Mechanics Forum

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Work done by force acting on a spring
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37
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11K
Will the Helicopter Appear in the Same Position After One Day?
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10
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3K
Conservation of energy question
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5
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Differculty working out what is doing work in a mass attached to a spring system
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7
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2K
Inertial and Gravitational Mass
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2
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How to figure out the pressure when you pick up a cup upside down in water
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6
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3K
Relationship between the phase and group velocity in a conducting medium
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1
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Kinetic energy - why no g divisor ?
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15
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Explaining Avogadro's Law using kinetic theory
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4
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Photon absorption and momentum recoil
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7
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Can you have a negative average velocity?
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10
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Why doesn't Newton define F=m(a^2)
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32
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Deceleration and Change of Direction
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3
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Integrating velocity with respect to time when velocity depends on position
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4
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12K
First sem. calc physics: Cable tension (vectors and acceleration)
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9
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3K
Rotation around center of mass question
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7
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Can Velocity Be Negative When Acceleration Is Positive?
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2
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Moment of inertia and force needed to tilt/change axis of rotation
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1
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Accelerationg of rotating mass *along* the axis of rotation
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3
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Vector Mechanics Statics question
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7
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2K
Kelvin water dropper generator
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5
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6K
Does Exerting Force on a Stationary Object Require Energy?
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3
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Calculate new water height in container after adding floating object
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1
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7K
Who or What is the Source of Work in Physics?
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1
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Does air friction increase a gunshot bullet's range?
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14
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4K
Calculating Projectile Distance: A Theme Park Curiosity
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6
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3K
Quantification of Levers and Similar Mechanical Devices
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4
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2K
Atomic clocks: day – night speed variations
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6
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3K
Estimating vehicle horsepower and torque
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6
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3K
Measurement of the Speed of sound
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1
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Method to carry out the isobaric process
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3
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4K
In an inelastic collision momentum is conserved, but kinetic energy isn't?
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6
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9K
Do particles and objects trend toward 0 velocity.
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13
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2K
Aerodynamic/hydrodynamic drop pod
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9
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2K
Kinetic Energy in B field (is it really conserved)
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9
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3K
Kinematic Momentum: Is Mass x Volume Correct?
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1
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4K
Torque needed to overcome friction and move object
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1
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4K
Does molecular flatness affect friction differently?
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4
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3K
Paper on colleration between air and sound
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4
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2K
Conservation of angular momentum and spin
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5
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2K
How much force would it require to obliterate a baseball bat?
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4
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9K
How do we decide if a trajectory is 1D, 2D or 3D?
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4
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3K
The Poincare Group: A Study of Second Part of 3.26 and 3.27
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2
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2K
Idea about change in Earth's rotation speed by Climate Change
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2
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3K
Collision, conservation of momentum and energy
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9
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Rotational vs. Translational Energy in Rotation
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2
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2K
Wind speed calculation from a pressure setting
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2
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3K
Elasticity, free energy of isotropic body mismatch
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4
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2K
Could Mesons Occur Naturally and Interact with Matter?
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8
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2K
Buoyancy/Gravity Concept - How to insert buoyant weight into water column?
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7
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5K
Why the significant water level drop?
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8
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2K
Why is water heavier than it looks?
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14
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3K
How Do You Calculate the Force on Screws in a Rotating Cylindrical Vessel?
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3
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2K
Can pressure affect the buoyancy of objects in water or air?
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2
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1K
Puzzled about circular motion (whirling a bung on a string)
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21
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8K
Comparing the Internal Energy of Gasoline and Hydrogen
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1
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2K
What Would Happen If a High Mass Object Hit a Wall at High Velocity Near Me?
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8
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3K
Freezing water of different starting temp.
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3
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2K
Explanation for moving fluids having lower pressure
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33
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5K
Heavy Objects Bouncing: Factors & Variables
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3
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2K
Energy from torque in a ball launcher
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7
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4K
Penetration depth below surface - Free Fall
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1
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2K
Torque on a Free Body: Applying 1N Force to Ruler
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2
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3K
Why Don't Objects Fall in Space?
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14
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Why Does an Object in Free Fall Cover More Distance Than Expected at 10 m/s²?
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2
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2K
Does a change in direction always result in acceleration?
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1
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2K
Change of relative permittivity of liquid and solid water
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5
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6K
Objects of Different Density in Freefall
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7
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6K
Free fall of hatch with a frictional hinge
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10
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4K
Breathing against a fan/pressure I'm confused any help would be great
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15
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4K
Energy lost in toy due to friction?
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1
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2K
3D Rotation of a rigid body in Fixed Axes (Not Axes Rotation)
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16
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10K
Simple argument that a force applied farther from the rotation axis
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35
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6K
Maxima of Two Waves Beating Together: 0 or Infinity?
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2
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1K
Energy conservation law violated(seems to be)
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2
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2K
Measure Phase velocity/group velocity of EM-wave
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3
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3K
Projectile: know only launch velocity, max height, and distance
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6
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How is momentum conserved when external forces are present?
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5
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2K
Why does tap water make sound?
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4
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11K
Lienard-Wiechert potentials. To solve an equation.
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13
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Does a sling or a gun exert more initial force of the projectile?
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4
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4K
Why Do Horizontally Fired and Vertically Dropped Bullets Land Simultaneously?
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2
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3K
What is the relationship between torque and F=ma in rotational motion?
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8
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4K
Solving Projectile w/ Initial Height, Height Max, Horiz Dist.
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9
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16K
Use Archimede's Spiral For Accelerate An Object.
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3
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Poynting vector. Conservation theorem.
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2
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How To Build A Simple Particle Accelerator
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3
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19K
The total sum of forces in circular motion in gravitational field
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1
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1K
What is the general approach for calculating tension in different situations?
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4
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11K
Is angular momentum conserved here?
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20
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4K
What is the Relationship Between the Two Impulses in a Vertical Jump?
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2
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4K
Why Does Treating Variables as Constants Fail in Line Integrals?
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11
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2K
Work Done By A General Variable Force
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3
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Can a thermocouple be used as a power cable?
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12
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3K
Mercury in Freefall: The Impact on Elevator Mechanics Explained
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12
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3K
Some Weird Questions On Aerodynamics
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4
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2K
Why m.N is not a Unit of Torque
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3
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3K
Acceleration needed to go from a point to another
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5
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1K
Projectile Motion - Acceleration and Angles
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2
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2K
Will all four jets produce fountains at the same height?
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7
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2K

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