Mechanics Forum

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Undergrad In what circumstances does a gas do positive work?
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4K
Graduate Two errors about rotations in Goldstein's "Classical Mechanics"
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Graduate Coriolis Force and the Earth's Rotation,
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Undergrad Osmotic Pressure within pressure vessel
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Graduate Voltage Output from AC Generators with More Loops
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27
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High School How Can I Safely Obtain a 250v DC Power Supply?
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3
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Undergrad Total acceleration at the bottom of a rolling wheel
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Graduate Bead sliding on a rotating rod
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7
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High School Average velocity, me understand
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23
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3K
Undergrad Forces in Elevators: Net Force 0 but No Weightlessness
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2
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1K
Undergrad Total angular velocity of multiple bodies
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4
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1K
Graduate Double rotation, friction and sum of energy
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26
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3K
Undergrad Is a shorter lever arm more effective in generating angular acceleration?
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12
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Undergrad Violation of energy conservation law?
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3K
High School Why does a bike not fall over when it's in motion?
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8K
High School What is an example of a proper rotation in physics?
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High School Relation between acceleration, mass, and net force.
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High School Why is the motion of a piston considered to be simple harmonic motion?
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3K
Graduate Why does measuring the position of a particle change its momentum?
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7
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2K
Undergrad How to Calculate the Force of Flowing Gaseous Oxygen?
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1
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1K
Graduate Conservation of energy in the LHC
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Undergrad Why does it take more fuel to accelerate a body to a higher speed?
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28
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3K
Undergrad Force components of hanging pith balls
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Graduate Mass, Energy & Inertia: Impact of Trapping Energy in a Box
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Undergrad Implications of Work-Energy Theorem
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5
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High School Kinetic energy physics exercise
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4
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2K
Undergrad Relative angle between two balls with equal mass after collision
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2
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2K
Undergrad Trying to understand Work and Energy
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3
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4K
Undergrad Inertial vs Gravitational Mass "mystery"?
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Graduate Why does superfluid helium in a spinning bucket have angular momentum?
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5
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3K
Undergrad Why is angular momentum conserved?
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11
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3K
Undergrad Why Does an Accelerometer Show Zero During a Ball's Flight?
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10
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Undergrad Potential Energy -- What are the different ways it can be stored?
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Graduate Information transmitted at speeds greater than C
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High School How to tell if an object is moving or not?
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5
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High School Clarifying Hooke's Law: Understanding the Formula and When to Use the Negative
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Graduate Negative work on a moving body
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Undergrad What is the Top Speed of the Megaladon?
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Undergrad Calculate the speed with which a gas escapes from a container?
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Graduate What is the name of the fourth inertial force in a rotating 3-dimensional frame?
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Graduate Problem related to the center of mass of a binary star.
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High School Can Hurricane Pressure Cause Roof Damage Like It Does to My Skin?
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Undergrad Torque vs Centripetal Force: What's the Difference?
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Undergrad Vibration/Centrifugal Force Question
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Graduate Galilean Relativity & Kinetic Energy
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Undergrad Calculating Chest Breach Energy: 9x19mm vs Knife | Jodi Arias Case Analysis
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4
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2K
Graduate Europan water pressure, how does the ice contribute to the pressure?
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2K
Undergrad What are the Forces Behind the Color-Changing Switch Pitch Toy?
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7K
Undergrad Mathematical background concerning classical physics/mechanics.
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Graduate Is the principle of minimum action applicable to nonholonomic systems?
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High School Confused about Boyle's Law, Charles' Law and the pressure Law?
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5
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2K
Graduate Confused about force and work in 3 Dimensions. Line integrals.
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Undergrad Understanding Centripetal Force & Friction
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4
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Undergrad Trying to derive the equation for an ideally banked curve
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Undergrad Deriving formula for MA of differential windlass
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6K
Undergrad Kinetic energy of a disk that turn around 2 axis
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High School Unequal tension of a rope in a pulley system
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Graduate Cube Projectile Motion: Air Resistance & Cross Sectional Area
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Graduate Can I Accurately Measure Bike Wheel Radius with a Rotating Sensor?
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6
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Undergrad Drag Force from Cable: Calculate & Understand
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Undergrad Conceptual understanding of moment transfer for bouncing ball
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1
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High School Calculating total kinetic energy of a car at a given velocity
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High School Rotational Kinetic energy of a Hypothetical Planet?
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Undergrad How do contact forces affect collisions and object launches?
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High School What quantities are used to measure potential energy and forces?
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9
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Undergrad Blade Runner -- Prosthesis propulsion question
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1
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1K
Undergrad Atwood Machine Problem: Analyzing Friction & KE
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3K
Graduate Energy-Momentum tensor components for complex Klein-Gorden field
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Undergrad Conceptual angular momentum question
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Undergrad Bat Hits Baseball - Force & Time Calculation
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Undergrad Will cars with different mass make a loop in a tunnel with same given velocity?
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High School Conservation of momentum and energy problem
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1K
Undergrad Understanding the Contradictory Definitions of Work Done in Physics Textbooks
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4
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3K
Undergrad How Long Can a Human Stay Airborne in a Vertical Jump?
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Undergrad Water pressure through narrowing funnel
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19K
Undergrad How Does Pressure Vary with Depth in Fluids?
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12
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3K
High School Question about the effect of acceleration on the force of a mass
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6
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1K
Graduate Origin of Friction: Atomic/Sub-Atomic Scale
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2K
Graduate Does the Coriolis Effect Determine the Direction of Curl in Hemispheres?
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3K
Undergrad Is glass the only material you can break with sound?
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Undergrad Conceptual Question on Work and Negative Work
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Undergrad Understanding the Coriolis Force
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7
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2K
Graduate Example of a homogeneous, but not isotropic system
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Graduate Defining a displacement vector not touching the origin
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Undergrad Best way to measure velocity, acceleration and jerk
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Graduate What if Newton's laws were shifted by one time derivative?
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2
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1K
Undergrad Does the speed of sound depend on the observer's relative motion?
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6
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Graduate Recalculation of center of mass on a grid
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Undergrad Why Don't Positive Charges from a Pith Ball Move to a Negatively Charged Rod?
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1
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1K
High School Eveporation of water for slurry
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1K
High School What does the velocity equation prove?
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2
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1K
Undergrad Detailed Physics of the D.C. Motor
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1
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1K
High School What is a Newton? Is it correctly understood?
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High School Acceleration versus time graph
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4
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2K
High School Angular momentum Units a very basic question
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4
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2K
Undergrad Question about Power and Gravity
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8
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2K
High School Understanding Inertia to its Uses and Importance in Physics
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6
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2K
Undergrad Calculating Centripetal Force: Diagramming and Solving for X and Y Forces
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3
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2K
Graduate Calculating Work in an Expanding Gas: Isobaric vs. Isothermal Processes
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8
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Graduate Gravity: Conservative or Non-Conservative?
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