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Undergrad How can I solve catenary problems?

May 14, 2019 · Replies 1 · May 14, 2019

Replies: 1

Views: 2K

Undergrad Mass conservation in a conical tank

Apr 28, 2011 · Replies 1 · May 14, 2019

Replies: 1

Views: 3K

Undergrad How Long to Fill Tank B from Tank A Using a 100mm Pipe?

Apr 2, 2010 · Replies 1 · May 14, 2019

Replies: 1

Views: 8K

Undergrad Help finding data for specific volume of ethanol in a water mixture?

Mar 19, 2012 · Replies 1 · May 14, 2019

Replies: 1

Views: 3K

Graduate Researching ball falling into fluids

Nov 26, 2008 · Replies 1 · May 14, 2019

Replies: 1

Views: 2K

Graduate Combination of cartesian and cylindrical coordinate system

Nov 30, 2011 · Replies 1 · May 14, 2019

Replies: 1

Views: 2K

Undergrad Can internal pressure be equated to gas flow rate?

Nov 24, 2011 · Replies 1 · May 14, 2019

Replies: 1

Views: 3K

Undergrad How Does Vorticity Affect the Rolling Motion of Soup Cans?

Sep 9, 2009 · Replies 1 · May 14, 2019

Replies: 1

Views: 3K

Undergrad Relationship between Flow Rate and Distance of Water Droplet Travel in Air

Feb 20, 2013 · Replies 1 · May 14, 2019

Replies: 1

Views: 3K

Undergrad How Do I Calculate Water Flow in Custom-Designed Info Desks?

Dec 10, 2008 · Replies 1 · May 14, 2019

Replies: 1

Views: 3K

Undergrad Fluid viscosity in a can and tendency to roll

Sep 14, 2009 · Replies 1 · May 14, 2019

Replies: 1

Views: 3K

Undergrad How Much Water Can a Weak Spherical Tank Hold Safely?

Sep 10, 2010 · Replies 1 · May 14, 2019

Replies: 1

Views: 3K

Undergrad How Does Room Temperature and Humidity Affect Water Evaporation Rates?

Jan 24, 2011 · Replies 1 · May 14, 2019

Replies: 1

Views: 5K

High School Attitude Control Gyroscopes on Spaceships

Dec 20, 2017 · Replies 19 · May 13, 2019

Replies: 19

Views: 4K

Undergrad Hooke's law with a bungee jump

Nov 4, 2003 · Replies 1 · May 13, 2019

Replies: 1

Views: 7K

Undergrad Calculating Hydrogen Mass Storage in Compressed Vessels

May 13, 2019 · Replies 3 · May 13, 2019

Replies: 3

Views: 2K

Undergrad Relationship between the Volume of a balloon and the time it takes to deflate

Apr 23, 2019 · Replies 5 · May 12, 2019

Replies: 5

Views: 15K

High School Understanding G-Force: x,y and z Components Explained

May 8, 2019 · Replies 12 · May 12, 2019

Replies: 12

Views: 14K

Graduate Are momentum and inertia definite ?

May 12, 2019 · Replies 1 · May 12, 2019

Replies: 1

Views: 1K

Graduate Parallel Plate Pulsed Proton Beam Generator (Thought Experiment)

May 10, 2019 · Replies 4 · May 11, 2019

Replies: 4

Views: 2K

Graduate Deriving the lever law using infinitesimals

May 9, 2019 · Replies 10 · May 11, 2019

Replies: 10

Views: 2K

High School Optimizing Weight Distribution for Dog Agility See-Saw Compliance

May 11, 2019 · Replies 3 · May 11, 2019

Replies: 3

Views: 1K

High School UK A level Physics question & Marking scheme question

May 2, 2019 · Replies 17 · May 10, 2019

Replies: 17

Views: 3K

Undergrad Torque with Infinity length can lift anything?

May 9, 2019 · Replies 9 · May 10, 2019

Replies: 9

Views: 2K

Graduate Shear and the stress tensor of a Newtonian fluid

May 10, 2019 · Replies 18 · May 10, 2019

Replies: 18

Views: 3K

Undergrad Help finding some papers on carbon nanotubes

Dec 13, 2003 · Replies 1 · May 10, 2019

Replies: 1

Views: 11K

High School Is the Motion of a Pendulum Described by a Harmonic Oscillator Model?

