Merry Go Round Example
Merry Go Round Example - Related Videos
11:09
Online Size-exclusion and Ion-exchange Chromatography on a SAXS Beamline
0 Views •
Cited by 40 •
2017
The determination of the solution structure of a protein by small angle X-ray scattering (SAXS) requires monodisperse samples. Here, we present two possibilities to ensure minimal delays between sample preparation and data acquisition: online size-exclusion chromatography (SEC) and online ion-exchange chromatography (IEC).
08:50
Total Internal Reflection Absorption Spectroscopy (TIRAS) for the Detection of Solvated Electrons at a Plasma-liquid Interface
0 Views •
Cited by 9 •
2018
This article presents a total internal reflection absorption spectroscopy (TIRAS) method for measuring short-lived free radicals at a plasma-liquid interface. In particular, TIRAS is used to identify solvated electrons based on their optical absorbance of red light near 700 nm.
07:47
Anti-virulent Disruption of Pathogenic Biofilms using Engineered Quorum-quenching Lactonases
0 Views •
Cited by 7 •
2016
Quorum-quenching enzymes are anti-virulent and anti-bacterial options that can mitigate pathogenesis without risk of incurring resistance, by preventing the expression of virulence factors and genes associated with antibiotic resistance and biofilm formation. In this study, we report a method that demonstrates the efficacy of quorum-quenching enzymes in bacterial biofilm disruption.
11:43
Advanced Animal Model of Colorectal Metastasis in Liver: Imaging Techniques and Properties of Metastatic Clones
0 Views •
Cited by 6 •
2016
The ability of metastatic clones to colonize distant sites depends on their proliferation capacity and/or their ability to survive in the host microenvironment without significant proliferation. Here, we present an animal model that allows quantitative visualization of both types of liver colonization by metastatic clones.
FAQs
At a fixed radius and mass, increasing angular velocity raises tangential speed and increases the centripetal requirement strongly: v = rω, so acceleration becomes rω². The corresponding inward force is mass times this acceleration, meaning that doubling angular velocity would increase the requirement by a factor of four under otherwise unchanged conditions. Speed is therefore a major operating variable.
Static friction or another contact interaction supplies the inward force needed to keep a rider moving with the platform. Its role is therefore mechanical, not merely a source of grip: it connects the platform’s rotation to the rider’s centripetal acceleration. Analyzing that connection helps identify conditions affecting balance and safe operation.
The outward sensation is commonly called centrifugal force, but the circular-motion analysis identifies the required real force as inward, toward the center of rotation. The sensation reflects how the rider experiences the rotating motion, whereas centripetal force describes the force needed to change the rider’s direction continuously. Keeping these ideas separate prevents errors in force diagrams.
The radius influences both speed and acceleration, but the result depends on what remains constant. At fixed angular velocity, increasing radius increases tangential speed because v = rω and gives centripetal acceleration rω². At fixed tangential speed, the expression v²/r shows that increasing radius reduces the required centripetal acceleration. This distinction matters when comparing rotating configurations.
For the same radius and motion, a more massive rider requires a proportionally larger inward force because force equals mass multiplied by centripetal acceleration. The acceleration needed for the circular path does not depend on mass when speed and radius are fixed, but the force needed to produce that acceleration does. This separates motion requirements from force requirements.
First identify the rider’s radius and the platform’s angular velocity. Use v = rω to find tangential speed, then calculate centripetal acceleration with v²/r. Multiplying that acceleration by mass gives the required inward force. Finally, identify whether static friction or another contact interaction supplies it, allowing the result to be connected to balance and operation.
The model provides a way to evaluate how angular speed, radius, and mass influence tangential motion and inward force requirements. In amusement rides, it helps relate rider position and platform motion to balance and safety considerations. In rotating machinery, the same reasoning supports interpretation of how changing operating conditions alters the forces associated with circular motion.