A device used to measure small currents is a(n) a.
electric motor.
b.
commutator.
c.
armature.
d.
galvanometer.

If two metal balls each have a charge of -10^-6 c and the repulsive force between them is 1 n, how far apart are they? (coulomb's constant is k = 9.0x 10^9 n-m^2/c^2? 9.5 m 9.0 mm 9.5 cm 0.9 m .

The graph describes the motion of an object. the object moves with from a to b. it from b to c. it moves with from c to d.

Física: un futbolista patea hacia el arco con una velocidad de 15m/ah, calcular: a)el alcance para un ángulo de tiro de 25? , b) el tiempo que el balón permanece en el aire.