PreparED Study Materials
PHYS 240: General Physics II
School: University of Michigan
Number of Notes and Study Guides Available: 6
Notes
Study Guides
Videos
Projectile Range and Optimal Launch Angles Explained
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Join us in this enlightening video as we explore the fascinating world of projectiles and their optimal launch angles. We dive into the physics behind how a fixed initial speed affects the range of a projectile and why, for most angles, there are two choices that yield the same range. Delve into factors that affect an archer's ability to hit a target, including wind, and learn why a smaller angle, closer to the horizontal, is often preferable. Discover when and why a larger angle may be necessar
Slinky Stretch: Calculating Transverse Wave Speed
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Discover the fascinating world of Slinky physics as we explore the speed of transverse waves when this iconic toy is stretched by a 2.0-N force. Dive into the science behind the Slinky's behavior!
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.
Spacecraft Speed Change in 1 Week with 0.09-N Thrust
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Discover the impact of a 0.09-N thrust engine on a 480 kg spacecraft's speed during 1 week of maximum power operation. Uncover the assumptions involved in this space physics scenario.
Critical Angle for Total Internal Reflection
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Discover the magic of total internal reflection in this video! We explore how a ray of light refracts when traveling from glass into water. Find out the critical angle needed for total reflection, preventing any light from entering the water. Dive into the world of optics and refraction.
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution












