In which situation is the object experiencing unbalanced forces A. a box resting on a horizontal line
B. a car slowing as its reaching a traffic light
C. A car with its cruise control set to 30 km/h
D. A penny at terminal velocity after falling off a building

Two vectors are shown. which statement best compares the vectors? vector x has greater magnitude than vector y. vector y has greater magnitude than vector x. the vectors have the same displacement. the vectors have the same 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

Determine the age of a fossil if it had only one eighth of its original carbon-14 content remaining?