PLA help if you understand

Zeros that follow non-zeros numbers and are also to the right of a decimal point are significant

Find v(t), given acceleration a(t)=7j and initial velocity v(0)=k

Avery long solenoid of inner radius 2.75 cm creates an oscillating magnetic field of the form = for this solenoid, =0.00425 t and =319 rad/s. (a)what is the maximum value of the induced electric field at a perpendicular distance 1.45 cm from the axis of the solenoid? (b) what is the maximum value of the inducted electric field at a point 5.85 cm perpendicular from the axis of the solenoid?