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Ede4ka [16]
3 years ago
10

Sarah needs to replace part of the metal railing on her deck and wants the new railing to match the existing railing. However, s

he does not know what metal the railing is made from. Which is a property that she can use to identify the metal?
#1electrical conductivity
#2surface area of the railing
#3solubility
Physics
2 answers:
Veronika [31]3 years ago
5 0
I think the answer could be electrical conductivity
patriot [66]3 years ago
4 0
There are many ways to test and identify metal. The easiest way is to observe the color of the metal. Also how reflective it is. Other ways would be boiling point, melting point, density or conductivity of the metal.
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Nesterboy [21]

Answer: Uses of clay are as follows.

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Explanation:

Clay is a type of soil whose sediment consists of particles smaller than slit, that is, around 0.004 mm. This means that particles of a clay are very small.

A clay is soft and can be molded to different shapes easily.

Some uses of clay are as follows.

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5 0
3 years ago
What is the speed of an object after falling (from rest) a distance of 9.80 meters near the surface of the Earth? Assume air
madam [21]

Hi there!

We can use the kinematic equation:

v_f^2 = v_i^2 + 2ad

vf = Final velocity (? m/s)

vi = initial velocity (0 m/s, dropped from rest)

a = acceleration (due to gravity, 9.8 m/s²)

d = distance (9.8 m)

Simplify the equation to solve for vf:

v_f^2 = 0 + 2ad\\\\v_f = \sqrt{2ad}

Substitute in the given values:

v_f = \sqrt{2(9.8)(9.8)} = \boxed{13.86 m/s}

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if two substances have similar physical properties such as color and texture but different in other physical properties such as
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