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White raven [17]
3 years ago
10

You have a motion security light by your door cat runs across the in the light turns on what is the input of the system and what

is the output
Physics
1 answer:
Neporo4naja [7]3 years ago
5 0
A motion security line is a system that is used to detect motion.
The input for the system is MOTION and the output is LIGHT. That is, when the system detects motion it switch on light.
Remember, an Input is the information that was inserted into a system while the output is the result of the processed information.
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Explosion in antarctic sea ice levels may cause another ice age. True or False
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Answer:

True Explosion in antarctic sea ice levels may cause another ice age.

Explanation:

True

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Some scientists at the University of Chicago said their analysis shows how the rise of Antarctic sea ice in cold climate could cause a cascade of shifts that could lead to turning the global climate towards glacial periods,

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It takes 20 N of force to move a box a distance of 10 m. How much work is done on the box?
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Answer:

Ans is 200 J

Explanation:

Given:  Force = 20N

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Work done  = Force * displacement

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4 years ago
What happens when a star blows up and it is next another star will it blow up too?
FinnZ [79.3K]

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Sometimes

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4 0
4 years ago
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Does the universe need explaining or can it just 'be' there?
Naddik [55]

Recently, We've been discussing this specific topic in my RS class. So, there are many theories to explain the existence of the world such as the Big Bang, Evolution or the Creation story.

Although these are three different ideas, they can still be related or interconnected with one another in some way. For example, George Lemaintre's Big Bang explanation can be linked with the Creation story in ways such as God being present at the Big Bang or even God being the one to allow the Big Bang occur.

Furthermore, God might have created us as apes or monkeys then we evolved to become humans.

In conclusion, the universe couldn't have come to pass just like that, they're must be Scientific or Theological truths to back this up. The only thing is that people have their unique beliefs, according to their religion, culture and childhood background.

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3 years ago
1. A 2000kg truck at rest accelerates to 45m/s in 7 seconds. What is its change in kinetic energy?
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Answer:

2025000 J

Explanation:

The formula for kinetic energy is KE=.5(m)(v²).  

The initial kinetic energy is 0 because it is at rest.  .5(m)(0) = 0.

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To find the change in kinetic energy, you do KE(f) - KE(i).  2025000-0 = 2025000 J.

5 0
4 years ago
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