Question

Please answer the question in attachment.​

Answer 1

Pressure is the force applied perpendicular to the surface of an object per unit area over which that force is distributed. Gauge pressure is the pressure relative to the ambient pressure. Various units are used to express pressure.

Answer 2

${3}^{ - 5} \times {2}^{ - 5} \times {5}^{ - 5} \times {5}^{ 3} \div {5}^{ - 7} \times {3}^{ - 5} \times {2}^{ - 5} \times {5}^{ - 5 } \\ atq \\ {3 }^{ - 5} and {3}^{ - 5} will \: be \: cutted \\ and \: {2 }^{ - 5} and \: {2}^{ - 5} will \: be \: cutted \\ {5}^{ - 5} + {5}^{3} = {5}^{2} and \: {5}^{ - 7} + {5}^{ - 3} ={5}^{ - 10} \\ = {5}^{2} - {5}^{ 10}$