Physics, 23.09.2019 19:00 joshlynn52
An athlete swings a ball, connected to the end of a chain, in a horizontal circle. the athlete is able to rotate the ball at the rate of 8.16 rev/s when the length of the chain is 0.600 m. when he increases the length to 0.900 m, he is able to rotate the ball only 6.35 rev/s.(a) which rate of rotation gives the greater speed for the ball? 6.35 8.16 (b) what is the centripetal acceleration of the ball at 8.16 rev/s? m/s2(c) what is the centripetal acceleration at 6.35 rev/s? m/s2
Answers: 3
Physics, 21.06.2019 12:30
Sound waves are mechanical waves in which the particles in the medium vibrate ina direction parrallel to the direction of energy transport. what is another name of the type of wave that transfers energy in this way?
Answers: 2
Physics, 21.06.2019 23:30
Which of the following statements is true about women and minorities in early psychology? a. in the early 20th century, numerous graduate schools recruited women and minorities to study psychology. b. opportunities in higher education were limited for women and minorities in the early 20th century due to discrimination. c. despite some obstacles, there were numerous employment opportunities for women and minorities. d. women and minorities were often selected to do academic research in an effort to make the field more diverse.
Answers: 3
Physics, 22.06.2019 13:00
What effects result when there is an impact between earth and an asteroid? check all that apply. a.massive flooding. b.extinction of many life forms.c.major earthquakes change in average global temperature.d. giant dust cloud
Answers: 3
Physics, 22.06.2019 16:30
When measuring volume, why is it important to use the correct tools and units to attain the greatest accuracy? use specific examples from the lab to support your answer. (5 points)
Answers: 1
An athlete swings a ball, connected to the end of a chain, in a horizontal circle. the athlete is ab...
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