Imagine a metal rod 0.4 m long with a mass of 2 kg. You attach the rod at one end by a lightweight 3.0-m-long cord and twirl the rod around your head. Which expression below gives the best estimate of the moment of inertia of the rod-cord system? a) I=mr^2, where m = 2kg and r = 3.2m
b) I=1/3mr^2, where m = 2kg and r = 3.4
c) I=1/12mr^2, where m = 2kg and r = 1.7m
d) I=mr^2, where m= 2kg and r = 3.4m

Explanation:

Given that

a metal rod 0.4 m long

mass of 2 kg

lightweight 3.0-m-long cord

a) I=mr^2, where m = 2kg and r = 3.2m

b) I=1/3mr^2, where m = 2kg and r = 3.4

c) I=1/12mr^2, where m = 2kg and r = 1.7m

d) I=mr^2, where m= 2kg and r = 3.4m

answer: d. a cme increases the amount of energy in the solar wind

explanation:

coronal mass ejections, also called cmes, are large clouds of plasma and magnetic field that erupt from the sun. only when the cloud is aimed at earth will the cme hit earth and therefore cause impacts. high-speed solar wind streams come from areas on the sun known as coronal holes.

i believe it is b. what was the cause of the big bang

hope this !