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Undergrad Reducing Downward Force of 900kg Soil Container

Apr 19, 2014 · Replies 6 · Apr 19, 2014

Replies: 6

Views: 2K

High School Forces: mass on a string circular motion

Apr 19, 2014 · Replies 2 · Apr 19, 2014

Replies: 2

Views: 2K

Undergrad Vector Properties: Divide by Direction Impossible

Apr 19, 2014 · Replies 3 · Apr 19, 2014

Replies: 3

Views: 2K

Graduate Understanding the Working of Superconductors and Ordinary Conductors - Explained

Apr 18, 2014 · Replies 2 · Apr 19, 2014

Replies: 2

Views: 2K

Undergrad Why is a vacuum sucked toward another object

Apr 18, 2014 · Replies 9 · Apr 19, 2014

Replies: 9

Views: 3K

Graduate Infinitesimal transformations and the Hamiltonian as generator

Apr 17, 2014 · Replies 4 · Apr 18, 2014

Replies: 4

Views: 5K

High School Hooke's law - Natural Extension of Spring

Apr 18, 2014 · Replies 6 · Apr 18, 2014

Replies: 6

Views: 2K

Undergrad Pressure differential and air flow

Apr 16, 2014 · Replies 13 · Apr 18, 2014

Replies: 13

Views: 6K

High School Physics-related disagreement with teacher

Apr 12, 2014 · Replies 18 · Apr 18, 2014

Replies: 18

Views: 2K

Undergrad Work-energy principle and conservative forces

Apr 17, 2014 · Replies 2 · Apr 17, 2014

Replies: 2

Views: 1K

High School Calculating Mass Without Gravitational Force

Apr 17, 2014 · Replies 15 · Apr 17, 2014

Replies: 15

Views: 2K

Undergrad Baseball thrown against a wall

Apr 16, 2014 · Replies 4 · Apr 17, 2014

Replies: 4

Views: 4K

Undergrad Accelerating a micron size particle in an air stream

Apr 17, 2014 · Replies 1 · Apr 17, 2014

Replies: 1

Views: 1K

Graduate Group velocity dispersion and normal, anomalous dispersion?

Apr 17, 2014 · Replies 2 · Apr 17, 2014

Replies: 2

Views: 5K

Undergrad How do I visualise the equations from observation of a spinning wheel

Apr 15, 2014 · Replies 5 · Apr 17, 2014

Replies: 5

Views: 1K

Undergrad Is friction the main factor in determining braking distance?

Apr 17, 2014 · Replies 4 · Apr 17, 2014

Replies: 4

Views: 2K

Graduate I need some information about hydrodynamics

Mar 15, 2014 · Replies 4 · Apr 16, 2014

Replies: 4

Views: 1K

Undergrad Which Water Tank Piston Requires More Force?

Apr 12, 2014 · Replies 6 · Apr 16, 2014

Replies: 6

Views: 3K

High School About the concept of work done (High school student)

Apr 15, 2014 · Replies 3 · Apr 16, 2014

Replies: 3

Views: 1K

Graduate Does a pyroshock force distribute in a system?

Apr 15, 2014 · Replies 1 · Apr 16, 2014

Replies: 1

Views: 1K

Graduate Is a reaction moment/force created in off-center constrained rotation?

Apr 15, 2014 · Replies 6 · Apr 15, 2014

Replies: 6

Views: 5K

Graduate Radial and tangential velocities for Inviscid flow (fluid mechanics)

Apr 14, 2014 · Replies 4 · Apr 15, 2014

Replies: 4

Views: 4K

High School Which Plasma Ball Will Produce Light, Plasma, and Spark?

Apr 13, 2014 · Replies 5 · Apr 15, 2014

Replies: 5

Views: 3K

Undergrad Hydrostatic pressure and consequences of pascal's law

Apr 11, 2014 · Replies 34 · Apr 15, 2014

2

Replies: 34

Views: 8K

Graduate Understanding Torsion of Curve: Normal Unit Vector Explanation

Apr 15, 2014 · Replies 3 · Apr 15, 2014

Replies: 3

Views: 1K

Undergrad What is a pseudo-force and how does it relate to non inertial reference frames?

