PreparED Study Materials
PHYS 161: General Astronomy 1
School: Towson University
Number of Notes and Study Guides Available: 0
Videos
Calculating Ion Path Radius in a Mass Spectrometer: Electric vs Magnet
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Explore how a mass spectrometer works by analyzing an ion's path through the device. Understand the relationship between electric and magnetic fields in determining the ion's trajectory. Learn to compute the radius of an ion's path within the mass spectrometer.
Lunar Lander Descent: Initial and Final Velocities
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Join us on an exciting lunar adventure as we explore the descent of a lunar lander towards the moon's surface. We'll unravel the physics behind its journey using the equation y(t) = b - ct + dt^2, and answer questions about the lander's initial and final velocities. Get ready to explore the dynamics of space exploration and lunar landings in this informative video!
Monkey and Cart: Impact of Cantaloupe on Speed
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Join us as we delve into the physics of a monkey and her cart, complete with a spring. Witness the intriguing change in maximum speed when the monkey picks up a cantaloupe. Learn how mass and vibrations affect the outcome.
Calculating Jet Engine Thrust for Cruising Speed
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
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.
Understanding the Law of Conservation of Mass in Chemical Reactions
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Explore the fundamental principles of this law, unraveling its implications, and clarifying common misconceptions related to mass preservation in chemical reactions.
The Pricey 'Jenny' Stamp: Calculating Focal Length
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Explore the world of collectible stamps as we delve into the story of the rare 1918 'Jenny' stamp and its astonishing auction price. Join us to learn about the use of a simple magnifying glass to examine this valuable collectible and discover how to calculate its focal length.

















