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disa [49]
3 years ago
14

What is the density of iron if 5.0 cm3 has a mass of 39.5g

Physics
1 answer:
weqwewe [10]3 years ago
7 0

Answer :\rho = 7.9\ g/cm^3

Explanation :

It is given that

Mass of iron, m = 39.5 g

Volume of iron, V = 5\ cm^3

So, density is :

density, \rho =\dfrac{mass}{volume}

\rho =\dfrac{39.5g}{5cm^3}

\rho = 7.9\ g/cm^3

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Unlike other states of matter, what expand to fill their containers
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gas

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A human being can be electrocuted if a current as small as 55 mA passes near the heart. An electrician working with sweaty hands
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Answer:

The lethal voltage for the electrician under those conditions is 126.5 V.

Explanation:

To discover what is the lethal voltage to the electrician we need to find out what is the voltage that produces 55 mA = 0.055 A when across a resistance of 2300 Ohms (Electrician's body resistancy). For that we'll use Ohm's Law wich is expressed by the following equation:

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Find the rms speed of the molecules of a sample of n2 (diatomic nitrogen) gas at a temperature of 31.5°c.
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8 0
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The force of the added water produces a torque on the dam. In a simple model, if the torque due to the water were enough to caus
Fittoniya [83]

Answer:

The appropriate response is "\tau=\frac{1}{6} PgLh^3". A further explanation is described below.

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On applying integration both sides, we get

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⇒     =\frac{1}{6} PgLh^3

8 0
2 years ago
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