7. When placed within a magnetic field, some materials turn into magnets themselves. We call these magnets.
a. Permanent
b. Temporary
c. Short-term
d. Long-term

In a simplified model of the human eye, the aqueous and vitreous humors and the lens all have a refractive index of 1.40, and all the refraction occurs at the cornea, whose vertex is 2.60 cm from the retina. what should be the radius of curvature of the cornea such that the image of an object 40.0 cm from the cornea’s vertex is focused on the retina?

What word chemical equation describes cavendish’s experiment with zinc?

The smallest particle of an element that retains its identity in a chemical reaction. true or false