The diagram below shows snapshots of an oscillator at different times. What is the frequency of the oscillation? A B t=0.0 t=0.30 $ C t=0.45 s E t=1.35 s F t-1.80 s t=0.90 s fum I +0.10 m -0.10 m... (Unit = Hz)​

Alightning strike consists of charge moving from a cloud to the ground . in one particular case, the electrons in a lightning strike are confined to travel within a radius of 1.5 m and to move at a speed of 5.0 x 10 m/s. if the density of electrons in the strike is 10'15 electrons/m what current is carried by the lightning ?

What are two different ways you could find the value of a? explain these methods.

The charge on an electron is 1.60218 × 10−19 c and its mass is 9.10939 × 10−31 kg. how strong a magnetic field must be experienced by the electron if its path is a circle of radius 5.5 cm? answer in units of t.