An unbalanced 16 N force is applied to a 2.0 kg mass. What is the acceleration of the mass? (F=ma)*
A 2 m/s^2
B 8 m/s^2
C 6 m/s^2
D 4 m/s2

B 8m/s^2

Explanation:

a=F/m

a=16N/2kg

a=8N/kg or 8m/s^2

i hope it helps you

speed of light in vacuum is 300,000 km/s

speed of light in other mediums is given by the expression v = c/n, where c is the speed of light in vacuum and n is the refractive index of medium.

for the first medium v = 200,000 km/s

  so, refractive index of medium = 300000/200000 = 1.5

    1.5 refractive index is usually for glass. so first medium is glass.

for the second medium v = 250,00 km/s

so, refractive index of medium = 300000/250000 = 1.2

    1.2 refractive index is usually for water. so second medium is water.

for the third medium v = 0 km/s

so, refractive index of medium = 300000/0 = ∞

    ∞ refractive index is usually for opaque mediums. so third medium is opaque medium.