A steel ball, at rest, with mass of 10g rolls down a ramp of 200m from a height of 18 meters. It takes 20 seconds to roll down the ramp. What is the initial velocity, final velocity, and acceleration of the ball?

Determine the amount of work done when a crane lifts a 100-n block form 2m above the ground to 6m above the ground

Why do electron microscopes have higher resolving power than light microscopes?

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