Question

Calculate pressure exerted by a screw on the wooden plank if area of contact of the screw is0.5 mm2 and its weight is 50 N *
A) 105 N / m2
B) 106 N / m2
C) 107 N / m2
D) 108 N / m2

Answer 1

Explanation:

Agriculture is the practice of cultivating plants and livestock. Agriculture was the key development in the rise ood surpluses that enabled people to live in cities. The history of agriculture began thousands of years ago.