Mechanics Forum

Post thread
Undergrad Is Sound Energy a Factor in the Lack of Conservation of Momentum in a Collision?
  • · Replies 2 ·
Replies
2
Views
2K
High School Why and How are Mechanical and Kinetic Energy different?
  • · Replies 3 ·
Replies
3
Views
14K
High School When is g (9.8) negative or positive?
  • · Replies 2 ·
Replies
2
Views
42K
High School Understanding constant velocity, inertia and rest
  • · Replies 7 ·
Replies
7
Views
3K
Undergrad Finding the size of Beam (cross members/knee braces)
  • · Replies 2 ·
Replies
2
Views
3K
High School Pump Pressure and Flow: Understanding Rated Pressure and Flow
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Lagrange's Equation Generalized Coordinates
  • · Replies 4 ·
Replies
4
Views
2K
Undergrad How to calculate motion of object pushed by force?
  • · Replies 4 ·
Replies
4
Views
2K
Undergrad Pipe size and diameter connecting hydraulic pistons
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Aerodynamic Lift/Kutta-Zhukovsky theorem
  • · Replies 5 ·
Replies
5
Views
2K
Graduate Can we treat non-conservative forces in the Lagrangian formulation?
  • · Replies 10 ·
Replies
10
Views
5K
High School Momentum of 3 Balls: Ball 1 & Triangle
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad For a ball falling through a fluid, does the ball do work on the fluid
  • · Replies 16 ·
Replies
16
Views
6K
Undergrad Can an Orange Break Through 1/2" Drywall?
  • · Replies 9 ·
Replies
9
Views
3K
Undergrad Just a thought experiment on fluid mechanics.
  • · Replies 3 ·
Replies
3
Views
2K
Graduate Calculating acceleration on different gears in vehicle
  • · Replies 27 ·
Replies
27
Views
21K
Graduate Confusion regarding use of differentiation and unit vectors
  • · Replies 1 ·
Replies
1
Views
1K
Undergrad Why is potential energy negative?
  • · Replies 3 ·
Replies
3
Views
2K
Undergrad Working substance of a refrigerator
  • · Replies 1 ·
Replies
1
Views
4K
Undergrad Angular momentum conservation of two point masses
  • · Replies 3 ·
Replies
3
Views
3K
High School Stable Equilibrium: Definition & Physical Meaning
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad Wavelength of sound and windspeed
  • · Replies 6 ·
Replies
6
Views
2K
Graduate Geometries of potential theory (fluid mechanics)
  • · Replies 5 ·
Replies
5
Views
2K
Undergrad Why weight change when I put effervescence tablet ?
  • · Replies 75 ·
3
Replies
75
Views
26K
Undergrad Action Reaction on a discus thrower.
  • · Replies 5 ·
Replies
5
Views
3K
Graduate Virtual displacement vs. differential displacement
  • · Replies 9 ·
Replies
9
Views
6K
Undergrad What Are Fictitious Forces and How Do They Affect Falling Objects?
  • · Replies 4 ·
Replies
4
Views
2K
Undergrad Is Momentum Conserved in Elastic and Inelastic Collisions with Walls?
  • · Replies 25 ·
Replies
25
Views
13K
Undergrad Pressure increase in a closed system
  • · Replies 1 ·
Replies
1
Views
5K
Graduate Can Blood Balls Cool Faster in Vacuum or Air?
  • · Replies 4 ·
Replies
4
Views
2K
Graduate Can the Bernoulli equation be used for turbulent flow?
  • · Replies 10 ·
Replies
10
Views
18K
High School Undestand that Kinetic(max) = Dynamic(max)
  • · Replies 1 ·
Replies
1
Views
1K
Graduate How to convert angular velocity to rotation matrix?
  • · Replies 4 ·
Replies
4
Views
4K
Undergrad Is momentum really conserved in a perfectly inelastic collision?
  • · Replies 27 ·
Replies
27
Views
14K
Undergrad Mains power plugs and plug packs
  • · Replies 24 ·
Replies
24
Views
15K
Undergrad Q: How to measure the force of impact of 100,000 lbs/sq inch or more?
  • · Replies 2 ·
Replies
2
Views
3K
Graduate Bernoulli's principle in stagnant situations
  • · Replies 7 ·
Replies
7
Views
2K
Undergrad Springs with the least amount of damping?
  • · Replies 1 ·
Replies
1
Views
2K
High School Is there a difference between a car fuel pump and a water pump
  • · Replies 3 ·
Replies
3
Views
17K
Undergrad Why Does Toilet Water Splash Back Up?
  • · Replies 3 ·
Replies
3
Views
2K
Graduate Plasma wakefield acceleration. Why is plasma the perfect transformer?
  • · Replies 5 ·
Replies
5
Views
3K
Undergrad Understanding the Cauchy Stress Tensor for Beginners
  • · Replies 6 ·
Replies
6
Views
3K
High School Heavier object has higher inertia
  • · Replies 6 ·
Replies
6
Views
13K
Graduate Why does a fixed distance reduce degrees of freedom?
  • · Replies 4 ·
Replies
4
Views
2K
Undergrad Centripetal acceleration vector
  • · Replies 35 ·
2
Replies
35
Views
19K
Undergrad Deriving the formula for distance
  • · Replies 6 ·
Replies
6
Views
2K
Graduate Understanding Centripetal Forces on a Rotating Bead Hoop
  • · Replies 6 ·
Replies
6
Views
4K
Graduate Calculate position of the centre of a rigid bar
  • · Replies 4 ·
Replies
4
Views
2K
Graduate Do Steel Molecules Move Simultaneously or Sequentially?
