un barco emite un sonido que es percibido por otro barco despues de 12 s a que distancia estaran los dos barco si se encuentran en el polo norte y el agua como la temperatura estan a 0 grados

Which is a substance that can be separated by physical means and is not the same throughout

What is the coldest temperature ever recorded in san antonio?

The path of a satellite orbiting the earth causes it to pass directly over two tracking stations a and b, which are 51 miles apart. when the satellite is on one side of the two stations, the angles of elevation at a and b are measured to be 87 degrees and 84 degrees, respectively. (a) how far is the satellite from station a? (b) how high is the satellite above the ground?