Aball is thrown straight up. at the top of its path its acceleration is
a. 0 m/s2.
b. about 5 m/s2.
c. about 10 m/s2.
d. about 20 m/s2. e. about 50 m/s2.

How is sound energy produced a. vibrating objects b. objects being heated c. temperature differences d. stationary objects

Which is not true of the intertropical convergence zone? a) it features heavy precipitation b) it's where the trade winds collidec) it's a high-pressure zone with sinking air d) it is also known as the doldrums

Newtons view of arrangement of the universe. don't copy from anywhere.