  • · Replies 5 ·
Replies
5
Views
3K
Undergrad Graphing Object's Fall to Earth From High Altitude
  • · Replies 12 ·
Replies
12
Views
6K
Undergrad What is the time taken to reach a given height with escape velocity?
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad What Causes a Reel to Reverse Direction When Pulled?
  • · Replies 2 ·
Replies
2
Views
3K
Undergrad Bernoulli and Continuity Equations
  • · Replies 6 ·
Replies
6
Views
7K
Graduate How to Find ∂L/∂q: A Simple Guide for Calculating Lagrangian Equations
  • · Replies 6 ·
Replies
6
Views
2K
Undergrad How can objects have negative potential energy at 0 height?
  • · Replies 11 ·
Replies
11
Views
6K
Graduate How Is Equation (3.102) Derived in Electromagnetism?
  • · Replies 3 ·
Replies
3
Views
1K
Graduate Torque as measured from center of mass.
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad Rotating/moving an object in space by the use of thrusters
  • · Replies 8 ·
Replies
8
Views
7K
Undergrad Work–kinetic energy theorem for rotational motion. need to be symetri?
  • · Replies 3 ·
Replies
3
Views
2K
Undergrad Analyzing Action-Reaction between Two Masses in Rotation
  • · Replies 7 ·
Replies
7
Views
3K
Undergrad Why is torque on a frictionless axle zero?
  • · Replies 13 ·
Replies
13
Views
6K
Graduate The importance of conservation of energy.
  • · Replies 13 ·
Replies
13
Views
6K
Graduate Calculating Kinetic Energy of Cylinder with Clamped End
  • · Replies 7 ·
Replies
7
Views
2K
High School Momentum is conserved in a collision
  • · Replies 3 ·
Replies
3
Views
2K
High School Solving the Debate: How Fast Am I Going?
  • · Replies 7 ·
Replies
7
Views
3K
Graduate Kalman Filter - Acceleration Measurements
  • · Replies 24 ·
Replies
24
Views
11K
Undergrad Why is the inertia tensor calculated about a point instead of an axis?
  • · Replies 9 ·
Replies
9
Views
4K
Undergrad Archimedes principle vs Atwood's principle
  • · Replies 32 ·
2
Replies
32
Views
8K
Graduate How to express particle momentum in [rad]
  • · Replies 5 ·
Replies
5
Views
2K
High School Moments - How are they actually calculated?
  • · Replies 3 ·
Replies
3
Views
2K
Undergrad Geiger counter unaccounted jump in count rate
  • · Replies 6 ·
Replies
6
Views
2K
Graduate What is Photon Momentum and hf?
  • · Replies 4 ·
Replies
4
Views
3K
Undergrad Is Calculating Work Done by Gravity as Simple as It Seems?
  • · Replies 3 ·
Replies
3
Views
3K
Graduate Particle Collision: What is Involved?
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad How does a bubble moving up in a water column affect the force on a table?
  • · Replies 20 ·
Replies
20
Views
7K
Undergrad Strength of Mild Steel 1/16" Wall Tubing
  • · Replies 1 ·
Replies
1
Views
2K
Graduate What is the physical interpretation of the 1st and 2nd moment of area?
  • · Replies 11 ·
Replies
11
Views
30K
High School Rethinking Newton's Equation: Re-writing F=MA with Reduced Mass
  • · Replies 10 ·
Replies
10
Views
8K
Undergrad Best way to capture the energy of a falling object
  • · Replies 16 ·
Replies
16
Views
7K
Undergrad How Do You Calculate the Elongation of a Spring Stretched at Both Ends?
  • · Replies 5 ·
Replies
5
Views
11K
Graduate Small oscillation equation derivation
  • · Replies 21 ·
Replies
21
Views
5K
Undergrad Negative Acceleration: Understanding Movement Direction
  • · Replies 2 ·
Replies
2
Views
3K
Graduate Understanding non-inertial reference frames in CM and SR.
  • · Replies 2 ·
Replies
2
Views
3K
Undergrad What is the equation of wave velocity for an extended spring?
  • · Replies 9 ·
Replies
9
Views
8K
Graduate Free cylinder on an accelerating platform
  • · Replies 8 ·
Replies
8
Views
3K
Graduate What happens in a particle accelerator?
  • · Replies 35 ·
2
Replies
35
Views
8K
Undergrad Uniform Circular Motion A Jet Pilot
  • · Replies 1 ·
Replies
1
Views
7K
Graduate How Does Taylor's Mechanics Address Rocket Momentum with Changing Mass?
  • · Replies 3 ·
Replies
3
Views
2K
Undergrad Lagrangian, Hamiltonian coordinates
  • · Replies 1 ·
Replies
1
Views
2K
High School Supose a car, going at a constant velocity
  • · Replies 1 ·
Replies
1
Views
1K
Graduate Water has emergent properties?
  • · Replies 58 ·
2
Replies
58
Views
14K
Graduate Fluid Mechanics: Friction of a moving surface
  • · Replies 13 ·
Replies
13
Views
3K
Graduate Steady state in fluid mechanics
  • · Replies 7 ·
Replies
7
Views
4K
Undergrad Is Work Directly Related to Time in Physics?
  • · Replies 11 ·
Replies
11
Views
2K
Undergrad Looking for some info on Saturn V rocket launch
  • · Replies 3 ·
Replies
3
Views
2K
Graduate Kinetic Energy in Reference Frames
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad Spring constant of a bent pvc pipe
  • · Replies 2 ·
Replies
2
Views
2K
Graduate Pressure variation in Navier-Stokes Equation
  • · Replies 7 ·
Replies
7
Views
4K
Graduate Does anything travel at speed c in the atmosphere.
  • · Replies 2 ·
Replies
2
Views
1K
High School What causes a thrown baseball to curve?
  • · Replies 3 ·
Replies
3
Views
1K