PreparED Study Materials
PHYS 14652: Descriptive Astronomy
School: Grand Valley State University
Number of Notes and Study Guides Available: 0
Videos
Calculating Jet Engine Thrust for Cruising Speed
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Dive into the world of aviation as we calculate the thrust required for a medium-sized jet to maintain a cruising speed of 230 m/s at a specific altitude. Explore the impact of air density and drag coefficients on aircraft performance.
How is work related to energy?
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Explore the profound link between these two fundamental concepts in physics, and understand how they relate through the Work-Energy Theorem.
Determining Kinetic Friction with a Spring-Loaded Block
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Understand how to determine the coefficient of kinetic friction using a wooden block and a spring. Employing the law of conservation of energy, we use the spring's compression and stretch measurements. Through energy equations and Newton's second law, we deduce that ? equals 0.4.
Calculating Work from Speed Change: Water-Skiing Physics Explained!
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Explore the physics behind a water-skier accelerating from an initial speed to a faster one. Learn how to calculate the work done using the change in kinetic energy. Understand the principle of energy conservation through real-world examples.
Sedna: Solar System's Most Distant Object's Motion
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Journey to the outer reaches of our solar system with a captivating exploration of Sedna, the most distant-known object discovered in 2003. This enigmatic celestial body boasts a 1700 km diameter, a 10,500-year orbit around the sun, and a maximum speed of 4.64 km/s. Join us as we delve into the calculations of its elliptical orbit, its minimum speed, and the intriguing variations in its kinetic energy. Uncover the mysteries of Sedna's motion in this educational video.
Highway Lane Dividers: Musical Notes & Speed Calculation Explained
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Discover the physics behind the musical notes produced when car tires interact with highway lane dividers. This video explains the "stick-slip friction" phenomenon and its relation to tire vibrations. Learn how analyzing sound frequencies can offer insights into vehicle speeds



