May 8, 2019 · Replies 12 · May 8, 2019

Replies: 12

Views: 2K

High School Coefficient of Static Friction

Oct 23, 2005 · Replies 1 · May 8, 2019

Replies: 1

Views: 12K

Graduate Does thrust get cancelled by a rotating crank?

May 4, 2019 · Replies 16 · May 8, 2019

Replies: 16

Views: 12K

Undergrad Trajectory of a Projectile that must clear an obstruction

Jan 26, 2018 · Replies 36 · May 7, 2019

2

Replies: 36

Views: 23K

Undergrad Reynolds number - Characteristic dimension

Apr 5, 2009 · Replies 1 · May 7, 2019

Replies: 1

Views: 4K

Undergrad Reynolds Number and Friction Factor: How Does It Work?

Jan 28, 2012 · Replies 1 · May 7, 2019

Replies: 1

Views: 13K

High School Static and dynamic spring constants

Mar 1, 2010 · Replies 1 · May 7, 2019

Replies: 1

Views: 28K

Undergrad What does a helium balloon do on the ISS vs in open space?

Apr 24, 2019 · Replies 76 · May 7, 2019

3

Replies: 76

Views: 10K

Undergrad Understanding the relationship between Pressure and change of state

May 6, 2019 · Replies 10 · May 7, 2019

Replies: 10

Views: 2K

Graduate Comparing RBE to relative penetrating power?

May 6, 2019 · Replies 2 · May 6, 2019

Replies: 2

Views: 10K

Graduate Is Time Just Another Coordinate Axis That We Can Only See Moving Forward?

May 5, 2019 · Replies 6 · May 6, 2019

Replies: 6

Views: 11K

Undergrad Why is F=dU/dx=0 either side of inflexion point?

May 5, 2019 · Replies 4 · May 5, 2019

Replies: 4

Views: 11K

Undergrad Graphene and Newtonian mechanics

May 4, 2019 · Replies 3 · May 5, 2019

Replies: 3

Views: 1K

Undergrad How to calculate change of velocity after hitting water?

May 4, 2019 · Replies 5 · May 5, 2019

Replies: 5

Views: 12K

High School Understanding Pressure and Its Relationship to Force: A Simple Explanation

May 4, 2019 · Replies 22 · May 5, 2019

Replies: 22

Views: 3K

Undergrad Why don't birds get shocked on power lines?

Apr 27, 2019 · Replies 46 · May 5, 2019

2

Replies: 46

Views: 19K

Undergrad How to back calculate vehicle speed after crash?

Nov 9, 2011 · Replies 1 · May 4, 2019

Replies: 1

Views: 16K

Undergrad Deceleration formula for movement simulation

May 4, 2019 · Replies 2 · May 4, 2019

Replies: 2

Views: 10K

High School Can Pi Help Us Understand Velocity and Acceleration?

May 3, 2019 · Replies 6 · May 3, 2019

Replies: 6

Views: 10K

Undergrad Force exerted on a rope by a falling mass

May 2, 2019 · Replies 13 · May 3, 2019

Replies: 13

Views: 11K

Graduate Simple clarification regarding the sign convention for work

Apr 30, 2019 · Replies 9 · May 2, 2019

Replies: 9

Views: 12K

Graduate Where does the equation of the velocity of a free vortex come from?

May 1, 2019 · Replies 3 · May 2, 2019

Replies: 3

Views: 2K

Undergrad Building a Bungee Jumping Structure: Calculating the Max Force

May 2, 2019 · Replies 1 · May 2, 2019

Replies: 1

Views: 9K

Graduate Deep meaning of the work integral formula

Apr 28, 2019 · Replies 13 · Apr 29, 2019

Replies: 13

Views: 2K

Undergrad Kinetic Energy & Intrinsic Angular Momentum

Apr 27, 2019 · Replies 8 · Apr 28, 2019

Replies: 8

Views: 1K

Graduate Pressure at the boundary between two gas phases which are originally sepearted

Jan 20, 2010 · Replies 1 · Apr 28, 2019

Replies: 1

Views: 2K

Undergrad Understanding forced motion in space

Apr 23, 2019 · Replies 4 · Apr 28, 2019

Replies: 4

Views: 9K

High School Understanding the Concepts and Formulas for Energy: Potential and Kinetic

Jan 11, 2019 · Replies 45 · Apr 27, 2019

2

Replies: 45

Views: 53K

High School Is this Simple Harmonic Motion?

