A 1.15-kg grinding wheel 22.0 cm in diameter is spinning counterclockwise at a rate of 20.0 revolutions per second.
When the power to the grinder is turned off, the grinding wheel slows with constant angular acceleration and takes 80.0 s to come to a rest.
(a) What was the angular acceleration (in rad/s2 ) of the grinding wheel as it came to rest if we take a counterclockwise rotation as positive?
(b) How many revolutions did the wheel make during the time it was coming to rest?
Question 2
The angular acceleration of a wheel is given in rad/s2by 45t3 11t4, where t is in seconds. If the wheel starts from rest at t = 0.00 s, when is the next time the wheel is at rest?
A) 5.1 s
B) 8.4 s
C) 6.9 s
D) 3.6 s
The metric system specifies fasteners by diameter, length, and pitch.
Total Fertility Rate in the United States, 1860–2008
Effect of Increasing the Investment Rate on the Steady State
Saving Rate by Decile of Income per Capita
Calculating Growth Rate of Bacteria
The rate of replacement of a recessive allele d by the dominant allele D by mutation alone. Even tho