Answer:
speed and direction
Explanation:
Acceleration is the rate of change of speed and direction.
Answer:
C. 
Explanation:
Let initial charges on both spheres be,

When the sphere C is touched by A, the final charges on both will be,
#Now, when C is touched by B, the final charges on both of them will be:

Now the force between A and B is calculated as:

Hence the electrostatic force becomes 3F/8
The 'Rite of Spring' was composed by Igor Stravinsky.