answer questions 8-12

8. [0/2 Points] DETAILS PREVIOUS ANSWERS OBINPHYS8 1.P.005. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A hypnotist's watch hanging from a chain swings back and forth every 0.70 s. What is the frequency (in Hz) of its oscillation? X HZ Need Help? Read It Submit Answer 9. [-/2 Points] DETAILS OBINPHYS8 1.P.006. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A quartz crystal vibrates with a frequency of 29,621 Hz. What is the period of the crystal's motion? ms Need Help? Read It Submit Answer 10. [-/2 Points] DETAILS OBINPHYS8 1.P.007. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A passenger jet flies from one airport to another 1,233 miles away in 2.3 h. Find its average speed. m/s Need Help? Read It Submit Answer 11. [-/2 Points] DETAILS OBINPHYS8 1.P.013. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER How far does a car going 23 m/s travel in 7 s? How far would a jet going 160 m/s travel in 7 s? car's distance m jet's distance m Need Help? Read It Submit Answer 12. [1/2 Points] DETAILS PREVIOUS ANSWERS OBINPHYS8 1.P.015. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A car is going 17 m/s for 14 s. Draw an accurate graph showing the distance versus time for the car. d(m) d (m) 500 250 400 200 300 150 200 100 100 50 t(s) It (s) O 2 6 8 10 12 14 O 2 6 8 10 12 14 d(m) d(m) 500 250 400 200 300 150 100 200 50 100 t(s) t(s) 2 8 10 12 14 O 2 4 6 8 10 12 14 O What is the slope? x m/s Need Help? Read It