Question

Help please !!!! 77.

Answer 1

number 77

Answer 2

@rebeccaxhawaii

Answer 3

We know current I is given by \[I=\frac{ dq }{ dt }\]
So, differentiating above eqn we get
\[I=\frac{ dq }{ dt }=3t ^{2}-6t+4\]
Putting value t=4s
We get the answer I=28s