Abug is on the rim of a disk of diameter 9 in that moves from rest to an angular speed of 76 rev/min in 6.5 s. what is the tangential acceleration?

Let's convert the final angular speed of the disk into rad/s:

while the initial angular speed is zero.

So, the angular acceleration of the disk is


The radius of the disk is half the diameter: 

And so, the tangential acceleration is the angular acceleration times the radius:

Honestly "global warming" may be a slight possiblity, however they called it "climate change" because its not real, in fact we had one of our coldest days here not too long ago, and the "issues" with this subject is a blindfold for actual problems.

the best answer for these questions would be:

1.            c. is smaller

2.            d) concrete operational

3.            b) interaction with the environment – the children interact with their environment can them learn more.

4.            a) parents who reason openly with children can limit a child’s cognitive ability.