A24.7-g bullet is fired from a rifle. it takes 2.73 × 10-3 s for the bullet to travel the length of the barrel, and it exits the barrel with a speed of 784 m/s. assuming that the acceleration of the bullet is constant, find the average net force exerted on the bullet.

Explanation:

The impulse or average force in classical mechanics is the variation in the linear momentum that a physical object experiences in a closed system. It is defined by the following equation:

Where:

Asumming v1=0 and t1=0:

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).

i believe the answer would be:

d. violin, clarinet, french horn, and tuba