According to Kirschhoff's Junction Law, if a junction has four wires connected to it, and two of the wires are bringing in a current of 8 A and 12 A respectively, which of the following would be correct estimation for the amount of current leaving through the remaining two wires a
20 A and 4 A
b
5 A and 12 A
c
9 A and 10 A
d
13 A and 7 A

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.

*drag each tile to the correct location in the sequence* the table shows chronological events in the life of our sun, a medium-sized star. place the missing events into the correct rows of the table.

How many neutrons does element x if it’s atomic number is 28 and its mass number is 87