A(n) force can cause an object ti's speed and/or direction

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

Explain why you think this diagram shows what happened to the carbon in the biodome.

Anika asks eva to roll a basketball and then a bowling ball to her. which requires more force to roll, and why?