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How Fast Can a Star Spin Before It Breaks Apart?
New ReviewA neutron star spinning at 1 revolution per second is on the edge of tearing itself apart. This lesson breaks down the physics of rotational stability, showing how gravity and circular motion determine the star's minimum mass.
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How to Apply Blush
Howcast - Let professional makeup artist Patricia Longo teach you how to apply blush perfectly in this makeup tutorial from Howcast.
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How to Apply Powder Foundation
Howcast - Let professional makeup artist Patricia Longo teach you how to apply powder foundation in this makeup tutorial from Howcast.
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How to Dance like Chris Brown at the Club
Howcast - Learn how to dance like Chris Brown in this Howcast club dancing video with expert Tweetie.
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How to Grind at the Club
Howcast - Learn how to grind in this Howcast club dancing video with expert Tweetie.
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How to Do the Higher Level in Reggae Dancehall
Howcast - Learn how to do the higher level in reggae dancehall from the founders of Str8FramYaad Dancehall Aerobics in this Howcast dance video.
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How to Do the Wine in Reggae Dancehall
Howcast - Learn how to do the wine in reggae dancehall from the founders of Str8FramYaad Dancehall Aerobics in this Howcast dance video.
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How to Do the Bogle in Reggae Dancehall
Howcast - Learn how to do the bogle in reggae dancehall from the founders of Str8FramYaad Dancehall Aerobics in this Howcast dance video.
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How to Do Ticking in Reggae Dancehall
Howcast - Learn how to do ticking in reggae dancehall from the founders of Str8FramYaad Dancehall Aerobics in this Howcast dance video.
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How to Shampoo & Condition Hair before a Haircut
Howcast - Learn how to shampoo and condition hair before a haircut from stylist Janet Waddell in this Howcast hair tutorial.
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How to Hula Hoop around Your Chest
Howcast - Learn how to hula hoop around your chest from hula hooping expert Natalie "McFancy" Wise in this Howcast video.
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How to Do the Shampooing Technique during a Head Massage
Howcast -Learn how to use the shampooing technique when giving a head massage in this Howcast video featuring massage therapist Judie Rhed Yim.
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How to Start a Head Massage
Howcast -Learn how to start a head massage in this Howcast video featuring massage therapist Judie Rhed Yim.
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How to Slow Grind at the Club
Howcast - Learn how to slow grind in this Howcast club dancing video with expert Tweetie.
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How to Polish Shoes
You don't have to know how to get them Army-regulation shiny, but you should have some basic training.
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Motion of a Particle in a Semicircle
This content provides a conceptual understanding of average velocity for a particle moving along a semicircular path. It emphasizes that average velocity is calculated based on displacement (the straight-line distance between start and...
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Centripetal Force Explained: Why It's Perpendicular to Velocity
Discover the fundamental reason why centripetal force always acts perpendicular to an object's velocity in circular motion. This video uses a clear visual example to illustrate this key physics concept.
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Physics Problem: Ball in Circular Motion with Two Strings
This content analyzes a physics problem involving a ball connected by two strings to a rotating vertical rod, undergoing circular motion. It demonstrates how to calculate the tension in the lower string, the net force on the ball, and...
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Analyzing Car's Acceleration on a Circular Path
This content analyzes the motion of a car accelerating on a circular path. It explains how to calculate both the tangential and radial (centripetal) acceleration components, then determine the magnitude of the net acceleration and its...
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Normal Force in Circular Motion: Hill and Valley Scenario
This content analyzes the normal force on a driver in a car moving at a constant speed over a circular hill and into a valley. By first using the condition of zero normal force at the top of the hill to determine the centripetal force,...
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Analyzing Net Linear Acceleration
This video solves a physics problem about a car accelerating on a circular track, demonstrating how to calculate its net linear acceleration and the angle it makes with the car's velocity.
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Circular Motion Physics: The 3 Equations of Circular Motion
Understand the physics of uniform circular motion, its requirements, and key formulas like centripetal acceleration. Learn real-world examples, distinctions from non-uniform motion, and the derivation of UCM equations
Curated Video
Linear vs Angular Velocity (Precalculus)
What is the difference between linear velocity and angular velocity? In this video we will derive the formula for linear velocity (or speed) and angular velocity. Then, we will use those formulas and compare and contrast the two rates.