Question

student wins a Trophy is a metal Cup on a black plastic base the student to clean the trophy she hold one of the metal handles and rub the rest Trophy with a dry cloth

1- why the plastic base does becomes negatively charged?
2- metal cup does not become charged whenshe rub the trophy suggest why the cup does not become changed​

pls answer correctly​

Answer 1

Answer:

Explanation:

Check the correctness of s = UT +1/2at2

s is distance so it's dimensions become L.

Nd other side we have ut+1\2at^2.

Check the correctness of s = UT +1/2at2

s is distance so it's dimensions become L.

Nd other side we have ut+1\2at^2.

as 1\2 is a constant it will have dimensions and apply the dimensions to other quantities.

on solving u will get L there also i,e ur LHS