1. A wheel axle is most obvious, as the wheels are connected via a chain and axle with spokes. This helps keep the wheels moving forward with less effort than walking.
2. A Lever is used to help Balance you as you ride the bike. Without it, you would tip over, and lose all the momentum you had gained up until that point.
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
instantaneous speed: The instantaneous speed is the speed of an object at a particular moment in time. And if you include the direction with that speed, you get the instantaneous velocity. In other words, eight meters per second to the right was the instantaneously velocity of this person at that particular moment in time.
velocity: the speed of something in a given direction.
acceleration: a vehicle's capacity to gain speed within a short time.
solve problems: Problem solving consists of using generic or ad hoc methods in an orderly manner to find solutions to problems.
