A machinist turns on the power to a grinding wheel at time t = 0 s. The wheel accelerates uniformly from rest for 10 s and reaches the operating angular speed of The wheel is run at that angular speed for 30 s and then power is shut off
The wheel slows down uniformly at 2.1 rad/s2 until the wheel stops. In this situation, what is the angular acceleration of the wheel between t = 0 and t = 10s? A) 3.8 rad/
B) 4.6 rad/
C) 5.3 rad/
D) 6.1 rad/
E) 6.8 rad/
A
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A scientific name consists of which of the following?
a. family name only b. genus name only c. species designation only d. family name and genus name e. genus name and specific epithet