Among irregular galaxies, what makes the Large and Small Magellanic Cloud especially useful for astronomers

the answer is a. at the equator

here we know that ball will drop down by total distance 3.2 m

so here we know that

now using kinematics

now in the same time it will cover horizontal distance of 0.75 m

so speed of the ball will be

b.transmitters send radio waves, and receivers capture radio waves.

i really dont know but i will try okay.

so i think u would just add all them up and get your answer..