Mechanics Forum

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High School What happens to a ball thrown forward vs. backward in a moving train?
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Graduate Are harmonics "real" in a vibrating string?
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Undergrad Clarification Rq for linear density
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Undergrad How does ultrasonic oscillation reduce sliding friction?
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Graduate On the width of the kinetic energy distribution of a gas
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Undergrad Why is milk smoother and flatter than water?
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Undergrad Opposing force of the axle when a torque is applied to a wheel?
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Undergrad What Is the Coefficient of Kinetic Friction for Greasy Aluminum on Carbon?
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Graduate Periodic Boundaries in Molecular Dynamics Simulations
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Undergrad Is jumping up in a falling elevator possible?
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Graduate Conservation of Energy of the Center of Mass
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Graduate Expositions of why theoretical attempts failed
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High School What force causes a balloon to float?
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Graduate Understanding Poincare's recurrence theorem
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Undergrad Force on a rigid body inside a liquid flow
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Undergrad Battery Voltage: Potential & Chemical Reaction
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Undergrad Reason for Calculating Surface tension
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Undergrad Can a cornering motorcycle go faster if the rider puts a knee down?
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High School Can a Fire Tornado Flip an 8 Ton Truck?
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Graduate What is the derivative of velocity with respect to position?
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Graduate Point sized particle collision and no transfer of energy
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Undergrad ##v_{rms}## in the Kinetic Theory Of Gases
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Graduate Superionic and metallic states of water and the Anomaly of Water
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Undergrad Need help trying to mimic a phenomenon associated with air pressure
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High School Why does a spinning top balance better when it is spinning?
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Graduate Some questions about chromodynamics
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High School Radial acceleration derivation with minimal knowledge
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Graduate Motorcycle at max lateral acceleration
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4K
Undergrad A rider cornering at maximum g
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High School Deliberate riseball (dimple) from a baseball pitch
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2K
High School Conservative and Non Conservative Forces
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High School What is the reason behind including ##2π/T##?
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Undergrad What is the tension force at the top of a spring?
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3K
Undergrad Conversion of angular momentum to linear momentum
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Undergrad Personal Jet Boat Water Craft Thrust Question
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2K
Graduate Coupled pendulum with external force?
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Undergrad Calculate friction in an unusual manner.
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Graduate Can Wind and Water Sounds Be Distinguished in Nature?
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Graduate 1D string on a cylinder and torus.
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Graduate How does dynamical mass generation works ?
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High School Can a blow dryer make a ping pong ball hover and spin?
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Undergrad Rod Cross' collisions, sports balls, and silly putty
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Undergrad Bernoulli's Equation and water rockets
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High School Why Does a Rope Bend? Understanding the Tension and Forces at Play
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Undergrad Calculating Torque needed to raise an object
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Undergrad Speed measurement -- Limitations to "instantaneous" measurements?
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Undergrad Understanding Torque and Inertia: How Does it Affect Motion?
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Undergrad Excess pressure inside a Liquid drop
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Undergrad Linear Force to Torque Conversion
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High School Need someone with some good CAS
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Graduate Momentum at time t and at a time t+dt for a rocket
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High School Is there an analytical solution to this equation?
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Graduate Rolling without Slipping - axes of rotation and centripital acceleration
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Undergrad What is the derivation of the radial acceleration in Kepler's 1st Law?
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High School Resistive force that a nail will have to overcome to penetrate a piece of wood
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Graduate How to express space-dependent acceleration?
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Undergrad In circular motion - centripetal acceleration is never there
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Graduate How Does Angle of Incidence Affect Deodorant Dispersion in Physics IA?
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Undergrad Measure flow rate with a manometer (pressure gauge)
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Undergrad A question regarding Bernoulli's equation
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High School How does the Gallilean Invariance Puzzle challenge our understanding of motion?
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Undergrad Why is this SHM the way it is?
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Graduate Finding the potential energy if force depends on both position and time
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Graduate Angular Momentum Vector and Torque Vector
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Graduate Transition time from one steady-state Speed to another for a cyclist
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Undergrad Deriving the kinetic energy equation?
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Undergrad Surface Tension and Capillary Rise
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Graduate Work-KE theorem and net force....
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High School Calculations relating to a pneumatic launcher
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High School Coriolis problem - Point mass movement upon release from Earth
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Undergrad Hydraulic pressure/flow -- friction loss question
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Undergrad Average speed needed to flip a vehicle
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Graduate Is the Stress in a Twisted Helical Spring Caused by Torsion or Bending?
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Graduate Why does the potential of A decrease when plate B is nearby?
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Undergrad Carbon Dating Gases: Is It Possible and What Can We Learn?
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High School What does this mean ##U=\int F\times d\vec{r}## in the Work-Energy Theorem?
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Undergrad Is Bernoulli's Equation related to the Conservation of Mechanical Energy?
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Undergrad Weight distribution of 2 configurations
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Graduate Adiabatic approximation in the derivation of the speed of sound
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Undergrad Palmgren-Miner equation derivation
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High School Gravity on the surface of hollow spheres
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Undergrad Defining the Centroid, Centre of Mass, Centre of Gravity for 2D/3Dshapes
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Undergrad Question about a u-tube manometer with different diameters
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Undergrad The aerodynamics of a car (calculating downforce)
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Undergrad Time to Equilibrate 0C Copper & 75C Water
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Graduate Why Does the Kinetic Energy Formula for Ag Atoms Use 2kT Instead of (3/2)kT?
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Undergrad How to emulate the sound of a ringing bell?
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High School Good equation for calculating RPM of a wheel?
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Undergrad How does my book get ##\frac{1}{2}## by this derivation?
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Undergrad Belt and Pulleys - Centrifugal Forces
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Undergrad A question about potential energy and work
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2K
High School Factors affecting surface tension
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Undergrad Measuring the force between air molecules
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1K
High School Uncovering the Complexities of Streamlined and Steady Flow in Fluid Dynamics
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Graduate One dimensional elastic collision
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High School Forces inside a moving elevator
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Undergrad How to define "energy" and "work" without using either word
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Graduate What Do Newton's Laws Say When Carefully Analysed
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Undergrad Predictive Dice Roll: Physics & Accuracy
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Graduate Correct understanding of the tension force
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