2. Find the acceleration of an object that takes 4 s to go from 10 m/s to 14 m/s. * O a. 28 m/s2
O b. 14 m/s2
O c. 1 m/s2
O d. 4 m/s2

C) 1 m/s^2

Explanation:

Acceleration Formula:

A = Δv / t

Δv = change in velocity

T = time

To find the Δv you must substract the final velocity to the starting velocity

14m/s - 10m/s = 4m/s

A = 4 m/s

T = 4s

A = 4m/s / 4s = 1m/s^2

answer: the correct answer id option(d).

explanation:

snell's law refraction:

the angle of refraction =

the angle of incidence =

refractive index of air = = 1

refractive index of glycerol = 1.47

from the given options, the most closest answer to 63.72° is 65° of option (d).