Answer:

Step-by-step explanation:
Diameter of the glass sphere, d = 1.1 cm = 0.011 m
Charge on the glass sphere,

Let v is the escape speed of the electron that is launched from the surface. Firstly, calculating the electric potential of the sphere as :

V = 14727.27 volts
The potential energy of the electron cane be calculated as :



Using conservation of energy to find the speed of the electron as :



So, the escape speed of an electron launched from the surface is
. Hence, this is the required solution.