Mechanics Forum

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Dl (dot) r hat in computing potential?
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Should you always indicate velocity is a vector?
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Angular Momentum Transfer in Waves: Exploring the Mechanisms Behind the Twist
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Feynman lectures - elastic materials - eqn 39.22
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Pressure/Flow Fluctuatons of a nozzle
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What are the physics of stepping at a normal speed but quietly?
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Bernoulli's Equation and tube vacuum
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Can acceleration overcome a constant force
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How does time work? I understand that it's an unknown entity, but I
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Can I Circumnavigate the Earth in 24 Hours?
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Drag Coefficient (Cd) values for I-beams, Channels, etc.
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Understanding Rotational Motion: Explained by a Scientist
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Center of Mass and Inertia Tensor Experimentation
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Helicopter Propeller Rotation: Explained
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Linear momentum conservation vs mecanical energy conservation
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Discover the Best Pool Cue Weight for Maximum Striking Power
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How to understand flow of air in a car
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Rotational Kinetic Energy and Conservation of Momentum
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Head First: Falling w/ Initial Zero Angular Momentum
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Ultrasonic waves through pressure
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Elastic Collision: Momentum & KE - What's the Difference?
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Harmonic conjugate of potential function
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Finding thickness of paper based on rate of change of radius and constant speed
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How Does Sound Travel on the Moon?
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5
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Yaw Control Dynamics for VAWT Turbines
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Potentials which depend on positions of two particles
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Building a Low Speed Wind Tunnel: Fan/Motor Size Considerations
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10
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What is a Particle Accelerator?
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1
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Motion of a very long rod: Would we be able to see the wave propagation?
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15
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Exploring Longitudinal Wave Dynamics: Theoretical vs Numerical Analysis
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10
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Will weight of flying mosquito in a jar affect its weight ?
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While using equations of circular motion why do we need to express all
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Projectile trajectory : calculating gravity and height
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Torque Application: Simple Q&A Diagram
2
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Here's a question for you on inertia
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Why does bass have a higher tendency to move objects compared to treble?
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1
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Mass and Weight - which do scales show?
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16
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How much will my pool water rise when it turns to ice?
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Physics of a diver used in trolling?
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Finding mass, knowing velocity but not momentum.
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4
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16, interested in Quantum physics; help with project (not homework)
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Newton's Law of Gravitation Feynman Lectures
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Which one will have greater kinetic energy.
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Analyzing the motion of a plastic bottle down an elevated ramp
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Hi PF,I have been working quite heavy shifts of late being a truck
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4
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Kinetic Energy Equation/Simple Explanation?
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8
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A bottle of water at 0'C is opened on the surface of moon. What happens and why?
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Kinetic Energy With Only Area, Density and Speed
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Turning car Centripetal Acceleration behavior?
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2
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Did Einstein's theory built upon Newton's work?
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Kinetic Energy vs Burger Energy
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What is the mechanism of small holes in auditorioms used as sound
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Debunking Claims about Bypassing Newton's 3rd Law and Conservation of Momentum
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17
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Circular motion related to 1 dimension?
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5
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Collision between two bodies with same mass
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5
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Friction forces playing the role of centripetal force
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Comparing Large & Small Bodies Using Gravity & Surface Tension
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Could a model rocket be launched into space by balloon?
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16
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Feynman's Infinite Pulley Problem
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Car gyroscopic effect problem/doubt
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4
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Exploring physical concepts (buoyancy, air drag) but afraid of the math.
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15
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Can the Biot Savart law be used in a medium where the permeability changes?
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4
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Is the movement of winds due to coriolis or centripetal force?
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Conservation of Energy and Virtual Work
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25
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Increased Density Results in Decreased speed of sound?
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4
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12K
Question on forces/friction acting on wheel
2
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51
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A question about conditions for Weightlessness
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5
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Newton's Shell Theorem Question
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What is the angle made by the ramp and the floor in a bowling ball problem?
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1
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Average Speed Vs. Direct Average?
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5
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Is the unit of torque Nm or Nm/°?
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2
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Kinetic Energy and relative momentum
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Converting Helium back to Hydrogen?
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4
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What does negative acceleration really mean?
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Atmosphere's Rotation: Is Earth's Speed the Same?
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10
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Resonance of water in a sphere
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Potential energy in the equipartition theorem.
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1
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Feynman exercises bead parabola accelerometer
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Efficiently Lift 10KG with a Small Winch Motor - Expert Tips and Tricks
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Does a Jumper Drop Immediately When Jumping Out of a Plane?
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6
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Predicting model rocket height (with and without drag)
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Friction questions, How does a car turn?
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7
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Two Questions: viscosity and sound
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16
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Is Work Only Calculated from Net Force in Physics?
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Conservation of momentum and force of friction (static)
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Boiling point and vapor pressure
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Accelerating mass: how to compute
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Why does sound reflect and create an echo in certain conditions?
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2
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Carrying Weight: A Person-to-Person Analysis
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Direction of Work: Electron-Electron Repulsion
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Effects of different types of vacuum at equal pressure
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Does weight change in an elevator?
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Impact force on a bike off a 6 foot drop?
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2
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Why must vertical acceleration always be negative on projectile motion?
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Does clutch control affect torque output in cars?
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Velocity of Pulley and String in Constrained Motion
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Where does the kinetic energy go when a man moves on a spinning roundabout?
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14
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Breakthrough Miniature Accelerator
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Conservation of momentum in a robot taking a step
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2
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Molecular work in an Adiabatic process ?
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4
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