Mechanics Forum

Post thread
Bernoulli’s equation for a rotating fluid
  • · Replies 4 ·
Replies
4
Views
3K
The collision between water and stone, stone-skipping science
  • · Replies 2 ·
Replies
2
Views
975
Explaining Pressure & Depth Relationships in Fluids Using Halliday & Resnick
  • · Replies 4 ·
Replies
4
Views
2K
Newton's laws of motion in 3+1 dimensions ?
  • · Replies 2 ·
Replies
2
Views
1K
Calculating the amplitude of waves in water
  • · Replies 16 ·
Replies
16
Views
2K
How does pressure act in all directions if gravity is downward only
  • · Replies 4 ·
Replies
4
Views
2K
Rocket propulsion explained only through pressure differential
  • · Replies 46 ·
2
Replies
46
Views
5K
Momentum paradox: Why can't we write it as p=m+v ?
  • · Replies 83 ·
3
Replies
83
Views
6K
What is wrong with following physics equations? (velocity and acceleration)
  • · Replies 5 ·
Replies
5
Views
1K
What causes unhinged objects to rotate?
  • · Replies 35 ·
2
Replies
35
Views
4K
Why is there angular acceleration in a non-spinning gyroscope?
  • · Replies 2 ·
Replies
2
Views
1K
Adding a constant to potential energy doesn't change action?
  • · Replies 7 ·
Replies
7
Views
3K
Mass loss in Bernoulli's Principle?
  • · Replies 2 ·
Replies
2
Views
1K
Thoughts on neural networks "discovering" physical concepts
  • · Replies 6 ·
Replies
6
Views
2K
Intuitive Explanation of Mass-on-Spring Oscillator Frequency
  • · Replies 20 ·
Replies
20
Views
4K
Rotation around a non fixed axis + linear motion of a system
  • · Replies 21 ·
Replies
21
Views
4K
Brownian Motion - "no inertia"
  • · Replies 6 ·
Replies
6
Views
2K
Why does a car apply a force to a wall?
  • · Replies 5 ·
Replies
5
Views
1K
Aerodynamics -- Warehouse fans blowing toward each other
  • · Replies 3 ·
Replies
3
Views
3K
Heisenberg and Varying the Velocity
  • · Replies 1 ·
Replies
1
Views
918
Particles on Deforming Surfaces: Theory & Analysis
  • · Replies 4 ·
Replies
4
Views
1K
Understanding Torque: Applying the Right Hand Rule in Real Life
  • · Replies 25 ·
Replies
25
Views
5K
1 pulley with mass, 1 mass on the cord, 1 external force, no gravity
  • · Replies 16 ·
Replies
16
Views
3K
Centrifugal forces don't exist in reality?
  • · Replies 93 ·
4
Replies
93
Views
7K
Conservation of momentum and energy problem
  • · Replies 5 ·
Replies
5
Views
3K
Finding Percent of Water & Oil in a Mixture from Surface Tension
  • · Replies 6 ·
Replies
6
Views
1K
Direction of an infinitesimal rotation?
  • · Replies 2 ·
Replies
2
Views
1K
Why is the velocity (vector) the same value as the speed (scalar)?
  • · Replies 23 ·
Replies
23
Views
4K
How Does Refraction Affect Perceived Fish Size Underwater?
  • · Replies 8 ·
Replies
8
Views
4K
Transmitting Torque: Meaning & Why Not Power?
  • · Replies 21 ·
Replies
21
Views
2K
Wheel moving in rotation and translation
  • · Replies 15 ·
Replies
15
Views
3K
Work Done Doing Push-ups on an Incline
  • · Replies 23 ·
Replies
23
Views
3K
Complex motion equation (projectile with changing mass and thrust)
  • · Replies 2 ·
Replies
2
Views
1K
What is an inertial frame? A conflict of two definitions
  • · Replies 83 ·
3
Replies
83
Views
5K
Newton's 2nd Law: Force, Mass and Acceleration
  • · Replies 8 ·
Replies
8
Views
2K
Surface tension and Young's contact angle
  • · Replies 3 ·
Replies
3
Views
2K
Reaction torque in a traction system
  • · Replies 10 ·
Replies
10
Views
2K
Does inertia have anything to do with bodies falling at the same rate?
  • · Replies 14 ·
Replies
14
Views
2K
Understanding Pressure Changes: Air and Water in Containers
  • · Replies 10 ·
Replies
10
Views
2K
Lennard Jones Potential and the Average Distance Between Two Particles
  • · Replies 9 ·
Replies
9
Views
3K
Energy of translation compared to the energy of rotation
  • · Replies 28 ·
Replies
28
Views
3K
Can Sci-Fi Spacecraft Achieve Stable Orbit with Plasma Technology?
  • · Replies 4 ·
Replies
4
Views
2K
Is gravity an inertial force or interaction force?
  • · Replies 9 ·
Replies
9
Views
2K
Is the Coriolis Effect an Illusion in a Tossed Ball's Motion?
  • · Replies 10 ·
Replies
10
Views
1K
Gravitational potential energy formulas
  • · Replies 2 ·
Replies
2
Views
1K
Conservation of angular momentum and its counterpart for linear momentum
  • · Replies 13 ·
Replies
13
Views
3K
Addition of moments of inertia
  • · Replies 35 ·
2
Replies
35
Views
6K
Rotating frames - Apparent gravity
  • · Replies 19 ·
Replies
19
Views
3K
Difference between centrifugal force vs reactive centrifugal force?
  • · Replies 78 ·
3
Replies
78
Views
6K
Covariance of Newton's 2nd Law under Galilean boosts
  • · Replies 38 ·
2
Replies
38
Views
5K
What is the orientation of the vector of friction?
