Two loudspeakers are separated by 3 m and are both playing a 686 Hz tone in phase. When you are 5.62 m directly in front of one of the speakers do you hear a minimum or a maximum sound intensity?

The summit of chimborazo, in ecuador, which is at a distance of about 6,384 km from the earth's center. the bottom of the mariana trench, in the western pacific ocean, which is nearly 6,370 km from the center of the earth. on the surface of earth on the equator line.

It is really hard for me right know

Both independent and dependent clauses