Between 1950 and 2000, the number of independent states

a. remained the same
b.increased slightly
c.decreased slightly
d. increased significantly
e.decreased significantly

definatly not D because it is not the coolest thing?

la masa de un cuerpo = 67.308 kg

Explanation:

De la pregunta, sabemos que,

magnitud de fuerza (F) = 350 N = 350 Kg / m /

Aceleración (a)= 520 cm  / = 5.20 m /

A encontrar: la masa de un cuerpo (m)

Nosotras sabemos que, F = m *a

m =

   =

   = 67.308 kg

Entonces, la masa de un cuerpo = 67.308 kg