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lyudmila [28]
3 years ago
8

According to the scientific observation that energy is conserved in a "closed system,” no machine can do work on its surrounding

environment forever. This observation has been made over and over again in all sciences, and no example has been found that disproves the fact of conservation of energy.
The fact that energy is always conserved in a closed system is what type of scientific statement?
a law
a theory
an inquiry
a hypothesis
Physics
2 answers:
tensa zangetsu [6.8K]3 years ago
7 0
I believe it is theory
konstantin123 [22]3 years ago
5 0

The Law is the correct answer

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A rocket travels 1.3 km in 62 ms. What is its average speed in m⋅s−1? Do not give your answer in scientific notation. The answer
hjlf

Answer:

Average speed = 0.35 m/s

Explanation:

Given the following data;

Distance = 1.3 Km

Time = 62 minutes

To find the average speed in m/s;

First of all, we would convert the quantities to their standard unit (S.I) of measurement;

Conversion:

1.3 kilometres to meters = 1.3 * 1000 = 1300 meters

For time;

1 minute = 60 seconds

62 minutes = X

Cross-multiplying, we have;

X = 62 * 60

X = 3720 seconds

Now, we can calculate the average speed in m/s using the formula;

Speed = \frac {distance}{time}

Speed = \frac {1300}{3720}

Average speed = 0.35 m/s

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What is the result of a force distributed over an area
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Answer:

The result of force distributed over an area – Pressure = Force(in Newton's – N)/area (m 2 ) Pascal (Pa) – SI unit for Pressure – Named after.

I hope it help you,

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