A 66. 5-kg hiker starts at an elevation of 1270 m and climbs to the top of a peak 2660 m high. (a) what is the hiker’s change in potential energy? (b) what is the minimum work required of the hiker? (c) can the actual work done be greater than this? explain.

What is life ? a: hell b: gods bible c: or depression

The volume of a cylinder is 72 tt cm3. if the radius is 3 cm, what is the height of the cylinder?

Assessment includes a. interviews, recorded conversations, videos, frequency counts, and time samples. b. formal standardized tests and developmental screening tools. c. various types of documented observations, documentation of child work, checklists, rating scales, and standardized tests. d. anecdotal notes, narratives or daily records, daily health checks, and teacher observation checklists.