Et
Velocity (meters/second)
5
X
3 4
Time (seconds)
In the graph which two regions show the particle undergoing zero acceleration and negative acceleration respectively?
A
B.
BC shows zero acceleration, and AB shows negative acceleration
AB shows zero acceleration and CD shows negative acceleration
C
BC shows zero acceleration, and CD shows negative acceleration
AB shows zero acceleration, and BC shows negative acceleration
D.

If a simple machine reduces the strength of a force, what must be increased?

Ametal ring 4.20 cm in diameter is placed between the north and south poles of large magnets with the plane of its area perpendicular to the magnetic field. these magnets produce an initial uniform field of 1.12 t between them but are gradually pulled apart, causing this field to remain uniform but decrease steadily at 0.240 t/s . (a) what is the magnitude of the electric field induced in the ring? (b) in which direction (clockwise or counterclockwise) does the current flow as viewed by someone on the south pole of the magnet?

Rank the six combinations of electric charges on the basis of the electric force acting on q1. define forces pointing to the right as positive and forces pointing to the left as negative. rank positive forces as larger than negative forces. q1,q2,q3 = positive(+) q1 = + q2 = + q3 = - q1 = + q2= - q3= + q1= - q2= + q3= + q1= + q2= - q3= - q1,q2,q3 = negative