2015

Replies: 6

Views: 2K

Undergrad Drift velocity: Why not 1/2 *t*(eE/m)

Apr 2, 2015 · Replies 7 · Apr 2, 2015

Replies: 7

Views: 5K

High School Why do moving balls and bicycles eventually come to a stop?

Apr 2, 2015 · Replies 7 · Apr 2, 2015

Replies: 7

Views: 13K

Graduate How Does Energy Conservation Apply to Weight Holding and Muscle Fatigue?

Apr 1, 2015 · Replies 4 · Apr 2, 2015

Replies: 4

Views: 2K

Graduate Zero-Momentum Frame Velocities

Apr 1, 2015 · Replies 1 · Apr 2, 2015

Replies: 1

Views: 4K

Undergrad Derivative of displacement with respect to time

Mar 31, 2015 · Replies 13 · Apr 2, 2015

Replies: 13

Views: 9K

Undergrad Can centripetal/centrifugal force raise itself

Apr 1, 2015 · Replies 2 · Apr 2, 2015

Replies: 2

Views: 2K

Undergrad Why wouldn't the disc/paper rotate?

Mar 31, 2015 · Replies 14 · Apr 2, 2015

Replies: 14

Views: 2K

Undergrad Equation of Continuity: Leaking Bucket & Minus Sign

Mar 31, 2015 · Replies 13 · Apr 2, 2015

Replies: 13

Views: 3K

Undergrad How Does a Surface Piercing (Boat) Propeller Work?

Mar 13, 2013 · Replies 7 · Apr 1, 2015

Replies: 7

Views: 16K

High School Ionize Hydrogen Gas: Can Heat Ionize It?

Mar 30, 2015 · Replies 18 · Apr 1, 2015

Replies: 18

Views: 5K

Graduate Spherical Harmonics: Degree l & Order m Structure & Variation

Mar 26, 2015 · Replies 11 · Apr 1, 2015

Replies: 11

Views: 4K

Undergrad Is Impact Force Equal to G-Force in Newtons?

Apr 1, 2015 · Replies 19 · Apr 1, 2015

Replies: 19

Views: 7K

Undergrad Centrifugal force in space Motor with axle and wheight

Apr 1, 2015 · Replies 4 · Apr 1, 2015

Replies: 4

Views: 2K

High School Is the friction "reaction force"?

Mar 31, 2015 · Replies 2 · Apr 1, 2015

Replies: 2

Views: 3K

High School What is the direction of tension force in a rope?

Apr 1, 2015 · Replies 4 · Apr 1, 2015

Replies: 4

Views: 24K

Undergrad Force, Horsepower and Acceleration logic?

Mar 30, 2015 · Replies 8 · Apr 1, 2015

Replies: 8

Views: 7K

Graduate How Do Velocity and Pressure Relate in Linear Sound Wave Equations?

Apr 1, 2015 · Replies 5 · Apr 1, 2015

Replies: 5

Views: 4K

Graduate Kinetic Theory of Gas: F=-2mv/2L/V

Apr 1, 2015 · Replies 10 · Apr 1, 2015

Replies: 10

Views: 2K

Graduate Path of the end of a string wrapping around cylinder

Mar 30, 2015 · Replies 5 · Mar 31, 2015

Replies: 5

Views: 4K

Graduate Confirming if Friction is a Scalar: Examining the Work Energy Theorem

Mar 28, 2015 · Replies 9 · Mar 31, 2015

Replies: 9

Views: 5K

Undergrad How does the placement of sensors affect stress in a squeeze ball?

Mar 30, 2015 · Replies 5 · Mar 31, 2015

Replies: 5

Views: 3K

Graduate Position of centre of mass in semicircular disc

Mar 31, 2015 · Replies 15 · Mar 31, 2015

Replies: 15

Views: 58K

High School Is Newtonian gravity still relevant in modern physics?

Mar 30, 2015 · Replies 9 · Mar 31, 2015

Replies: 9

Views: 2K

Graduate Integrating Net Force: Limits on LHS?