Apr 14, 2014 · Replies 2 · Apr 14, 2014

Replies: 2

Views: 2K

Undergrad Can someone explain to me work and potential energy and when they are

Apr 14, 2014 · Replies 1 · Apr 14, 2014

Replies: 1

Views: 2K

Undergrad Different units while calculating Acceleration of Rotating Objects

Apr 13, 2014 · Replies 4 · Apr 14, 2014

Replies: 4

Views: 3K

High School If we could put Earth in a weighing machine

Apr 12, 2014 · Replies 10 · Apr 14, 2014

Replies: 10

Views: 2K

Undergrad Formula for Aircraft Propeller Thrust

Sep 23, 2012 · Replies 4 · Apr 13, 2014

Replies: 4

Views: 32K

Graduate Kinetic Moment about the center of gravity

Apr 10, 2014 · Replies 8 · Apr 13, 2014

Replies: 8

Views: 11K

Undergrad Coil Gun: How It Works & Physics Behind It

Apr 12, 2014 · Replies 4 · Apr 13, 2014

Replies: 4

Views: 5K

Undergrad Would The Position of the Center of Mass Change Position?

Apr 12, 2014 · Replies 6 · Apr 13, 2014

Replies: 6

Views: 2K

Undergrad Why is Sin the convention for the harmonic oscillator?

Apr 12, 2014 · Replies 2 · Apr 12, 2014

Replies: 2

Views: 2K

Graduate Why Does Torque Point Perpendicular in Gyroscopic Precession?

Apr 12, 2014 · Replies 3 · Apr 12, 2014

Replies: 3

Views: 2K

Undergrad Emission spectrum lines of hydrogen

Apr 11, 2014 · Replies 2 · Apr 12, 2014

Replies: 2

Views: 2K

Graduate Kinetic energy relative or absolute?

Apr 11, 2014 · Replies 3 · Apr 11, 2014

Replies: 3

Views: 7K

Undergrad Acceleration in Circular Motion

Apr 11, 2014 · Replies 4 · Apr 11, 2014

Replies: 4

Views: 1K

Graduate Standard Deviation of Kinetic Motion

Apr 10, 2014 · Replies 5 · Apr 11, 2014

Replies: 5

Views: 4K

Undergrad Frequency change with velocity change

Apr 10, 2014 · Replies 3 · Apr 10, 2014

Replies: 3

Views: 2K

Graduate Understanding the Relationship between K, kcm, and kint

Apr 10, 2014 · Replies 1 · Apr 10, 2014

Replies: 1

Views: 3K

High School External Torque vs. Torque: What's the Difference?

Apr 8, 2014 · Replies 2 · Apr 10, 2014

Replies: 2

Views: 7K

Undergrad Centripetal force demo dishonesty

Apr 8, 2014 · Replies 43 · Apr 10, 2014

2

Replies: 43

Views: 9K

Undergrad Why doesn't mass of a pendulum effect its time period

Apr 9, 2014 · Replies 4 · Apr 10, 2014

Replies: 4

Views: 5K

Graduate Can Magnets in Equilibrium Defy Energy Conservation Laws?

Apr 10, 2014 · Replies 1 · Apr 10, 2014

Replies: 1

Views: 1K

High School Inertia and static friction confusion

Apr 8, 2014 · Replies 3 · Apr 9, 2014

Replies: 3

Views: 5K

Graduate 3DOF Reentry Trajectory Equations of motion

Apr 10, 2013 · Replies 11 · Apr 9, 2014

Replies: 11

Views: 5K

Undergrad How Does the Decay Constant Influence Water Flow in Exponential Decay Models?

Apr 9, 2014 · Replies 8 · Apr 9, 2014

Replies: 8

Views: 8K

Undergrad Orbital simulation - Calculate object position over time in a 2d plane

Apr 9, 2014 · Replies 1 · Apr 9, 2014

Replies: 1

Views: 2K

Undergrad Inertia of two masses m2 connected to a rod.

