Question

6. Why are board-pins made sharp?
7. Define pressure and its SI unit.​

Answer 1

Answer:

6.Board pins are made sharp as they can easily penetrate the surface of the soft board so, that pressure is maximum.

7.Pressure—the effect of a force applied to a surface—is a derived unit, obtained from combining base units. The unit of pressure in the SI system is the pascal (Pa), defined as a force of one Newton per square meter. The conversion between atm, Pa, and torr is as follows: 1 atm = 101325 Pa = 760 torr.

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Answer 2

Answer:

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