PHYS 121 Lecture Notes - Lecture 26: Nissan L Engine
Document Summary
All diagrams taken from "l26_dissapative_interactions_and_gravitational_energy. pdf" on the course canvas website. Gravitational potential energy: objects near the surface of the earth fall with constant acceleration toward the ground with magnitude g = 9. 8 m/s2 (neglecting air resistance. Quiz: a 1-kg box is moved from an initial position of (0m, 0m) to a final position of (10m, Rank the paths by which the box is moved in order of the change in gravitational potential energy. Path a: the box is first moved horizontally to (10m, 0m) then moved vertically to the final position. Path b: the box is first moved vertically to (0m, 5m) then moved horizontally to the final position. Path c: the box is moved in a straight line to the final position. A: all are equal, they end at the same height, gpe is independent of the path taken. Quiz: three balls of equal mass are fired simultaneously with equal speeds from the same height h above the ground.
