What is the density of the baseball? g/cm3
The acceptable density range of official baseballs is
between 0.70 g/cm and 0.80 g/cm? Is the
questionable ball in this range of acceptable density?

graphing motion: mastery test

209be

what is the instantaneous acceleration of

the particle at point b?

0 meters/second?

10 meters/second?

12 meters/second?

velocity imetersisecond

15 meters/second?

20

time (seconds)

answer: 0 meters/second^2

a=d/t

a="triangle"v/t

explanation:

a = acceleration

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.