A1.000kg block of phosphorus-32, which has a half life of 14.3 days, is stored for 100.1 days. at the end of this period, how much phosphorus-32 remains?

Jason and alejandro lift a chair 2 meters into the moving truck using 150 newtons of force. it takes them 3 seconds to lift the chair how much power did they use

Which of the following is not a part of the respiratory system? a. pharynx b. trachea c. pancreas d. larynx

The focal length of a relaxed human eye is approximately 1.7 cm. when we focus our eyes on a close up object, we can change the refractive power of the eye by about 16 diopters. (a) does the refractive power of our eyes increase or decrease by 16 diopters when we focus closely? explain. (b) calculate the focal length of the eye when we focus closely.