What is the range of star masses for high- mass stars? between 2 and about 10 solar masses between 200 and about 500 solar masses between 2 and about 5 solar masses between 500 and about 1,000 solar masses between 8 and about 100 solar masses

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

Acompound machine is also called a machine. a. force b. simple c. complex d. directional

Chemical energy is a form of energy. a. heat b. kinetic c. potential d. electromagnetic