Mar 28, 2015 · Replies 9 · Mar 31, 2015

Replies: 9

Views: 2K

Graduate Motion due to gravity without neglecting varying distance

Mar 30, 2015 · Replies 4 · Mar 30, 2015

Replies: 4

Views: 1K

Undergrad Why does gravity decrease at the equator ?

Mar 30, 2015 · Replies 15 · Mar 30, 2015

Replies: 15

Views: 3K

Undergrad Raining effect on pressure in water pipes

Mar 28, 2015 · Replies 3 · Mar 30, 2015

Replies: 3

Views: 2K

Graduate Newton's argument, gravitational force inside a sphere

Mar 28, 2015 · Replies 7 · Mar 30, 2015

Replies: 7

Views: 4K

Undergrad In what ways do high altitudes affect speed of sound?

Mar 29, 2015 · Replies 3 · Mar 29, 2015

Replies: 3

Views: 4K

High School Angular Displacement: 2π Radians

Mar 29, 2015 · Replies 1 · Mar 29, 2015

Replies: 1

Views: 2K

Undergrad Understanding the Concept of Work: Displacement of Force or Center of Mass?

Mar 29, 2015 · Replies 6 · Mar 29, 2015

Replies: 6

Views: 2K

High School Pressure in a container placed on a reduced area?

Mar 29, 2015 · Replies 2 · Mar 29, 2015

Replies: 2

Views: 1K

Graduate What is Advective Acceleration in Fluid Mechanics?

Mar 29, 2015 · Replies 1 · Mar 29, 2015

Replies: 1

Views: 2K

Graduate Why Does the Reduced Mass Concept Yield a Positive Total Energy?

Mar 29, 2015 · Replies 5 · Mar 29, 2015

Replies: 5

Views: 3K

Graduate Independence of Energy and Momentum Conservation

Mar 21, 2015 · Replies 30 · Mar 29, 2015

2

Replies: 30

Views: 5K

Undergrad Position function and its derivatives

Mar 28, 2015 · Replies 1 · Mar 28, 2015

Replies: 1

Views: 1K

High School A water fountain that seems to defy gravity

Sep 17, 2013 · Replies 11 · Mar 28, 2015

Replies: 11

Views: 6K

Graduate Galilean Relativity and Newton's Laws

Mar 28, 2015 · Replies 2 · Mar 28, 2015

Replies: 2

Views: 2K

Undergrad Apply impulse to a wheel creates constant acceleration?

Mar 21, 2015 · Replies 10 · Mar 28, 2015

Replies: 10

Views: 2K

Graduate Rotational EOM's with non diagonal inertia tensor

Mar 27, 2015 · Replies 1 · Mar 28, 2015

Replies: 1

Views: 2K

Graduate Non-ideal solution and vapour pressure

Mar 15, 2015 · Replies 3 · Mar 28, 2015

Replies: 3

Views: 2K

Undergrad How can I calculate velocity of planet using orbit time?

Mar 28, 2015 · Replies 1 · Mar 28, 2015

Replies: 1

Views: 2K

High School Same Mass Objects Dropped: Same Time?

Mar 27, 2015 · Replies 7 · Mar 27, 2015

Replies: 7

Views: 2K

High School The relationship between brightness of bulb and power rating

Mar 26, 2015 · Replies 14 · Mar 27, 2015

Replies: 14

Views: 7K

Undergrad Particle acceleration and eV's question from a newbie

Mar 25, 2015 · Replies 3 · Mar 27, 2015

Replies: 3

Views: 2K

Graduate Gyrocompass motion: Zero torque in the free axis

Mar 26, 2015 · Replies 5 · Mar 27, 2015

Replies: 5

Views: 2K

Undergrad Atmospheric humidity for water production.

Mar 26, 2015 · Replies 3 · Mar 26, 2015

Replies: 3

Views: 3K

High School Can spinning motion be converted into linear motion?

