A wheel rotating about a fixed axis has a constant angular acceleration of 4. 0 rad/s2. In a 4. 0-s interval the wheel turns through an angle of 80 radians. Assuming the wheel started from rest, how long had it been in motion at the start of the 4. 0-s interval?.

The different forms of a gene for a given trait are called .

Scientists observed a rock stratum and discovered some fossils. the image shows the fossils they discovered. what can you interpret from the image? an illustration showing layers rock with fossils embedded in some rock layers1. the dinosaur and the mammoth existed after the trilobites.2. the dinosaur and the armored fish existed before the trilobites.3. the trilobites and the armored fish died before the dinosaur.4. the trilobites and the armored fish were born after the dinosaur.5. the early mammoth is older than the trilobites.

What is the binomial name of the horsefly species that's golden backside inspired a 24-year old researcher to name it after a pop star in january 2012?