Fifteen identical particles have various speeds: one has a speed of 2.00 m/s, two have speeds of 3.00 m/s, three have speeds of 5.00 m/s, four have speeds of 8.00 m/s, three have speeds of 9.00 m/s, and two have speeds of 15.0 m/s. Find: a. the average speed
b. the rms speed
c. the most probable speed of these particles.

a)  

b)

c) Generally the most probable speed is 8m/s as it the most posses by particles being the average

Explanation:

From the question we are told that:

Sample size N=15

Generally the equation for Average speed is mathematically given by

Therefore

b)

Generally the equation for RMS speed of the particle is mathematically given by

c

Generally the most probable speed is 8m/s as it the most posses by particles being the average

i believe the answer would be:

d. violin, clarinet, french horn, and tuba

i think the answer is a, hope this : )