**Answer:**

**speed of eight ball speed after the collision is 3.27 m/s**

**Explanation:**

**given data **

initially moving v1i = 3.4 m/s

final speed is v1f = 0.94 m/s

angle = θ w.r.t. original line of motion

**solution**

we assume elastic collision

so here using conservation of energy

initial kinetic energy = final kinetic energy .............1

before collision kinetic energy = 0.5 × m× (v1i)²

and

after collision kinetic energy = 0.5 × m× (v1f)² + 0.5 × m× (v2f)²

put in equation 1

0.5 × m× (v1i)² = 0.5 × m× (v1f)² + 0.5 × m× (v2f)²

(v2f)² = (v1i)² - (v1f)²

(v2f)² = 3.4² - 0.94²

(v2f)² = 10.68

taking the square root both

v2f = 3.27 m/s

**speed of eight ball speed after the collision is 3.27 m/s**

**Answer:**

Models use familiar objects to represent unfamiliar things. Models can help you visualize, or picture in your mind, something that is difficult to see or understand. Models can help scientists communicate their ideas, understand processes, and make predictions.

**Explanation:**

the answer is 35.5 to ur question

When white light splits into the spectrum of colors of which it is composed, it is said to have undergone dispersion. Dispersion happens when white light gets separated into colors based on the wavelength of the light. Due to dispersion of light, people can see a rainbow in the sky. I hope the answer helps.