An O2− ion moves from a region where its electric potential energy is 12.0 × 10−18 J to one where its electrical potential energy is 7.6 × 10−18 J. Use e = 1.602 × 10−19 C. a. What is the change in potential energy?
b. What is the change in electrical potential (i. e. “voltage”)?

Abug is 12 cm from the center of a turntable that is rotating with a frequency of 45 rev/min . what minimum coefficient friction is required so that the bug stays on the turntable?

Explain the consequences of this addiction to the brain tissue

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