Question

define thrust and pressure give their s i unit calculate the pressure exerted by a block of hundred Newton in the if the surface area in contact is 2.5 m square how many vibrations win A tuning fork of frequency 280 hertz complete during the same time the sound Travels forward In Air by 20 m take speed of sound in air at 340 metre per second

Answer 1

pressure is the force per unit area it's so unit is Pascal pa