PreparED Study Materials
PHYS 021: Introductory Physics II
School: Lehigh University
Number of Notes and Study Guides Available: 6
Notes
Videos
Triangle Masses: Net Force and Side Length Effects
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Discover the gravitational forces at play in a triangle of masses in this video. We calculate the net force on each mass and explore how changing the side length impacts these forces. Join us for a gravitational journey through physics.
Electric Force Between Spheres Doubled Separation
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
In this enlightening video, we unravel the mysteries of electric charges and forces. Discover the fascinating concept of how the separation between two identical tiny spheres, each carrying the same electric charge, influences the force they exert on each other. Will the force double, become one-quarter as large, or remain unchanged? Join us to explore the intriguing world of electrostatics and the principles that govern electric interactions.
Calculating Electric Charge: Coulomb's Law Demystified
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Unlock the secrets of calculating electric charge using Coulomb's Law and discover the fascinating world of electrostatic forces. Learn how to determine the charge on two spheres, spaced 20.0 cm apart, and understand the role of elementary particles in this physics tutorial.
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.
Calculating Ball Displacement Off a Table: A Physics & Calculus Insigh
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Learn how to compute the displacement of a ball rolling off a table using calculus. Through the integration of velocity over a specific time interval, determine the ball's position. Uncover the mathematics behind real-world motion scenarios.
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution










