<span>The magnetic field produced by a current has three distinct characteristics. The field can be turned on or off, have its direction reversed, or have its strength changed.
Therefore the correct answer is D. All of the above</span>
v = u + at
25 = 0 + a(14)
a(14) = 25
a = 25/14
a = 1.71 (3sf)
explanation:
u use the equation of motions
v = u + at
v is final velocity, aka 25
u is initial velocity, which is 0 as it was initially at rest
t is time, which is 14s
then u sub in the values and calculate a
The relation between frequency and wavelength is: