-1/4
Solve for j and Tj than you have
-j=4Tj
4T=-j/j
4T=-1
T=-1/4
The answer is c. types of medium
Snell's law is generally true only when:
1) the beam of light is monochromatic (of one single wavelength, as for example laser beams)
2) the media through which the light beam travels must be isotropic (uniform in all directions, as for example glass)
In these conditions:
sin (r) / sin (i) = n₁ / n₂ = λ₂ / <span>λ</span>₁
For this case what we must do is calculate the centripetal force of the object.
By definition, the centripetal force is given by:

Where,
v: tangential speed
r: radius of the circular path
m: mass of the object
Substituting values we have:

Answer:
The centripetal force of the ball is given by:
