In which type of process is there no change in the pressure of the system?
a) adiabatic
b) isolated
c) isobaric
d) isothermal

Could someone me find the answer to this problem.

Determine the change in width a, height b, thickness t when a plate is subjected to the uniform distributed load and is made of material having modulus of elasticity e=230 gpa and poisson's ratio ν=1/3. given : a=400 mm and b= 300 mm also the uniformly distributed load in downward y direction of plate is 2 mn/m and in the positive x direction is 3 mn/m and t=20 mm

If the force applied to an object remains constant, is more power needed for the object to move faster ? explain