Apr 8, 2014 · Replies 8 · Apr 9, 2014

Replies: 8

Views: 2K

Undergrad Assuming a perfect transfer of energy

Apr 9, 2014 · Replies 13 · Apr 9, 2014

Replies: 13

Views: 2K

Graduate EoM for rigid body, wrench and twist help

Apr 8, 2014 · Replies 1 · Apr 9, 2014

Replies: 1

Views: 2K

High School Why Does Water from a Hose Feel Stronger at a Distance?

Apr 6, 2014 · Replies 6 · Apr 9, 2014

Replies: 6

Views: 2K

High School Potential difference in a single battery

Apr 9, 2014 · Replies 1 · Apr 9, 2014

Replies: 1

Views: 2K

Graduate Factors affecting motorcycle grip when turning

Jul 19, 2012 · Replies 11 · Apr 8, 2014

Replies: 11

Views: 9K

Graduate Two rods connected, with a sliding mass attached to a spring.lagrange

Apr 8, 2014 · Replies 1 · Apr 8, 2014

Replies: 1

Views: 5K

Graduate Quantum mechanics and relativity

Apr 8, 2014 · Replies 4 · Apr 8, 2014

Replies: 4

Views: 2K

Graduate Derive conservation of center of mass position

Apr 8, 2014 · Replies 1 · Apr 8, 2014

Replies: 1

Views: 1K

Undergrad Plotting the graph of pendulum period versus length

Apr 8, 2014 · Replies 3 · Apr 8, 2014

Replies: 3

Views: 27K

Undergrad Can Virtual Test Drives Predict Performance of Modified Cars?

Apr 3, 2014 · Replies 6 · Apr 8, 2014

Replies: 6

Views: 2K

Undergrad Cyclotron - relationship between velocity and radius

Feb 14, 2014 · Replies 5 · Apr 8, 2014

Replies: 5

Views: 3K

Undergrad Linear Velocity and Angular Velocity Point of Intersection

Apr 4, 2014 · Replies 7 · Apr 7, 2014

Replies: 7

Views: 3K

Undergrad Why is only half energy stored in an extended wire

Apr 7, 2014 · Replies 6 · Apr 7, 2014

Replies: 6

Views: 2K

Graduate Calculating Water Evaporation from Clay Pots

Apr 7, 2014 · Replies 1 · Apr 7, 2014

Replies: 1

Views: 3K

Undergrad [Help] Calculating impact force

Apr 7, 2014 · Replies 3 · Apr 7, 2014

Replies: 3

Views: 2K

Undergrad How Do Dot and Cross Products Differ in Describing Physical Phenomena?

Apr 4, 2014 · Replies 18 · Apr 7, 2014

Replies: 18

Views: 5K

Graduate What Causes Acceleration in a Collision Under Special Relativity?

Apr 3, 2014 · Replies 10 · Apr 7, 2014

Replies: 10

Views: 2K

Graduate Newton's 2nd law for open mass systems

Mar 31, 2014 · Replies 8 · Apr 7, 2014

Replies: 8

Views: 3K

Undergrad Understanding Roller Pressure: Effect of Angle on Sheave Force Distribution

Apr 7, 2014 · Replies 1 · Apr 7, 2014

Replies: 1

Views: 2K

Graduate Epicyclic motion and precession

Apr 6, 2014 · Replies 1 · Apr 7, 2014

Replies: 1

Views: 1K

Undergrad Hooke's Law: Explaining Why Weight Changes Cause Different Spring Movement

Apr 6, 2014 · Replies 2 · Apr 6, 2014

Replies: 2

Views: 1K

Undergrad What Is the Correct Speed of the Moon at Perigee?

Apr 6, 2014 · Replies 10 · Apr 6, 2014

Replies: 10

Views: 2K

Graduate Energy conservation paradox for constrained mass

Mar 18, 2014 · Replies 54 · Apr 6, 2014

2

Replies: 54

Views: 5K

High School Angular velocity of an object with radius and time

Apr 3, 2014 · Replies 11 · Apr 6, 2014

Replies: 11

Views: 3K

Undergrad What Color is Liquid Carbon at the Atomic Level?

