Answer:
K1/K2=4
Step-by-step explanation:
The kinetic energy of a rotating sphere is given by:

The moment of inertia of a solid sphere is given by

The initial kinetic energy is therefore


The final kinetic energy is given by

Therefore the relation K1/K2 if R2 = 0.5R1

The text says nothing about the final angular velocity just the collapse of the collapse of the radius

Answer: It is B)
Step-by-step explanation: It was 8.66 something and that rounded to the nearest tenth is 8.7
Answer:
( -0.5 , 6.5 )
Step-by-step explanation:
Answer:
5 hours 30 minutes
Step-by-step explanation:
347.50-100 (initial fee)=247.50. 247.50/45= 5.5 hours
Answer:
$22.5
Step-by-step explanation:
Jim gets 9*2.5= $22.5