Suppose that you time this pendulum, and it completes exactly 68.0 complete cycles in 100 s. [hint: think carefully about all given distances.] 5. (5 pts) which choice best represents the value of g in the vicinity of this pendulum?

Ajet plane has a sound level of 120 db at a distance of 60 m. what is the q23. sound level at a distance of 6.0 km? (60)2 (6000)? om solution 80db db, hint: 16x assume ultrasound waves travel through the body of an animal at 1540 q24. m/s. if a 30,000 hz signal were reflected off a portion of a heart which was moving toward the source at 3 m/s, what frequency signal would return to the stationary source? solution 30.117hz

What is the average speed of a car that travels 40 mph for 1 hour and 60 mph in another hour?

Which accurately compares concave and convex lenses?