Apr 25, 2019 · Replies 5 · Apr 27, 2019

Replies: 5

Views: 10K

Undergrad Confused by the relationship of work and kinetic energy

Apr 26, 2019 · Replies 4 · Apr 26, 2019

Replies: 4

Views: 8K

Undergrad Energy to achieve constant acceleration - F=ma and 1/2mv^2

Oct 22, 2018 · Replies 39 · Apr 26, 2019

2

Replies: 39

Views: 15K

Undergrad Ion Pressure Theory: Can Negative Ions Lift a Metal Ball?

Dec 6, 2011 · Replies 1 · Apr 26, 2019

Replies: 1

Views: 2K

Undergrad Does Earth's Rotation Affect Our Perception of Weight?

Apr 16, 2019 · Replies 26 · Apr 25, 2019

Replies: 26

Views: 12K

High School Proving the effects of gravity by using the scientific method

Apr 1, 2019 · Replies 22 · Apr 25, 2019

Replies: 22

Views: 13K

Undergrad Oscillation with constrained amplitude

Apr 24, 2019 · Replies 2 · Apr 25, 2019

Replies: 2

Views: 8K

Undergrad Huygens' Principle for Sound Waves

Apr 23, 2019 · Replies 9 · Apr 24, 2019

Replies: 9

Views: 9K

Graduate The Effects of Incredibly Small Inertia on Acceleration: A Scientific Inquiry

Apr 23, 2019 · Replies 11 · Apr 24, 2019

Replies: 11

Views: 1K

Undergrad Does gravity defy the law of conservation of energy?

Apr 17, 2019 · Replies 10 · Apr 22, 2019

Replies: 10

Views: 8K

High School Buoyancy and Pressure Interactions in Fluids

Feb 7, 2017 · Replies 20 · Apr 22, 2019

Replies: 20

Views: 8K

High School Does dropping a Jupiter from the Pisa tower still accelerate at g = 9.81?

Apr 16, 2019 · Replies 15 · Apr 22, 2019

Replies: 15

Views: 2K

Undergrad Measure the torque of a servo motor

Apr 16, 2019 · Replies 2 · Apr 22, 2019

Replies: 2

Views: 7K

Undergrad Why Does Tipler & Mosca Emphasize Mass Cancellation in Kinetic Friction?

Apr 21, 2019 · Replies 5 · Apr 22, 2019

Replies: 5

Views: 5K

Graduate Work done on an object given a variable mass

Apr 21, 2019 · Replies 5 · Apr 22, 2019

Replies: 5

Views: 5K

Graduate Formulation of flow generated by the rotating cylinder

Aug 30, 2007 · Replies 1 · Apr 21, 2019

Replies: 1

Views: 4K

Graduate Hydrodynamic entrance length: independent of Re?

Aug 26, 2010 · Replies 1 · Apr 21, 2019

Replies: 1

Views: 4K

Undergrad U-tube manometer fluid mechanics

Aug 17, 2011 · Replies 1 · Apr 21, 2019

Replies: 1

Views: 5K

Undergrad The tension in the horizontal bar connecting the two halves of the ladder

Nov 1, 2010 · Replies 1 · Apr 21, 2019

Replies: 1

Views: 5K

High School Unanswered Questions about Tossed Coins

Jun 10, 2018 · Replies 46 · Apr 20, 2019

2

Replies: 46

Views: 12K

Graduate Spiral Galaxies and Cyclones: Investigating Their Similarities

Apr 20, 2019 · Replies 3 · Apr 20, 2019

Replies: 3

Views: 5K

Graduate Max Bending Moment of Rigidly Clamped Beam

Dec 16, 2009 · Replies 1 · Apr 20, 2019

Replies: 1

Views: 7K

Graduate Question About Conservation of Energy, the Cosmological Constant and Dark Energy

Apr 18, 2019 · Replies 3 · Apr 19, 2019

Replies: 3

Views: 5K

Undergrad Increasing the speed of a circular orbit

Jun 10, 2018 · Replies 5 · Apr 17, 2019

Replies: 5

Views: 3K

Undergrad How Do Multiple Gases Affect Pressure When Compressed into a Liquid?

