In 20
seconds of freefall, an object will travel approximately
1.96
kilometers. What is this value expressed in centimeters, and written in scientific notation?

1.96
∗
10
3
cm

1.96
∗
10
5
cm

1.96
∗
10
4
cm

1.96
∗
10
6
cm

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?

The energy equivalent of the rest mass of an electron is