What is a quantitive x vs t graph

If you touch a hot light bulb and get burned, that is an example of a. radiation b. convection c. conduction

=force × distance a. work b. velocity c. pressure d. momentum

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