According to a recent finding, it would appear that 70 million years ago, the Earth was spinning a bit more rapidly than it is today, and the day was 30 minutes shorter than it is now. What has been the magnitude of the Earth's average angular acceleration over the past 70 million years? 1.55 x 102 rad/s2 1 6.09 x 10 21 rad/s? 3.18 x 1022 rad/s2 3. 7.05 x 1022 rad/s? 4

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According to a recent finding, it would appear that 70 million years ago, the Earth was spinning a bit more rapidly than it
is today, and the day was 30 minutes shorter than it is now. What has been the magnitude of the Earth's average angular
acceleration over the past 70 million years?
rad/s?
1
O 1.55 x 10-21
2
6.09 x 10 2 rad/s2
3.18 x 10 22 rad/s-
3
7.05 x 10 22 rad/s2
4
Transcribed Image Text:According to a recent finding, it would appear that 70 million years ago, the Earth was spinning a bit more rapidly than it is today, and the day was 30 minutes shorter than it is now. What has been the magnitude of the Earth's average angular acceleration over the past 70 million years? rad/s? 1 O 1.55 x 10-21 2 6.09 x 10 2 rad/s2 3.18 x 10 22 rad/s- 3 7.05 x 10 22 rad/s2 4
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