To make sure no cracks are in the crucible and also to remove any moisture present in the crucible by the process of heating.
Answer:
<h2>9 kg.m/s</h2>
Explanation:
The momentum of an object can be found by using the formula
momentum = mass × velocity
From the question we have
momentum = 3 × 3
We have the final answer as
<h3>9 kg.m/s</h3>
Hope this helps you
Answer:
Natural selection changes how well a species can survive in an environment.
Explanation:
I'm not the best at biology, but natural selection a term we use that's describes nature's way of choosing the strongest to survive. The species with the strongest adaptations will survive while the others will die off. For example, if a school of fish was forced to live in a colder habitat than usual, over many years some fish will adapt to that environment and be able to withstand it. But, some fish won't get those adaptations and be killed off. But, future generations will be born with that ability to withstand the cold environment and it would become normal. So, natural selection changes the way a species lives. Hope this helps
An amorphous solid<span> is any noncrystalline </span>solid<span> in which the atoms and molecules are not organized in a definite lattice pattern. So amorphous solids do not </span>have a long-range order in the arrangement of their particles because their <span> formation involves very rapid cooling. Therefore, the answer would be the first option. Hope this helps.</span>