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Graduate Newton's Shell Theorem Question
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9
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7K
High School 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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3K
Undergrad Average Speed Vs. Direct Average?
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5
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3K
Undergrad Is the unit of torque Nm or Nm/°?
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2
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15K
Undergrad Kinetic Energy and relative momentum
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3K
High School Why Does It Take 1.4s for 10m Drop at 10m/s?
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2
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2K
Undergrad What condtions u need for zero gravity state?
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1
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2K
Undergrad Finding mass, knowing velocity but not momentum.
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3
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4K
Graduate Usain Bolt's Physics: Derivation Analysis
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2
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3K
Undergrad Newton's Law of Gravitation Feynman Lectures
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3
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4K
High School What does negative acceleration really mean?
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15
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151K
High School Can Mosquitoes Fly Faster Than 80km/h?
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5
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4K
High School Atmosphere's Rotation: Is Earth's Speed the Same?
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10
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4K
Hi PF,I have been working quite heavy shifts of late being a truck
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3
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2K
High School Would gravity affect us differently if we were in the center of the earth.
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7
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3K
Undergrad Settle Bet: How Far Will Golf Ball Land in 5 Secs with 67mph Wind?
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11
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3K
Graduate Quad Thrust Fuel Transit Drive
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5
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2K
Graduate Potential energy in the equipartition theorem.
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1
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Graduate Feynman exercises bead parabola accelerometer
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20
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7K
High School Does a Jumper Drop Immediately When Jumping Out of a Plane?
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6
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2K
Graduate How to interper thrust of the rocket
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3
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5K
Graduate Predicting model rocket height (with and without drag)
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9
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11K
Undergrad Friction questions, How does a car turn?
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7
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15K
High School Dented Cans: Plane Cargo Impact?
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1
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3K
High School Two Questions: viscosity and sound
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16
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3K
Undergrad Conservation of momentum and force of friction (static)
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2
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5K
Undergrad Boiling point and vapor pressure
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1
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4K
Graduate Accelerating mass: how to compute
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2
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3K
Graduate Time for two point masses to collide under gravity
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20
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6K
Undergrad Why do streamlines converge when water flows down?
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4
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6K
Undergrad Why does sound reflect and create an echo in certain conditions?
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2
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3K
High School Carrying Weight: A Person-to-Person Analysis
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4
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Graduate Direction of Work: Electron-Electron Repulsion
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48
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Undergrad Calculating Centre of Mass and Centre of Gravity for a Humanoid Robot
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2
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2K
Undergrad The math of physics in real world situations
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7
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4K
Graduate Gyroscope doubts. Please answer
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6
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4K
Undergrad Effects of different types of vacuum at equal pressure
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2
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3K
High School Does weight change in an elevator?
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7
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5K
High School Why Do Cars Lean Forward When Braking?
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15
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4K
Undergrad Impact force on a bike off a 6 foot drop?
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2
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5K
Undergrad Does clutch control affect torque output in cars?
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21K
Undergrad What are some alternatives for 3D physics simulation software?
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4
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9K
Undergrad Velocity of Pulley and String in Constrained Motion
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1
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3K
Graduate Car gyroscopic effect problem/doubt
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3
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6K
Graduate Eliminating the Euler Angle singularity without quaternions?
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5
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7K
Undergrad Where does the kinetic energy go when a man moves on a spinning roundabout?
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14
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9K
Graduate Breakthrough Miniature Accelerator
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1
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2K
Graduate Conservation of momentum in a robot taking a step
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2
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2K
Graduate Can the Biot Savart law be used in a medium where the permeability changes?
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3
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3K
Is it better to brake or accelerate when hitting a deer while driving?
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13
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29K
Undergrad Hydrostatic Pressure on Sponge
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1
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3K
Undergrad How do I calculate the RPM needed to power my system?
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2
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2K
Undergrad Increased Density Results in Decreased speed of sound?
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3
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12K
High School Can Sitting on My Bed Create a Closed System and Prevent Movement?
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24
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4K
Graduate How do space and time relate to momentum?
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14
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4K
Graduate Angular velocity and rotation matrix
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2
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13K
Undergrad Jet vs. Wheel Efficiency: Which is More Effective for Land-Based Vehicles?
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2
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2K
High School The movement of hockey pucks on an air hockey table.
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6
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6K
High School What would be the force in pounds of 25,000 lbs. moving at 40fps
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15
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3K
Undergrad What Happens When You Subtract Potential Energy from Total Energy?
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12
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15K
Undergrad How does a force create a moment around a point without direct contact?
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3
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2K
High School How long can a 1000W UPS power a 100W device?
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5
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3K
High School Solve the Crazy Physics Problem: Plane Stays Over Earth
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7
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4K
Graduate Converting Helium back to Hydrogen?
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3
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14K
High School How high would a helium balloon rise if it never popped?
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9
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7K
Graduate Angular momentum for combined rotation and translationa about a fixed point
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2
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4K
High School Motorcycle Tunnel Myth: Fact or Fiction?
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17
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7K
Undergrad Turn Coordinator: Understanding Roll & Turn Rates
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8
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3K
High School Inertia vs Momentum: What’s the Key Difference?
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26
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48K
Undergrad Unveiling the Mysteries of Gravity at the Centre of the Earth
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13
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5K
Undergrad Efficiently Lift 10KG with a Small Winch Motor - Expert Tips and Tricks
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3
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5K
High School How if the small RC helicopter Hover but the train is moving?
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10
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9K
High School Perpetual motion (please just give me a chance, it's just a few questions)
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18
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12K
Undergrad Why does pressure affect air ionization?
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1
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2K
Undergrad Forces and torques on aeroplane wings
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13
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7K
High School Submersible Water Pump, 4.3 amps, must work in the water,
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1
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3K
Undergrad Is Work Only Calculated from Net Force in Physics?
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3
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3K
Graduate Calculating Deflection in Ring Fixed at Center with Point Force
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4
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7K
High School Dechlorinator Dosing Pump: Research & Considerations
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4
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5K
Undergrad OIs Work Done on a Gas in Adiabatic Expansion Always Zero?
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7
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4K
Graduate What Balances the Gyroscope's Gravitational and Precession Torques?
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1
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2K
High School Comparing 'Moment of Force' and 'Moment of a Couple
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2
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4K
Undergrad Centrifugal force and direction
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14
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4K
Discovering the Truth: Dead Weight vs. Live Weight in Cats and Humans
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8
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28K
Graduate Available energy in particle collision derivation
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1
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4K
Undergrad What causes the amplification of twists in a hanging chain with a rubber band?
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5
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2K
Undergrad Calculating Pressure Change in Liquid After Adding Weight
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1
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2K
High School Why must vertical acceleration always be negative on projectile motion?
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3
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22K
Graduate Can a Rider Kick a Frictionless Swing into Its Natural Frequency?
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29
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9K
Graduate Beam Theory Constants Question
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4
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3K
High School What is Duty Cycle and How Does it Affect Motors?
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4
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11K
Graduate Molecular work in an Adiabatic process ?
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3
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2K
Graduate Obtaining Lagrange-Euler's equations for a system
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3
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3K
High School Power Supply Output: Connecting + and - to Plates
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4
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2K
Graduate Newton's third breakage in Goldstein's classical mechanics
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5
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4K
Undergrad How Can Gravity Be Expressed as a Function of Density?
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19
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40K
High School Building a science exhibit demonstrating Bernoulli's Principle
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6
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5K
Undergrad Coefficient of lift formula
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7
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27K
High School Pressure reqd. to rupture a tube
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1
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2K
Undergrad Solving J.E = W/V with Dimensional Analysis
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4
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5K