An emu runs at a speed of 48 km/h. an ostrich runs at a speed of 70 km/hr. in a 5km race, which bird will win, and by how many minutes? show work.

the law of definite proportions states samples of a compound will always contain the same proportion of elements by mass. in other words, a given compound will always contain the same elements in the same proportions by mass.the law of multiple proportions states when two elements combine with each other to form more than one compound, then the weights of one element that combine with a fixed weight of the other are in a ratio of small whole numbers.