D Question 16 6 pts What is the decibel level of a sound that is 20 times as intense as a 60 dB sound? 0 80 dB O 62 dB O 120 dB 0 73 dB Previous Next Quiz saved at 5:47pm Submit QuizD Question 17 6 pts 17 Minutes, Which statement about a series RC circuit is true after the switch is closed? The capacitor is initially uncharged. R AVbatt C O After a long time, the voltage drop across the resistor becomes equal to the voltage of the battery. O After a long time, the voltage across the resistor becomes zero. O After a long time, the voltage across the capacitor becomes zero. O The voltage across the capacitor is always equal to the voltage across the resistor. O All of the above statements are false. Previous Next Not saved Submit QuizD Question 18 6 pts Wire A carries 7 A of current into a junction. Wire B carries 5 A of current away from the same junction. Wire C is a third wire that is connected to the junction. What is the current in wire C? 2 A away from the junction 12 A away from the junction O 2 A into the junction 12 A into the junction Previous Next Not saved Submit Quiz9 D Question 19 6 pts 18 Mir Find the equivalent resistance of the combination of resistors shown in the figure below. (R1 = 3.42 HQ,R2 = 10.1 HQ.) 1.50 p0 8.00 pins 3.50 pm 0.75 pin R2 0 3.7 HQ 0 6.92 HQ O 1.38 HQ O 2.2 HQ Previous NextD Question 20 6 pts A wave pulse on a string travels with a speed of 100 m/s. If the mass of the string is doubled, and the tension in the string is halved, what is the speed of the wave now? O 400 m/s O 25 m/s 0 50 m/s O 200 m/s Previous Next Not saved Submit Quiz