Question1
In an xray tube, electrons are accelerated in a uniform electric field and then strike a metal target. Assume an electron starting from rest is accelerated in a uniform electric field with 50. KV potential.
What is change in electrical potential energy of the electron?
Question2
While john is travelling along an interstate highway, he notices the mile marker reads 234 km. john travels till he reaches 130 km marker and after that retraces his path to the 163 km marker.
What is john's resultant displacement from the 234 km marker?
Question3
A student slides her 80.0-kg desk across a level floor of her dormitory room a distance 3.00 m at constant speed. If the coefficient of kinetic friction between the desk and the floor is 0.400, how much work did she do?