An insect lands on a compact disc that is put into a player. if the insect spins with the disc, is the insect accelerating? why or why not.

Yes the bug will accelerate with the disk. The same way you would on a merry go round. For rotation about a fixed pivot point, the path of any point on a revolving body is a circle, and its linear velocity at any moment is always tangent to that circle. 

Answer:

5.6⋅10−^19  j

do you need the explaination?

Hbr dissociates to form h+ and br-ca(oh)2 dissociates to form ca2+ and 2oh-the h+ and oh- react to form waterassuming the reactants are dissolved in water, the net reaction is h+ + oh- —> h2oif you’re asked to show all components of the reaction, the complete reaction is 2hbr + ca(oh)2 —> cabr2 + 2h2o