<span>i believe the answer is
D. Wool is an excellent thermal insulator because heat flows through it very slowly.</span>
The answer is Ultraviolet
Answer:
Explanation:
given,
mass of wheel(M) = 3 Kg
radius(r) = 35 cm
revolution (ω_i)= 800 rev/s
mass (m)= 1.1 Kg
I_{wheel} = Mr²
when mass attached at the edge
I' = Mr² + mr²
using conservation of angular momentum