một ô tô khối lượng 1 tấn, chuyển dộng trên mặt đường nằm ngang với gia tốc 5m/s không ma sát, thì hợp lực lên xe có giá trị nào

C. the electric current passes from the slip rings, through the brushes, and to the collection device.

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.

Answersinking of oceanic lithosphere into the mantle at a subduction zone