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Agata [3.3K]
2 years ago
14

Calculate The pressure produced by a force of 392 N acting on an area of 8.0 m^2

Physics
1 answer:
Nonamiya [84]2 years ago
5 0

Answer:

Explanation:

500-0.05=499.95

500-100+5=405

100+100=10000

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Lady_Fox [76]

Answer:

1.909 m

Explanation:

Length of fence = 12 m

r = Radius of circle made by the provided fence

Cirumference of a circle is given by

C=2\pi r

The circumference of the circle will be equal to the length of the fence

2\pi r=12

\\\Rightarrow r=\dfrac{12}{2\pi}

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The radius of the fence is 1.909 m

8 0
3 years ago
Define speed and what is it’s SI unit.
Nadusha1986 [10]
Speed can be thought of as the rate at which an object covers distance. ... Speed has the dimensions of distance divided by time. The SI unit of speed is the metre per second, but the most common unit of speed in everyday usage is the kilometre per hour or, in the US and the UK, miles per hour........?
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3 years ago
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The mass of a radioactive substance follows a continuous exponential decay model, with a decay rate parameter of 1% per day. A s
Bumek [7]

Answer:

2,38kg

Explanation:

Mass in function of time can be found by the formula: m_{(t)} =m_{0} e^{-kt}, where m_{0} is the initial mass, t is the time and k is a constant.

Given that a sample decay 1% per day, that means that after first day you have 99% of mass.

m_{(1)} =m_{0} e^{-k(1)}, but m_{(1)}=\frac{99m_{0} }{100}, so we have \frac{99m_{0} }{100}=m_{0}e^{-k}, then k=-ln(\frac{99}{100})=0.01

Now using k found we must to find m_{(5)}.

m_{(5)}=m_{0}e^{-(0.01)5}=2.5kge^{-0.05} =2.5x0.951=2.38kg

6 0
3 years ago
Which property of sound waves decreases as the square of the distance from the source increases?
AleksAgata [21]
A. Pitch









okay bye have a nice day



From: Charli
5 0
2 years ago
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What is/are the energy transformation(s) that take place when using a wind turbine to generate usable energy?
Cerrena [4.2K]

Answer:

the answer is C

Explanation:

C) friction - mechanical - electrical

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3 years ago
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