ANSWER
EXPLANATION.
To write in scientific notation means , we write in form,
Where n is an integer and
The given number is,
We move the decimal point backward to obtain our k, the n here is 9, because we moved backward 9 times.
This implies that,
The correct answer is D
Explanation:
It is known that relation between torque and angular acceleration is as follows.
and, I =
So,
= 4
So,
= 1
as
=
Hence,
Thus, we can conclude that the new rotation is times that of the first rotation rate.