An electron is accelerated from rest through a potential difference 12 V. What is the change in electric potential energy of the electron?

Aball has an initial velocity of 3 m/s. if there is no friction, what is the highest it could roll?

The particle p starts from rest at point a at time t = 0 and changes its speed thereafter at a constant rate of 2.8g as it follows the horizontal path shown. determine the magnitude and direction of its total acceleration (a) just before point b, (b) just after point b, and (c) as it passes point c. state your directions relative to the x-axis shown (ccw positive) and choose the angle with the smallest magnitude.

Are formed where bumps from two surfaces come into contact ?