John goes 8 steps north, 3 steps east, 6 steps south, 6 steps west and 2 steps south. what us john's displacement from his starting point?

Abird sitting high in a tree is an example of what type of wnergy

When many atoms are split in a chain reaction, a large explosion occurs. this is an example of what type of energy conservation

The a992 steel rod bc has a diameter of 50 mm and is used as a strut to support the beam. determine the maximum intensity w of the uniform distributed load that can be applied to the beam without risk of causing the strut to buckle. take f.s. = 2 against bucklin