Mechanics Forum

Post thread
Undergrad PSI & Buoyancy: Container Air Pressure Effect on Sink/Float
  • · Replies 9 ·
Replies
9
Views
7K
Undergrad Torque Required for Rotating a Cylinder
  • · Replies 6 ·
Replies
6
Views
6K
Undergrad How does gas behave/flow in different sized tubing/piping?
  • · Replies 1 ·
Replies
1
Views
7K
Graduate The pendulum using Lagrange in cartisian
  • · Replies 2 ·
Replies
2
Views
889
Undergrad Can a Frictionless Rollercoaster Theoretically Travel Indefinitely?
  • · Replies 18 ·
Replies
18
Views
4K
Undergrad Calculating the force required to topple an object?
  • · Replies 6 ·
Replies
6
Views
21K
High School Projectile motion sand bag drop
  • · Replies 1 ·
Replies
1
Views
1K
Undergrad Will a car battery be able to run this?
  • · Replies 12 ·
Replies
12
Views
3K
Undergrad Simple vector addition question
  • · Replies 3 ·
Replies
3
Views
1K
Undergrad How does mechanical energy work?
  • · Replies 5 ·
Replies
5
Views
2K
High School Does a Moving Sphere's Kinetic Energy Affect Its Atomic Particles?
  • · Replies 24 ·
Replies
24
Views
4K
Undergrad Centrifugal force acting on fine particles
  • · Replies 6 ·
Replies
6
Views
2K
High School Why is kinetic energy 1/2 mv^2?
  • · Replies 33 ·
2
Replies
33
Views
39K
Undergrad What is the formula for the first moment?
  • · Replies 5 ·
Replies
5
Views
2K
Undergrad Wall strength and tension on rope-pulley system
  • · Replies 6 ·
Replies
6
Views
4K
Undergrad Water Jet Impact Force Calculator
  • · Replies 9 ·
Replies
9
Views
4K
Graduate Boltzmann equation and Kinetic equilibrium
  • · Replies 9 ·
Replies
9
Views
5K
Undergrad Using conservation of energy with pendulums
  • · Replies 4 ·
Replies
4
Views
2K
Undergrad Pressure losses if going from a 1/2" pipe to 3/4" pipe?
  • · Replies 5 ·
Replies
5
Views
34K
Tension Direction: Hello, What Is Correct?
  • · Replies 5 ·
Replies
5
Views
5K
Graduate How does the inclusion of a massive rod affect the dynamics of a pendulum?
  • · Replies 10 ·
Replies
10
Views
5K
Undergrad Direction of friction acting on a rolling object
  • · Replies 12 ·
Replies
12
Views
11K
Undergrad Are external and internal forces distinct in their effects on objects?
  • · Replies 5 ·
Replies
5
Views
2K
High School Question about static elecrticity (car tires)
  • · Replies 4 ·
Replies
4
Views
3K
Undergrad Where Does the Non-Zero Potential Energy Come From?
  • · Replies 6 ·
Replies
6
Views
3K
Undergrad Acceleration on inclined plane
  • · Replies 4 ·
Replies
4
Views
3K
High School Why are the forces in Newton's 3 laws equal, but not in hydraulic systems?
  • · Replies 30 ·
2
Replies
30
Views
7K
Graduate Why does Newton's 3rd law holds macroscopically?
  • · Replies 8 ·
Replies
8
Views
2K
High School Why is gravitational acceleration regarded as a constant?
  • · Replies 16 ·
Replies
16
Views
3K
Undergrad Detecting Falling Objects with a LiDAR
  • · Replies 5 ·
Replies
5
Views
2K
Graduate Helicopter Rotation, Torque and Angular Momentum
  • · Replies 6 ·
Replies
6
Views
10K
Undergrad Laminar and turbulent flow, the liquid or object?
  • · Replies 5 ·
Replies
5
Views
2K
Undergrad How does a clay pot cool water?
  • · Replies 8 ·
Replies
8
Views
8K
Undergrad Projectile motion trajectories differing from 45 degrees
  • · Replies 4 ·
Replies
4
Views
1K
High School Just how strong is the Air pressure
  • · Replies 49 ·
2
Replies
49
Views
7K
High School Projectile from certain height
  • · Replies 12 ·
Replies
12
Views
8K
Undergrad What does mobile phone accelerometers actually measure
  • · Replies 3 ·
Replies
3
Views
2K
Undergrad Understanding Torque: The Role of Normal Force in Free-Body Diagrams | Explained
  • · Replies 2 ·
Replies
2
Views
3K
Undergrad Decomposition of Rotation into Forward Motion and Turn Motion
  • · Replies 2 ·
Replies
2
Views
1K
Undergrad Does the Moment of Inertia Change with Position?
  • · Replies 3 ·
Replies
3
Views
3K
Undergrad Thermo flask - wall - air pressure
  • · Replies 1 ·
Replies
1
Views
1K
Undergrad Simple Harmonic Motion with Damping and Driving
  • · Replies 4 ·
Replies
4
Views
2K
High School Combining DC Generators for Increased Voltage Output
  • · Replies 2 ·
Replies
2
Views
2K
Graduate Rationale for size and number of accelerator rings
  • · Replies 1 ·
Replies
1
Views
1K
Undergrad What density do I use to calculate buoyancy for a hollow cylinder float?
  • · Replies 6 ·
Replies
6
Views
2K
Graduate Understanding VLBI: The Importance of Time Communication in Interferometry
  • · Replies 22 ·
Replies
22
Views
4K
High School How the wedge is connected with string
  • · Replies 25 ·
Replies
25
Views
3K
High School How do Antistatic Wrist Straps work?
  • · Replies 11 ·
Replies
11
Views
4K
High School How centripetal force is created?
