HELP ME PLS when your sence becomes sharper what is that
a. respitory system
b. circulatery system
c. nervouse system
d. muskeler and skeletal system

To do work, this truck uses energy stored in chemical fuel and an electrical battery. how much total energy does this truck put out?

An object is 10. cm from the mirror, its height is 3.0 cm, and the focal length is 2.0 cm. what is the image height? (indicate the object orientation by including the + or - sign with the answer.) hi = cm +1.33 -1.33 +0.75 -0.75

4. if you were an astronaut on the moon, what would you experience? what would you see from your perspective?