Afigure skater with a moment of inertia of 8.30 kg m2 spins with an angular velocity of 2.30 rad/s. she then pulls her ams in close to her body so that her moment of inertia reduces to 5.13 kg m2, what is her new angular velocity? a. 3.66 rad/s b. 1.42 rad/s c. 3.72 rad/s d. 13.4 rad/s 34. an elastic band with a spring constant of 21.9 n/m is 12.3 cm long at equilibrium. you stretch the elastic so that its total length is now 17.1 cm. how much elastic potential energy is stored in the spring? a. 252 j b. 0.324 c. 1660 j d. 0.0252 j 35. a cord passing through a frictionless, massless pulley has a 2.25 kg block tied to one end to the left of the pulley and a 6.33 kg block tied to the other end on the right of the pulley. assuming that the blocks started at rest what would their speed be after 1.50 s? a. 24.0 m/s b. 6.99 m/s c. 4.53 m/s d. 9.47 m/s

an energy transformation flow diagram is shown

where is it ?

the entire statement is true and correct.  

there's no diagram, nothing is illustrated, and no question is asked.

speed of light in vacuum is 300,000 km/s

speed of light in other mediums is given by the expression v = c/n, where c is the speed of light in vacuum and n is the refractive index of medium.

for the first medium v = 200,000 km/s

  so, refractive index of medium = 300000/200000 = 1.5

    1.5 refractive index is usually for glass. so first medium is glass.

for the second medium v = 250,00 km/s

so, refractive index of medium = 300000/250000 = 1.2

    1.2 refractive index is usually for water. so second medium is water.

for the third medium v = 0 km/s

so, refractive index of medium = 300000/0 = ∞

    ∞ refractive index is usually for opaque mediums. so third medium is opaque medium.