Jul 1, 2010 · Replies 1 · Apr 17, 2019

Replies: 1

Views: 2K

Undergrad Uniform Lateral Pressure on a bar.

Oct 29, 2011 · Replies 1 · Apr 17, 2019

Replies: 1

Views: 2K

Graduate What is the logic behind Lagrangian mechanics?

Apr 10, 2019 · Replies 23 · Apr 17, 2019

Replies: 23

Views: 3K

Graduate Inviscid flow around cylinder in presence of wall

Apr 8, 2012 · Replies 1 · Apr 17, 2019

Replies: 1

Views: 2K

Undergrad How to calculate pressure for gas pipe?

Apr 6, 2019 · Replies 5 · Apr 17, 2019

Replies: 5

Views: 3K

Undergrad Does mass distribution affect an object's ease of rotation?

Apr 15, 2019 · Replies 13 · Apr 16, 2019

Replies: 13

Views: 2K

Undergrad Average Velocity: Initial & Final Velocities vs. Mean Value Theorem

Nov 10, 2010 · Replies 1 · Apr 16, 2019

Replies: 1

Views: 2K

Graduate Understanding Thermodynamic Potentials: Homogeneous vs. Heterogeneous Systems

Jun 15, 2010 · Replies 1 · Apr 16, 2019

Replies: 1

Views: 2K

High School Why do things produce sound even though no pressure is applied to them?

Apr 15, 2019 · Replies 5 · Apr 16, 2019

Replies: 5

Views: 5K

Undergrad Simple explanation of three body problem

Apr 16, 2019 · Replies 1 · Apr 16, 2019

Replies: 1

Views: 4K

Undergrad What Are the Highest and Lowest Temperatures in Injection Moulding?

Jan 10, 2012 · Replies 1 · Apr 16, 2019

Replies: 1

Views: 2K

Undergrad Force felt by the accelerometer in a smartphone

Feb 13, 2019 · Replies 3 · Apr 16, 2019

Replies: 3

Views: 2K

Graduate Water Surface with Bernouli's Equation

Jun 21, 2009 · Replies 1 · Apr 16, 2019

Replies: 1

Views: 2K

Undergrad Is any constant vector field conservative?

Apr 15, 2019 · Replies 6 · Apr 16, 2019

Replies: 6

Views: 3K

Graduate Clarification on Definition of Green Strain

Sep 7, 2011 · Replies 1 · Apr 16, 2019

Replies: 1

Views: 3K

Graduate Conservation of energy and momentum in a gauss gun

Jul 4, 2011 · Replies 1 · Apr 16, 2019

Replies: 1

Views: 4K

Undergrad Calculating G from landing Aircraft

Mar 10, 2008 · Replies 1 · Apr 16, 2019

Replies: 1

Views: 10K

Undergrad Calculate how much water i need to raise air humidity

Mar 28, 2011 · Replies 1 · Apr 16, 2019

Replies: 1

Views: 4K

Undergrad Boiling point at a certain pressure

Oct 7, 2010 · Replies 1 · Apr 15, 2019

Replies: 1

Views: 3K

Graduate Air pressure and velocity in a pipe

Apr 5, 2012 · Replies 1 · Apr 15, 2019

Replies: 1

Views: 3K

Graduate Designing a Couette Cell - Get the Right Shear Gradient

May 3, 2011 · Replies 1 · Apr 15, 2019

Replies: 1

Views: 3K

Undergrad Film Winder Force and Torque Calculations

Aug 12, 2007 · Replies 1 · Apr 15, 2019

Replies: 1

Views: 4K

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