Assume that a 700 kω resistor is connected between the 150 v terminal and the common terminal. the voltmeter is then connected to an unknown voltage using the common terminal and the 300 v terminal. the voltmeter reads 288 v .what is the unknown voltage?

There are multiple tuning forks present in the room, and annie strikes one with a natural frequency of 400 hz. which of these other tuning forks will begin to vibrate through resonance and make the sound louder? a 200 hz tuning fork a 400 hz tuning fork a 800 hz tuning fork a 1600 hz tuning fork