1. A un objeto que se mueve, inicialmente, a una velocidad uniforme se le aplica una fuerza en la dirección contraria a su movimiento. Si la magnitud de la fuerza es de -62.7N y la masa del
objeto es de 6.27kg, ¿qué aceleración sufrirá el objeto mientras esta fuerza actúa?
(4 Points)
-75m/s2
-10m/s2​

this a false

explanation:

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.

answerscientific theory;