What is the equivalent resistance of the circuit?
0.61 Ω
1.6 Ω
75 Ω
18 Ω
9.0 Ω
ν

The answer is orbit around nucleus

The correct option is this: the sound waves from the two trombones have slightly different frequencies.from the question given above, we are told that the loudness of the sounds were increasing and decreasing, this is because the frequencies of the two sounds are different. the means that the number of waves that pass a fixed point in a given amount of time differ for both sounds.

Heat up ? and cool down? well im guessing at this one, plz check it first