  • · Replies 241 ·
9
Replies
241
Views
13K
Calculation of the forces and the work of these forces
  • · Replies 25 ·
Replies
25
Views
3K
Will "centrifugal propulsion" works?
  • · Replies 6 ·
Replies
6
Views
2K
How much liquid water do I need to get a relative humidity of 10%?
  • · Replies 9 ·
Replies
9
Views
2K
Why the change in potential energy is the same in all cases?
  • · Replies 22 ·
Replies
22
Views
2K
Understanding energy conservation in a solenoid
  • · Replies 5 ·
Replies
5
Views
2K
Is Newton's Law of Gravity Still Accurate Despite Einstein's Discoveries?
  • · Replies 4 ·
Replies
4
Views
2K
Pressure Differential in Fluid Dynamics: Why More on the '+s' Side?
  • · Replies 5 ·
Replies
5
Views
2K
Motional EMF in the frame of a moving wire
  • · Replies 28 ·
Replies
28
Views
2K
The Butterfly Effect: Small Changes Lead to Big Results
  • · Replies 12 ·
Replies
12
Views
2K
What units are used in spin factor and coefficient of lift formulas?
  • · Replies 3 ·
Replies
3
Views
2K
Why can shock waves condense water vapor?
  • · Replies 6 ·
Replies
6
Views
3K
How to Estimate Tensile Force on a Pre-Tensioned Rope?
  • · Replies 5 ·
Replies
5
Views
2K
Why is the kinetic energy equation multiplied by ½?
  • · Replies 79 ·
3
Replies
79
Views
6K
Work done on a moving square wire loop in a B-field
  • · Replies 9 ·
Replies
9
Views
987
Moment of inertia where mass and torque are at a different positions
  • · Replies 69 ·
3
Replies
69
Views
6K
Finding Fourier Transforms of Non-Rectangular Pulses
  • · Replies 16 ·
Replies
16
Views
2K
Why gravitational potential energy is a system property?
  • · Replies 45 ·
2
Replies
45
Views
3K
What happens if you put a sphere (ball) on the top of a pyramid?
  • · Replies 84 ·
3
Replies
84
Views
6K
Gravity, Air Friction, Drag, 50, 60, 70, 100 miles up?
  • · Replies 6 ·
Replies
6
Views
2K
How does Sherwood's rotational work equation differ?
  • · Replies 9 ·
Replies
9
Views
1K
What is the geometrical connection between escape velocity and orbital velocity?
  • · Replies 4 ·
Replies
4
Views
4K
Water in a tank being driven up and down
  • · Replies 34 ·
2
Replies
34
Views
3K
Does the Relation ##T_2 = T_1 e^{\mu \theta}## Hold for an Accelerating Capstan?
  • · Replies 1 ·
Replies
1
Views
1K
A general potential energy for a multi-particle system
  • · Replies 6 ·
Replies
6
Views
2K
How does a pressure distribution keep the fluid from moving?
  • · Replies 7 ·
Replies
7
Views
2K
Vapour pressure of water vapour in air
  • · Replies 9 ·
Replies
9
Views
2K
Equation for trapzoidal motion in motors
  • · Replies 4 ·
Replies
4
Views
1K
Power required to reach X velocity in X time with drag
  • · Replies 10 ·
Replies
10
Views
2K
Escape Velocity depends on the Radius of the Earth?
  • · Replies 13 ·
Replies
13
Views
5K
Sound intensity - How to deal with decibels?
  • · Replies 17 ·
Replies
17
Views
2K
Which Equation Do Real Springs Obey Better?
  • · Replies 9 ·
Replies
9
Views
2K
Why is rolling easier than sliding?
  • · Replies 71 ·
3
Replies
71
Views
10K
"External" potential energies strike back
  • · Replies 6 ·
Replies
6
Views
1K
How to ensure maximum possible joint torque for an actuator?
  • · Replies 2 ·
Replies
2
Views
1K
Transformation law of momentum under Galilean transformation
  • · Replies 5 ·
Replies
5
Views
2K
A peculiar definition of work on Wikipedia
  • · Replies 3 ·
Replies
3
Views
1K
How can I calculate the moment of inertia of any object?
  • · Replies 10 ·
Replies
10
Views
2K
Understanding EMF and Potential Difference in Electrical Circuits
  • · Replies 6 ·
Replies
6
Views
3K
How do we provide centripetal force in this situation?
  • · Replies 16 ·
Replies
16
Views
2K
Does a general rotational analogue of CoM work exist?
  • · Replies 3 ·
Replies
3
Views
1K
Divergence of a position vector in spherical coordinates
  • · Replies 24 ·
Replies
24
Views
5K
When Does an Object Experience Only Centripetal Acceleration in Circular Motion?
  • · Replies 2 ·
Replies
2
Views
1K
What is the role of Poisson's ratio in determining stress and stiffness?
  • · Replies 4 ·
Replies
4
Views
1K
How can the rotation of galaxies be explained?
  • · Replies 9 ·
Replies
9
Views
2K
Seeming Contradiction of Potential
  • · Replies 12 ·
Replies
12
Views
1K
2-body problem - conservation of angular momentum
  • · Replies 40 ·
2
Replies
40
Views
4K
Question About Rotational Forces when Lifting Weights
  • · Replies 8 ·
Replies
8
Views
2K
Influence of initial shift on undamped frictionless forced oscillations
  • · Replies 10 ·
Replies
10
Views
1K
What is the relationship between mass and weight?
  • · Replies 4 ·
Replies
4
Views
2K