If he's going back using the same roads, then he would have to drive 4km west and then 3km north. If he wants to go diagonally straight to the point of his beginning, then you apply the Pythagorean theorem. c2 = a2 + b2 - the 2 means squared
c2 = 4squared + 3squared c2 = 16 + 9 c2 = 25 c = SquareRoot of 25 C = 5
If he goes diagonally, then he needs to travel 5km.
Scientific laws are statements of facts produced after observed events of nature. There are usually no exceptions to how the outcome of these events unravels. Laws explain HOW nature works.
Explanation:
ON THE OTHER HAND, Theories are usually blanket principles, usually overarching, on how nature has been observed to work. Theories can evolve over time as more information is discovered, but laws are more or less static. Theories explain WHY we see nature to behave in a certain way.
In the case of this question it is scientific law that if a fluid is heated, it becomes less dense as its temperature rises.
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These question provide more insights into the difference between scientific theory vs law
Well, isn’t v=d/t, then by making subject d, d=vt, turn 3 hours into seconds, 1hr=3600sec, hence 3hr=x, cross multiply and you would have converted it into seconds, then put it into your equation of d=vt
False. Heat radiation from the sun cannot reach Earth, we cannot receive TV or GPS signals from satellites, and we cannot detect the light from distant stars. Oh, wait . . .
