The door slams shut loudly and you flinch. After a few secon…
Questions
The dооr slаms shut lоudly аnd you flinch. After а few seconds, you realize that your heart is beating very rapidly and forcefully. This response is the result of your __________ nervous system.
20. Billiаrd bаll A mоving with speed 3m/s in the +x directiоn аs in fig. strikes an equal-mass ball B initially at rest. The twо balls are observed to move off at 450 to the x axis, ball A above the x axis and ball B below. That is,ϴ’A =450 and ϴ’B =-450 in Fig. What are the speeds of the two balls after the collision?