A small rubber wheel is used to drive a large pottery wheel. The two wheels are mounted so that their circular edges touch. The small wheel has a radius of 3.0 cm and accelerates at the rate of 6.9 rad/s2 , and it is in contact with the pottery wheel (radius 20.0 cm ) without slipping. a. Calculate the angular acceleration of the pottery wheel. in rad/s^2.
b. Calculate the time it takes the pottery wheel to reach its required speed of 75 rpm in seconds

It indicates no change in temperature and the process of matter changing its state

The answer is b. all other properties are crucial.

When calculating percentage we need two numbers. one number represents total amount of certain thing and another number represents partial number of that thing. then we divide those two numbers.in this problem total amount represents total number of weeds growing on some surface. partial number represents chicory.percentage = partial / total * 100%percentage = 29 / 98 * 100%percentage = 29.6%our calculation is closest to answer b) so this is our correct answer.