please answer q5, q6, q7, and q8... thank you Tony twirls a round piece of pizza

Question

please answer q5, q6, q7, and q8... thank you

Tony twirls a round piece of pizza dough overhead with a frequency of 60 revolutions per minute. a) Find the linear speed of a stray piece of pepperoni stuck on the dough 10 cm from the pizza's center 5. b) In what direction will the pepperoni move if it flies off while the pizza is spinning? Explain the reason for your answer. 6. Jessica is riding on a merry-go-round on an outer horse that sits at a distance of 8.0 m from the center of the ride. Jessica's sister, Julie, is on an inner horse located 6.0 m from the ride's center. The merry-go-round turns around once every 40.0 s a) Explain which girl is moving with the greater linear speed. b) What is the centripetal acceleration of Julie and her horse? 7. A cement mixer of radius 2.5 m turns with a frequency of 0.020 Hz. What is the centripetal acceleration of a small piece of dried cement stuck to the inside wall of the mixer? To test their stamina, astronauts are subjected to many rigorous physical tests before they fly in space. One such test involves spinning the astronauts in a device called a centrifuge that subjects them to accelerations far greater than gravity. With what linear speed would an astronaut have to spin in order to experience an acceleration of 3 g's at a radius of 10.0 m? (1 g 10.0 m/s?) 8.

Explanation / Answer

Only one question can be posted as per chegg guidelines'

5.

a)

Linear speed is given by

V=RW =0.1*(60*2pi/60)

V=0.6283 m/s

b)

Direction is tangent to the pizza since velocity is tangent to circle

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