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How can a Photon apparently transfer Momentum without any Mass?
Aug 4, 2017
Replies
3
Views
2K
Potential Energy in 3D: Partial Derivatives
Aug 4, 2017
Replies
3
Views
2K
Find final velocities after elastic collision
Aug 3, 2017
Replies
2
Views
2K
Understanding the force on an item placed on a spring
Aug 3, 2017
Replies
20
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3K
A Question about Loudness of Sound....
Aug 3, 2017
Replies
4
Views
2K
Where is the work done coming from in Helmholtz free energy
Aug 2, 2017
2
Replies
50
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5K
Calculating Shaft Velocity from Torque: A Scientific Approach
Aug 2, 2017
Replies
13
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3K
Uniform circular motion -- How can radial acceleration have a calculated value?
Aug 1, 2017
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12
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2K
Virtual work and D'alembert's principle
Aug 1, 2017
Replies
4
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4K
Acceleration & Force: Lesser Force Impact on Mass
Aug 1, 2017
Replies
5
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1K
Can you change a planet's orbit by reducing its velocity?
Jul 31, 2017
Replies
15
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2K
Question about gravity, water and snow
Jul 31, 2017
Replies
3
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1K
Directional conservation problem with E=cB?
Jul 30, 2017
Replies
8
Views
3K
Are Non-Sinusoidal Sound Waves Just Magic?
Jul 29, 2017
Replies
43
Views
7K
Calculating Impulse and Force: Understanding the Concept Behind It
Jul 29, 2017
Replies
7
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2K
Ceiling fan and impact force on the blades
Jul 28, 2017
Replies
11
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2K
Friction guiding a car around a curve
Jul 28, 2017
Replies
1
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1K
What is the deceleration rate of a fidget spinner?
Jul 28, 2017
Replies
1
Views
2K
Question about bicycles and inertia
Jul 28, 2017
Replies
5
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1K
What Forces Affect a Motorcyclist's Cornering Performance?
Jul 26, 2017
Replies
3
Views
1K
Acceleration of a gas into a vacuum
Jul 26, 2017
Replies
4
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1K
Water Container Force: Impact of Finger Dip on Scale Measurement
Jul 26, 2017
Replies
12
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2K
Determine Mass moment of inertia about any axis given Ixx...
Jul 26, 2017
Replies
4
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2K
Hydrostatic equilibirum in slowly rotating star
Jul 26, 2017
Replies
2
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1K
Sound Waves -- propagating, dispersing, volume effects?
Jul 25, 2017
Replies
10
Views
2K
Pressure Chamber with Flat Door
Jul 25, 2017
Replies
8
Views
2K
Calculating Torque on a Rod: Net Torque, Mass & Distance
Jul 24, 2017
Replies
3
Views
3K
Potential energy and equilibrium
Jul 24, 2017
Replies
18
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2K
What is the smallest possible velocity?
Jul 24, 2017
Replies
25
Views
4K
Expected decay time of a sound based on its relative volume?
Jul 23, 2017
Replies
13
Views
3K
Calculating Projectile Force from Rotational Velocity of a Throwing Sling
Jul 22, 2017
Replies
8
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4K
Derivative of angular velocity of rotating co. system
Jul 22, 2017
Replies
2
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2K
Compressing a bottle with water - initial velocity of water
Jul 21, 2017
Replies
1
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1K
Spin angular momentum converted to orbital energy
Jul 21, 2017
Replies
2
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2K
Predicting lift on an Aerofoil with varying Angles of Attack
Jul 20, 2017
Replies
4
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1K
Rotation vs Translation for elbow joint
Jul 20, 2017
Replies
6
Views
3K
Initial Velocity of a dropped object problem
Jul 19, 2017
Replies
4
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4K
Car - brake locking, stopping distance
Jul 19, 2017
Replies
24
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5K
Weight measurements and gravitational acceleration
Jul 18, 2017
Replies
6
Views
1K
How can two equal and opposite forces produce motion? [EM]
Jul 18, 2017
Replies
17
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2K
What is the correct calculation for angular momentum of a planet?
Jul 18, 2017
Replies
16
Views
3K
Sound: How pleasing to the ear
Jul 18, 2017
Replies
6
Views
2K
Understanding Nuclear Fission in Power Plants
Jul 18, 2017
Replies
1
Views
1K
Momentum density in a Divergent Beam
Jul 17, 2017
Replies
3
Views
1K
Can proton mass be measured without assuming inertia?
Jul 16, 2017
Replies
2
Views
1K
Solve the positions of two masses gravitating toward each other
Jul 16, 2017
Replies
13
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2K
Can someone explain to me these equations of sound waves?
Jul 16, 2017
Replies
6
Views
1K
How can gravity be greater than the centripetal force?
Jul 14, 2017
Replies
2
Views
3K
Supressed harmonics with certain initial conditions
Jul 13, 2017
Replies
1
Views
2K
What is the Physics Behind a Jumping Spider's Impressive Leap?