Mar 25, 2015 · Replies 7 · Mar 26, 2015

Replies: 7

Views: 2K

Undergrad How can I measure rotational speed of a golf ball and projectiles?

Mar 25, 2015 · Replies 12 · Mar 26, 2015

Replies: 12

Views: 4K

Graduate Using undetermined multipliers in Lagrangian Mechanics

Mar 25, 2015 · Replies 1 · Mar 26, 2015

Replies: 1

Views: 2K

Undergrad Massless string pulled by a force

Mar 25, 2015 · Replies 31 · Mar 26, 2015

2

Replies: 31

Views: 4K

Undergrad Bernoulli's principle and work energy theorem

Mar 25, 2015 · Replies 7 · Mar 25, 2015

Replies: 7

Views: 3K

Undergrad Inertial vs Gravitational Mass

Mar 25, 2015 · Replies 2 · Mar 25, 2015

Replies: 2

Views: 2K

High School Does Force Direction Always Decrease the Potential Energy?

Mar 25, 2015 · Replies 3 · Mar 25, 2015

Replies: 3

Views: 1K

Graduate Point of application of generalized forces of constraint

Mar 25, 2015 · Replies 2 · Mar 25, 2015

Replies: 2

Views: 1K

Graduate Eigenvectors of Inertia tensor

Mar 12, 2015 · Replies 5 · Mar 25, 2015

Replies: 5

Views: 3K

Undergrad Toppling Effect: What's the Best Procedure?

Mar 25, 2015 · Replies 1 · Mar 25, 2015

Replies: 1

Views: 3K

Graduate Hookes law for stress and strain

Mar 24, 2015 · Replies 3 · Mar 25, 2015

Replies: 3

Views: 2K

Undergrad Is force relative like motion?

Mar 25, 2015 · Replies 1 · Mar 25, 2015

Replies: 1

Views: 2K

High School Normal Contact Force Explained: What My Teacher Says

Mar 24, 2015 · Replies 10 · Mar 25, 2015

Replies: 10

Views: 3K

Undergrad Friction Questions: How Does a Car Turn?

Mar 24, 2015 · Replies 9 · Mar 25, 2015

Replies: 9

Views: 2K

Undergrad Tensile stress, and youngs modulus.

Oct 26, 2014 · Replies 9 · Mar 25, 2015

Replies: 9

Views: 6K

Undergrad SHM: Equation relating acceleration and displacement

Mar 24, 2015 · Replies 4 · Mar 25, 2015

Replies: 4

Views: 2K

Undergrad Work done when point of application of force remains fixed

Mar 24, 2015 · Replies 18 · Mar 24, 2015

Replies: 18

Views: 5K

Undergrad Centrifugal Force: Earth Rotation & Its Effects

Mar 21, 2015 · Replies 13 · Mar 24, 2015

Replies: 13

Views: 2K

Undergrad Cross products vanish Classical Mechanics

Mar 24, 2015 · Replies 3 · Mar 24, 2015

Replies: 3

Views: 1K

Graduate Orthohydrogen to Parahydrogen: What particle?

Mar 22, 2015 · Replies 2 · Mar 23, 2015

Replies: 2

Views: 1K

Undergrad AC Generator Design: How to Increase Output Safely

Mar 23, 2015 · Replies 2 · Mar 23, 2015

Replies: 2

Views: 2K

Undergrad Spin mass in a vacuum, efficiency?

Mar 23, 2015 · Replies 1 · Mar 23, 2015

Replies: 1

Views: 1K

Graduate Material Derivative (Convective Derivative Operator)

Mar 15, 2015 · Replies 4 · Mar 22, 2015

Replies: 4

Views: 4K

High School Why do chemical substances affect our senses differently?

Mar 12, 2015 · Replies 24 · Mar 22, 2015

Replies: 24

Views: 4K

Undergrad Turbine: Straight or Rotational airflow?

Jan 13, 2015 · Replies 16 · Mar 21, 2015

Replies: 16

Views: 4K

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