Apr 6, 2014 · Replies 3 · Apr 6, 2014

Replies: 3

Views: 4K

Graduate Equilibrium Points of a System given its Lagrangian

Apr 6, 2014 · Replies 1 · Apr 6, 2014

Replies: 1

Views: 1K

Undergrad Momentum and energy of rebounding balls

Apr 6, 2014 · Replies 4 · Apr 6, 2014

Replies: 4

Views: 3K

Graduate Lagrangian/Hamiltonian problems and find the position

Apr 5, 2014 · Replies 1 · Apr 6, 2014

Replies: 1

Views: 1K

Undergrad Why Does a Ball Rotate When Thrown and What Forces Keep it in the Air?

Apr 5, 2014 · Replies 17 · Apr 5, 2014

Replies: 17

Views: 2K

Graduate What Happens to Fluid at the Narrowest Point of a Funnel?

Apr 4, 2014 · Replies 16 · Apr 5, 2014

Replies: 16

Views: 6K

Undergrad Origin of Tension: Newton's 3rd Law or Electrostatic?

Apr 4, 2014 · Replies 4 · Apr 5, 2014

Replies: 4

Views: 3K

Graduate Mechanics behind laminar motion of rigid body

Apr 5, 2014 · Replies 2 · Apr 5, 2014

Replies: 2

Views: 3K

High School Inverse rotatory water sprinkler

Apr 5, 2014 · Replies 13 · Apr 5, 2014

Replies: 13

Views: 2K

Undergrad Minimum Radius for 2.4GHz RC Car Loop Experiment

Apr 2, 2014 · Replies 12 · Apr 5, 2014

Replies: 12

Views: 6K

High School Parachutist's fall is because of balanced force or unbalanced force?

Apr 5, 2014 · Replies 8 · Apr 5, 2014

Replies: 8

Views: 7K

Undergrad Coverting Simple Harmonic Motion Equation to a Rotational Model

Apr 3, 2014 · Replies 1 · Apr 5, 2014

Replies: 1

Views: 2K

Undergrad Constant momentum of an accelerated body

Apr 3, 2014 · Replies 8 · Apr 5, 2014

Replies: 8

Views: 2K

Undergrad The Collision of Rocks - Momentum Impact

Apr 3, 2014 · Replies 16 · Apr 4, 2014

Replies: 16

Views: 3K

Graduate Calculating time to arbitrary points of distance with initial velocity

Apr 4, 2014 · Replies 2 · Apr 4, 2014

Replies: 2

Views: 2K

Undergrad How force works on two strings connected by a mass

Apr 4, 2014 · Replies 2 · Apr 4, 2014

Replies: 2

Views: 1K

Undergrad How Does the Jacobian Matrix Impact Collision Response in Physics Engines?

Apr 3, 2014 · Replies 5 · Apr 4, 2014

Replies: 5

Views: 4K

High School HELP How much weight does my water rocket need?

Apr 3, 2014 · Replies 3 · Apr 4, 2014

Replies: 3

Views: 3K

Undergrad Calculating the angle using angular acceleration

Apr 2, 2014 · Replies 4 · Apr 4, 2014

Replies: 4

Views: 3K

Undergrad Aerodynamics of a concrete glider vs a brick (MythBusters)

Apr 2, 2014 · Replies 14 · Apr 4, 2014

Replies: 14

Views: 6K

Does anyone know any childern's books about Newtons Laws or Catapults?

Apr 4, 2014 · Replies 1 · Apr 4, 2014

Replies: 1

Views: 2K

Graduate Field Transformations work forwards but not backwards?

Apr 3, 2014 · Replies 3 · Apr 3, 2014

Replies: 3

Views: 1K

Can You Master the Art of Throwing a Spinning Card?

Apr 3, 2014 · Replies 1 · Apr 3, 2014

Replies: 1

Views: 1K

Graduate Navier-stokes derivation question

Apr 2, 2014 · Replies 6 · Apr 2, 2014

Replies: 6

Views: 2K

Undergrad Equal tension on rope in a pulley system?

Apr 2, 2014 · Replies 3 · Apr 2, 2014

Replies: 3

Views: 7K

Undergrad Calculating Motion Energy: Can a Falling Object Generate 435kW in 2.4 Seconds?

Apr 2, 2014 · Replies 8 · Apr 2, 2014

Replies: 8

Views: 2K

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