Jul 13, 2017
Replies
3
Views
2K
Kinetic theory of gases: rebound speed and force questions
Jul 12, 2017
Replies
2
Views
3K
Using a centrifuge to extract heavy water (help with the calculations please)
Jul 10, 2017
Replies
2
Views
3K
Creating an Energy Shield for Cars: Innovative Safety Technology
Jul 10, 2017
Replies
13
Views
2K
Equation for Brownian Motion Trajectory
Jul 10, 2017
Replies
4
Views
2K
Sound propagation with altitude/height
Jul 10, 2017
Replies
28
Views
5K
Air pressure on planes and leak-proof containers....
Jul 9, 2017
Replies
9
Views
8K
Gun-projectile Elastic Collisions
Jul 8, 2017
Replies
13
Views
1K
Why Earth has constant acceleration?
Jul 8, 2017
Replies
2
Views
1K
Need help with gravitational acceleration SI units
Jul 7, 2017
Replies
7
Views
2K
Surface Tension of a soap film
Jul 7, 2017
Replies
16
Views
6K
Can a bullet hit someone while free falling?
Jul 7, 2017
Replies
7
Views
2K
Perpendicular force pulley system
Jul 7, 2017
Replies
4
Views
3K
Underpinnings of conservation of energy/mass
Jul 7, 2017
Replies
2
Views
1K
Understanding Orbital Momentum: The Mysterious Formulation Explained
Jul 6, 2017
Replies
3
Views
1K
A Question about the Speed of Waves....
Jul 5, 2017
Replies
13
Views
2K
Is my Cyclette Generating Enough Power at Resistance Level 4?
Jul 4, 2017
Replies
2
Views
1K
Transfer of Momentum during a collision
Jul 3, 2017
Replies
19
Views
6K
Can you find orbital velocity from circle equation y^2+x^2=r^2?
Jul 3, 2017
Replies
9
Views
2K
Calculating the Speed of a Ball Rolling Down a Hill
Jul 3, 2017
Replies
12
Views
10K
N-body random peak velocity of passing particles
Jul 2, 2017
Replies
9
Views
2K
How Does Box Size Affect Kinetic Energy Calculations in Gas Molecules?
Jul 2, 2017
Replies
1
Views
1K
Apparent violation of momentum conservation in EM
Jul 2, 2017
Replies
2
Views
1K
Question about torque and center of mass
Jul 1, 2017
Replies
6
Views
2K
Kinematics Equations: When to Use Each?
Jun 30, 2017
Replies
9
Views
6K
What happened to the boiling water
Jun 30, 2017
Replies
13
Views
3K
Question from Velocity-Dependent Potential in lagrangian (Goldstein)
Jun 30, 2017
Replies
5
Views
2K
Newtons and Newton meters for pushing a weight
Jun 30, 2017
Replies
29
Views
5K
Experience Hydrodynamic Levitation: A Simple yet Mesmerizing Effect
Jun 29, 2017
Replies
2
Views
2K
Doubt with rotating body and force
Jun 29, 2017
Replies
15
Views
2K
General Physics Question -- Max height of a projectile
Jun 28, 2017
Replies
15
Views
2K
Question - Distributed weight on Camper Tires
Jun 28, 2017
Replies
4
Views
1K
The Physics Behind Why a Rope Breaks When Falling from a Cliff
Jun 27, 2017
Replies
12
Views
3K
Are sounds louder under water?
Jun 26, 2017
Replies
4
Views
4K
Potential energy vs position curve
Jun 26, 2017
Replies
6
Views
1K
Water speed and bullet penetration
Jun 25, 2017
Replies
8
Views
3K
Cannonball - time required to stop its horizontal motion
Jun 25, 2017
Replies
12
Views
2K
Car behaviour on a straight road with a rolling road
Jun 24, 2017
Replies
8
Views
2K
Does air flowing through a tube cause a pressure change?
Jun 24, 2017
Replies
29
Views
5K
Does Increasing Potential Energy Affect the Gravitational Pull on an Object?
Jun 24, 2017
Replies
16
Views
2K
How much force would it take to jump on air?
Jun 23, 2017
Replies
7
Views
12K
Strange behaviour of roulette ball falling
Jun 23, 2017
Replies
2
Views
2K
Kinetic energy and potential energy look very dissimilar
Jun 23, 2017
Replies
10
Views
2K
Question of Leverage in Rotating Mechanisms
Jun 22, 2017
Replies
10
Views
2K
Does Rotating a Gas Container Increase Its Temperature?
Jun 22, 2017
Replies
13
Views
1K
Invariance of elastic potential energy
Jun 21, 2017
Replies
6
Views
2K
Getting energy from kinetic motion of air particles
Jun 21, 2017
Replies
1
Views
1K
Pulleys, Pulleys, and More Pulleys
Jun 21, 2017
Replies
9
Views
2K
Maximum Amplitude of Sound Wave?
Jun 20, 2017
Replies
13
Views
4K
Speed of pendulum at certain angles
Jun 19, 2017
Replies
7
Views
2K
Pulley Carrying Capacity: Can It Handle 150 lbs?
Jun 19, 2017
Replies
9
Views
3K
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