Homework Statement
What is the speed of impact of electrons with the screen of the picture tube? Answer in units of m/s.
Electrons are accelerated through a potential difference of 15500 V
Charge of electron: 1.6 x 10^-19 C
Mass of electron: 9.11 x 10^-31 kg
Energy of electrons when they hit...
Homework Statement
Rosie (mass 58 kg) pushes a box with a horizontal force of 170N (38.216 lb) at a speed of 16 m/min. What is Rosie's power output? Answer in units of W.
Homework Equations
Work/Time = Power
MGH/T = Power
.5MV^2 = Power
The Attempt at a Solution
58(.2667...