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
Gained in total = 10.
Moved Backwards in total = 3.
But if you keep them all together with the amount taken away, they've only gained 8 yards.
(-2,6) (5,-8)
slope = (y2 - y1) / (x2 - x1)
slope = (-8 - 6) / (5 - (-2) = -14/7 = -2 <==
midpoint = (x1 + x2)/2 , (y1 + y2)/2
m = (-2 + 5)/2 , (6 - 8)/2
m = (3/2, -1) <===
distance = sqrt ((x2 - x1)^2 + (y2 - y1)^2)
d = sqrt ((5 - (-2)^2 + (-8 - 6)^2)
d = sqrt ((5 + 2)^2 + (-14^2))
d = sqrt (7^2 + 14^2)
d = sqrt (49 + 196)
d = sqrt 245
d = 15.65 <==
Your first answer is correct but I’m not sure if your second is. But I’m leaning towards it is not correct.
Hope this helps!
(Don’t forget to mark branliest if it is correct :) )