  • · Replies 15 ·
Replies
15
Views
3K
Graduate Fuel evaporation in a tank - Pressure calculation
  • · Replies 1 ·
Replies
1
Views
3K
Undergrad Fully developed flow, Reynolds number
  • · Replies 12 ·
Replies
12
Views
4K
Undergrad Force Applied -- General doubt about pushing 2 blocks on a floor with friction
  • · Replies 21 ·
Replies
21
Views
4K
Undergrad How Is Drift Calculated in River Boat Problems?
  • · Replies 52 ·
2
Replies
52
Views
20K
High School Acceleration of a stationary mass?
  • · Replies 12 ·
Replies
12
Views
3K
High School How to understand energy？and the relation with work?
  • · Replies 8 ·
Replies
8
Views
1K
Undergrad Understanding Work Done by Friction on an Accelerating Bus
  • · Replies 7 ·
Replies
7
Views
3K
Undergrad Escape velocity earth confusion
  • · Replies 5 ·
Replies
5
Views
2K
High School Average kinetic energy of the molecules in a cold liquid less?
  • · Replies 32 ·
2
Replies
32
Views
6K
Undergrad Law of continuity problem in fluids
  • · Replies 1 ·
Replies
1
Views
2K
High School Simple harmonic motion>Origin?
  • · Replies 19 ·
Replies
19
Views
3K
Undergrad Center of rotation of a free rod
  • · Replies 5 ·
Replies
5
Views
2K
Graduate Understanding the Direction of Acceleration in SHM: Mathematically Explained
  • · Replies 6 ·
Replies
6
Views
3K
Graduate Question about Lagrangian Mechanics.
  • · Replies 2 ·
Replies
2
Views
1K
Undergrad Conceptual Questions on Mechanics
  • · Replies 2 ·
Replies
2
Views
4K
Undergrad Tension in a catenary curve - Cable Camera
  • · Replies 7 ·
Replies
7
Views
6K
High School What happens to the sound wave?
  • · Replies 4 ·
Replies
4
Views
2K
Undergrad Ball rolling on a larger ball on a surface
  • · Replies 4 ·
Replies
4
Views
2K
Undergrad Is My Vehicle in Danger of Sinking if Water Enters?
  • · Replies 2 ·
Replies
2
Views
2K
High School Weightlessness in Free Fall: What's Going On?
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad Calculating Propeller Thrust for Custom-Made Drone
  • · Replies 5 ·
Replies
5
Views
3K
Undergrad How to calculate how much power required to turn a flywheel?
  • · Replies 13 ·
Replies
13
Views
36K
Undergrad Is there a limit to wind power?
  • · Replies 139 ·
5
Replies
139
Views
14K
High School How much of a head start does B need to win the race?
  • · Replies 5 ·
Replies
5
Views
2K
Graduate Would non-conservation of energy imply no science?
  • · Replies 5 ·
Replies
5
Views
1K
Graduate How to measure mass of earth, moon, independently of G
  • · Replies 9 ·
Replies
9
Views
3K
Graduate Derive equation for Energy of the Harmonic Oscillator
  • · Replies 13 ·
Replies
13
Views
3K
Undergrad Venturi effect witout/with nozzle
  • · Replies 2 ·
Replies
2
Views
4K
High School Can Increasing a Spool's Diameter Boost a Motor's RPM?
  • · Replies 5 ·
Replies
5
Views
3K
Graduate If parallel rays never meet why does Braggs law work?
  • · Replies 8 ·
Replies
8
Views
2K
High School Acceleration & Speed: Effects Per Second?
  • · Replies 3 ·
Replies
3
Views
1K
Undergrad Finding Tension in a Rotating Ring: A Constant or Changing Value?
  • · Replies 5 ·
Replies
5
Views
2K
Undergrad Understanding Newton's Law of Cooling and Its Derivation | dQ/dt = KA(dT/dx)"
  • · Replies 5 ·
Replies
5
Views
3K
High School How do environmental conditions affect the way we hear traffic noise?
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad Low tech telecommunications (sound)
  • · Replies 16 ·
Replies
16
Views
2K
Undergrad Projectile Motion here then simulated in a different gravity
  • · Replies 8 ·
Replies
8
Views
2K
Undergrad Watching Hawks in Nature: Is My Thought Correct?
  • · Replies 6 ·
Replies
6
Views
1K
Undergrad Rigid body physics simulation math issue
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad Boiling point and vapour pressure
  • · Replies 10 ·
Replies
10
Views
4K
Undergrad Lifting boxes of different sizes
  • · Replies 3 ·
Replies
3
Views
2K
Undergrad Setting up vector equations for problem solving
  • · Replies 3 ·
Replies
3
Views
1K
Undergrad Angular momentum proof not understanding?
  • · Replies 2 ·
Replies
2
Views
1K
Undergrad Basics of Fluid Mechanics and Pressure
  • · Replies 50 ·
2
Replies
50
Views
6K
High School Solving Work Done Problems in Physics
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad Cylindrical tank vs conical tank
  • · Replies 5 ·
Replies
5
Views
12K
High School Is planetary angular momentum
  • · Replies 7 ·
Replies
7
Views
2K
Undergrad What does ##\bar{x}_{\textrm{el}}## represent?
  • · Replies 3 ·
Replies
3
Views
2K
Graduate Can Sound Energy be Harvested and Stored using Piezoelectric Materials?
  • · Replies 11 ·
Replies
11
Views
4K
Graduate Radius of curvature along a spring
  • · Replies 2 ·
Replies
2
Views
3K
Graduate A question on the commutativity of finite rotations
  • · Replies 9 ·
Replies
9
Views
2K
Undergrad Coefficient of restitution and velocity
  • · Replies 7 ·
Replies
7
Views
4K