___ N is the magnitude of the force a 2.5 x 10-6 C charge exerts on a 4.2 x 10-4 C charge located 0.05 m away?
Can someone explain this to me?

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.

What is an aquifer for science class

Both independent and dependent clauses