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Nuetrik [128]
2 years ago
11

If the radius of a coin is 1 cm then calculate its area.​

Physics
2 answers:
igor_vitrenko [27]2 years ago
5 0

Answer:

3.14*1²

3.14 cm²

I hope this will help

swat322 years ago
4 0

Answer:

3.14 cm squared

Explanation:

I hope this will help.

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What has been happening to the cosmic microwave background radiation since the Big Bang?​
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A car travels at a constant rate for 25 miles, going due east for one hour. Then it travels at a constant rate another 60 miles
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You are trying to overhear a juicy conversation, but from your distance of 23.0 m , it sounds like only an average whisper of 40
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4 0
3 years ago
How much pressure is applied to the ground
statuscvo [17]

Answer:

Pressure applied by the man= 285103.125 Pa  or 41.35 lb/in^{2}

Explanation:

Pressure is defined as the perpendicular force applied per unit area.

i.e.  Pressure=\frac{Force}{Area}

Now, Force= mg

where, m = mass of the body(man) = 93 kg

g = acceleration due to gravity of Earth = 9.81 m/{s^{2}}

Area covered is equal to the area of both stilts(a man generally stands on two feet)

therefore Area=2(0.04)^{2} m^{2}

and putting in the values, we get,

Pressure=\frac{93\times9.81}{2\times(0.04)^{2}}Nm^{-2}=285103.125Nm^{-2}

Now we need to convert to our required units:

1Nm^{-2}=1Pa\\1Pa=0.000145038lb/in^{2}

(We can get the above result by individually converting kg to lb and meters to inches respectively)

Using the above relations we get,

Pressure=285103.125Pa=0.000145038\times285103.125lb/in^{2}=41.35lb/in^{2}

7 0
3 years ago
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