Read the sentence. pick the option which correctly places the punctuation for correct phrasing. whenever he hangs up on me during a call i get so frustrated that i want to scream. a. whenever, he hangs up on me during a call i get so frustrated that i want to scream. c. whenever he hangs up on me, during a call, i get so frustrated that i want to scream. b. whenever he hangs up on me during a call, i get so frustrated that i want to scream. d. whenever he hangs up on me during a call, i get so frustrated, that i want to scream.

The answer to your question would be that the option which correctly places the punctuation for correct phrasing is the following one: Whenever he hangs up on me during a call, I get so frustrated that I want to scream (B).

Explanation:

The sentence contains an introductory clause. Introductory clauses are dependent clauses that provide background information or set the stage for the main part of the sentence, the independent clause.  This is why they are separated from the main the sentence with a comma.

a solenoid is created by wrapping a l = 90 m long wire around a hollow tube of diameter d = 4.5 cm.   the wire diameter is d = 0.9 mm.   the solenoid wire is then connected to a power supply so that a current of i = 9 a flows through the wire.

randomized variablesl = 90 m

d = 4.5 cm

d = 0.9 mm

i = 9 a                                          

write an expression for the number of turns, n, in the solenoid. you do not need to take into account the diameter of the wire in this calculation.

calculate the number of turns, n, in the solenoid.

write an expression for the length of the solenoid (l2) in terms of the diameter of the hollow tube d.

calculate the length of the solenoid (l2)   in meters.

calculate the magnitude of the magnetic field at the center of the solenoid in teslas.

explanation: