4. What is the MAIN reason the author includes the section “We Know We're Still Missing Something”? A. to show that scientists still have a lot to learn about sunspots even though they were observed 400 years ago

B. to show that everything Johannes Fabricius observed about sunspots was somewhat inaccurate

C. to show that scientists today have access to technology that allows them to make meaningful discoveries

D. to show that scientists are no longer prioritizing the intensive study of sunspots

force is mass*acceleration.

we have a very small mass: 11.4*0.001 kg

if we want 0.035n of force, we need an acceleration:

0.035 = 11.4*0.001*a

a = 0.035/(11.4*0.001) m/s^2

well, you would divide 135 by 33 to get your answer. then that is how many seconds it would take. boardman should fly about 132 m or 4.090909090909091 seconds.

when two balls of the different masses are dropped from equal height, they reach the ground at the same time .this is because they experience the same acceleration.

the acceleration is independent of mass.

thus when they are dropped they will always maintain the same velocity and travel the same distance (neglect air resistance of course) at the same time.