Question 7 of 10 Which observation is evidence of refraction in this photo?

A. The top of the man's head appears disconnected from the rest of

his head.

B. The man's arm is clearly seen under the water.

C. The snorkel in the man's mouth appears yellow.

a

D. The water in which the man is swimming is transparent.

A

Explanation:

A p e x

it is A

Explanation: A p e c

a charge 3q is at the origin, and a charge −2q is on the positive x axis at x=a. part a where on the x-axis would you place a third charge so it would experience no net electric force? enter an expression for the exact answer, which will involve a square-root sign. (do not enter an approximate decimal answer.)

the entire statement is true and correct.  

there's no diagram, nothing is illustrated, and no question is asked.