How important is your role as a human being in the natural world

Answers

Answer 1

Answer: Well, the natural world has existed for a long time without humans, so we know that we're not indispensable to the natural world.

We can influence it though, as is shown by the current man-made global warming: so it is important that we take good care of the part of the natural world that we live in so that we can live in it for a long time.

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Can a simple machine’s efficiency ever be greater than 100%?
Explain your answer.

Answers

100% efficiency is not possible, so any greater than 100% is also not possible. There is always some energy waste, normally through heat, sound, or light

Personally, I believe not. 100% is the total, and therefore, it cannot possibly be above 100% percent, as this wouldn't then mean that the machine is efficiently beyond its means

Which describes the eye of a hurricane?a. brings winds of up to 300 km/h
c. has strong, spinning winds
b. has warm, calm air and light winds
d. has spiraling bands of heavy rain

Answers

B

THE EYE OF THE STORM IS CALM

Answer:

b. has warm, calm air and light winds

Explanation:

The eye of a hurricane is calm and "peaceful", it's the region with calm weather. But the eyewall is really dangerous, due to its pressure and speed difference. Actually, the eyewall has the most severe winds and weather. Another important characteristic is that the eye has the lower pressure.

So, among the options, b. is the right answer.

b. has warm, calm air and light winds

A 6.0-newton force and an 8.0-newton force act concurrently on a point. As the angle between these forces increases from 0 degrees to 90 degrees, the magnitude of their resultant…(1) decreases (2) increases (3) remains the same