Mechanics Forum

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High School How Long Will it Take to Drain a 600 Gallon Tank Down a Hill with a 4 Pipe?
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High School Swimming pool pressure on bottom drain fittings
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4
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Undergrad Regaining Balance: How Does It Work?
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7
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Undergrad Braking calculations while going down a slope pullling a load
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9
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Graduate Oscillatory motion of a spring-mass system
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3
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Undergrad Easier to balance on a bicycle when you are cycling faster
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8
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Undergrad Need brains about car plowing into my house
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5
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Undergrad Calculate Power Generated in Battery: Internal/External Resistance
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2
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Undergrad How Can I Graph the Force Acting on a Bar During a Weightlifting Movement?
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4
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2K
Graduate How Does Surface Curvature Affect Saturation Vapour Pressure?
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5
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8K
High School How can objects move if every action has an equal and opposite reaction?
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2
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Undergrad Potential of two surfaces coming together
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8
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Graduate Exploding C4 Sphere: Understanding the Dynamics of an Explosive Event
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1
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Graduate Switching between frames of reference
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1
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Graduate Two expressions for work - which is correct?
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12
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3K
High School Curious: Car vs Plane - Who Gets There First?
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5
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High School Mass, weight, acceleration, motion
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1
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High School Finding Torque Ratio for Gears with 3.2:1 Gear Ratio
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5
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Undergrad Shear Stress of a particular length rod
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3
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17K
Undergrad Is Friction Affected by Tire Pressure on Bikes?
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9
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12K
Undergrad Bridge tester design (for competition)
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3
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5K
Undergrad Problem with gravity and masses
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5
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2K
Undergrad Centripetal Forces And Helicopters
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4
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4K
High School Elasticity of metals springs and rubber bands
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8
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8K
Graduate The puzzling discovery of a motor made from liquid film
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1
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4K
Undergrad Lifter. Does it actually works in vaccum?
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3
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3K
Undergrad Terminal velocity and g-forces
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3
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10K
Undergrad Gravity around the Earth (or other large spherical object)
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16
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5K
High School How to Calculate Distance Traveled by a Discus Using Wind Tunnel Data?
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2
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3K
High School Boil Water At Low Temparatures
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11
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Graduate What is the maximum time to reach the apex involving pi?
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2
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6K
High School Objects will travel at a constant speed towards the earth no matter
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18
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4K
Undergrad Dust accumulation and change of weight (or mass, or gravitation field)
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18
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6K
Undergrad Newtonian Physics & Relativity: Work & Energy
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8
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3K
High School Master Simple Harmonic Motion: Learn the Basics with Online Tutorials
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4
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3K
Undergrad Model Car Movement Physics with \sumF = ma and \sumT = m \alpha
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4
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8K
Graduate Why is Mechanics Goldstein difficult to understand?
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5
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4K
Undergrad Why does a ball go further if toe poked
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22
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8K
High School Can an Infinite Hose Really Stop Water Flow?
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26
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6K
Graduate Understanding Constraint Forces in Mechanics
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4
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Mystery of the Watery Road: A Puzzling Sight
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3
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High School Classroom Denomstration of Rotational Kinetic Energy
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7
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4K
Undergrad How Do You Find Velocity When Acceleration Is Not Constant?
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5
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20K
High School Maximizing Flight Time: Tips for Adjusting Flaps on a Balsa Wood Glider
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2
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9K
Undergrad Gravitational potential energy and attraction
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4
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4K
Graduate Rotational group SO(3) in classical mechanics
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2
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3K
Undergrad Speed of car to overcome a pothole
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4
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6K
Undergrad Where did the energy come from when lifting the box?
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7
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25K
Undergrad Is the Computation of Instantaneous Power Valid for Non-Constant Forces?
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10
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Undergrad Who Will Reach the Bottom First: The Heavier or Lighter Car?
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Undergrad Okay, here is my hypothetical situation. Lets say there is a cylinder
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2
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3K
Graduate Firing a spherical bullet into a watertank
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4
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3K
Undergrad What Are the Effects of Heat on Friction in a Vacuum?
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4
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Undergrad Potential in a conductor within an external field
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4
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7K
High School Answer Buoyancy Q: Air Effect on Scale Reading
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18
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High School Will Both Bags Fill at the Same Rate? Thoughts and Answers Needed
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3
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High School Using the pressure of the water in the sea
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5K
Undergrad Automotive weight transfer question
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3
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3K
Graduate What frequencies are present in a spark and its resulting hertzian waves?
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3
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Undergrad Gravity speed and force of impact
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2
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Undergrad What is the role of electrostatic force in Bernoulli's Principle?
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Undergrad Can rotation wt, lift leverage wt
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Graduate Physical meaning of potential flow
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3
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High School Drag coefficient of an object in freefall in air
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4
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Undergrad A spinning cap that reverses direction?
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1
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Undergrad On torque and work having same units
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5
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6K
Graduate Getting higher potential difference with Van De Graaff machines
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2
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Undergrad Why audio speaker produces the same sound wave?
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6
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4K
Undergrad When did centrifugal force die?
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12
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Undergrad Forcing water from a pipe underwater
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6
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6K
High School Determining RMS Velocity: A Simplified Explanation
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1
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Undergrad Tangent and normal acceleration, curvature radius
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2
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9K
Undergrad Microscopic potential energy of a gas
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4
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4K
Graduate Derivation of the key principle statistical Mechanics
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12
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4K
High School How is Kinetic Energy Converted into Electrical Energy in Power Plants?
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1
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Undergrad Conservation of Kenetic Energy: Rotational Style
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4
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3K
Undergrad Collision Reaction: Mass Difference & Speed Exchange
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5
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3K
High School Why does water spin in funnel?
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High School What makes tennis loud popping sound?
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8
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Undergrad Impulse of objects in a physics simulator
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6
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3K
High School Direction of friction in rotation
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1
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4K
Undergrad Arches or Beams: Why Arches Hold More Weight on Pasta Bridges
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2
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Undergrad Lift forces acting upon an aircraft
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9
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High School Centroids of various triangles.
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2
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Graduate About lagrange dynamics of aparticle
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4
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Undergrad Acceleration and Newtons gravitation
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10
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3K
Undergrad CG of Rectangular Frame with Offset Weight: Need Counterweight?
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3
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Undergrad Potential energy of a vibrating string?
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1
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Undergrad How would this work on the moon? theory
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4
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Undergrad Impulse and Net Force Equations
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1
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High School How to Calculate Horizontal Jumping Speed on a Skateboard?
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1
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Undergrad What is the Force of Gravity Outside a Cylinder?
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7
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High School Time taken to reach max/min height
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10
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Undergrad Types of physicists at a particle accelerator?
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1
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Undergrad Best velocity to cross a rainy space
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9
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3K
High School The Curious Behavior of Spinning Tops
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5
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6K
High School What must be present for the propagation of a mechanical wave?
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9
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3K
High School Everyone in the world jumping in place at one time
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5
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Graduate Need reference for 'mass tensor'
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17
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5K
Graduate The Calculated Value of the Fine Structure Constant From Gravitational Potential
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11
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10K