Which of the following is an example of homeostasis?
O A. If you are sleepy, you can drink coffee to stay awake.
O B. When you drink a lot of water, you urinate (pee) more than usual
O C. in a dangerous situation, your senses heighten your muscles tense, and your heart pumps faster
O D. When you are sick, your body temperature increases and you get a fever

Acatapult is tested by roman legionnaires. they tabulate the results in a papyrus and 2000 years later the archaeological team reads (distances translated into modern units): range = 0.4 km; angle of launch = π/5 rad; landing height = launch height. what is the initial velocity of launch of the boulders if air resistance is negligible?

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

Which of the following is not am example of a polymer? protein nylon kevlar concreta