Question

please solve this problem quickly I need explanation please and I will mark as brain list please please​

Answer 1

Answer:

A precaution is an action taken in advance to prevent something negative from happening or to lessen the impact of the negative thing if it does happen. This sense of precaution is often used with the verb take, as in take precautions or take every precaution.

Explanation:

I hope it is helpful for you

Answer 2

Explanation:

F(magnetic)=q(v x B)            [x is cross product here]

or  F=q v b sin A                  [A is angle between v and b,which is 60 deg]

Velocity is doubled ,B is tripled.

New Force=q(2v)(3B)sin A

                 =6qvBsinA

                 =6F(magnetic)