What does the expression “75 meters per second southeast” best describe?

Every second this thing moves 75 meters in the southeast direction. So, 2 secons will be 150 meters, 4 seconds will be 300 meters, etc.

Southeast means something in the middle between the south direction and the east direction, maybe about -45 degrees. We can apply Pythagorean theorem:

L1^2+L2^2=hip^2=(75m/s)^2

If East velocity is equal to the south velocity, both legs will be equal:

2L^2=(75m/s)^2

L^2=(75m/s)^2/2

L = square root [(75m/s)^2/2] = (75m/s)/[square root (2) ] = 53m/s

So the object is moving about 53m/s to the east and 53m/s to the south.

answer: all : )

explanation:

sulfur dioxide

explanation: acid rain is caused by a chemical reaction that begins when compounds like sulfur dioxide and nitrogen oxides are released into the air. these substances can rise very high into the atmosphere, where they mix and react with water, oxygen, and other chemicals to form more acidic pollutants, known as acid rain.