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Inessa05 [86]
3 years ago
6

If the point of the nail can be approximated as a circle with

Chemistry
1 answer:
maw [93]3 years ago
7 0

Answer:

P = 795.77 Mpa

Explanation:

Given that,

Force exerted by the hammer, F = 10⁴ N

The nail can be considered as a circle with radius of 2\times 10^{-3}\ m

We need to find the pressure exerted on the wall. Pressure is equal to force acting per unit area. So

P=\dfrac{F}{A}\\\\P=\dfrac{10^4\ N}{\pi \times (2\times 10^{-3})^2}\\\\P=795774715.45\ Pa

We know that, 1 MPa = 1000000 Pa

So, P = 795.77 Mpa

So, the pressure exerted on the wall is 795.77 Mpa.

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Tbh I don’t even know I learned this a long time ago
7 0
3 years ago
A sample of hydrogen peroxide (H202) has 2.0 grams of hydrogen (H) and 32 grams of oxygen (O). What is the percent composition o
Leto [7]

Answer:

O = 94.117%

H = 5.882%

Explanation:

Hydrogen peroxide (H202) Molar Mass = 34g

OH 1-  17g/mol

H 1+ = 1g/mol

O = 16g/mol

2 Grams H

32 grams O

Percentage composition of  Hydrogen peroxide

O = 32/34 = 94.117%

H =    2/34 =   5.882%

3 0
4 years ago
Acid rain is an example of _____________ weathering
olga nikolaevna [1]

Answer:

Chemical weathering

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6 0
3 years ago
Gold forms a substitutional solid solution with silver. Calculate the number of gold atoms per cubic centimeter (in atoms/cm3) f
Leokris [45]

Answer:

Gold: 1.1 x 10²² atoms/cm³

Silver: 4.8 x 10²² atoms/cm³

Explanation:

100 g of the alloy will have 29 g of Au and 71 g of Ag.

19.32 g Au ____ 1 cm³

29 g Au ______  x

x = 1.5 cm³

10.49 g Ag ____ 1 cm³

71 g Ag _______   y

y = 6.8 cm³

The total volume of 100g of the alloy is x+y = 8.3 cm³.

Gold:

196.97 g Au____ 6.022 x 10²³ atoms Au

29 g Au _______ w

w = 8.9 x 10²² atoms Au

8.9 x 10²² atoms Au ____ 8.3 cm³

           A                    ____ 1 cm³

A = 1.1 x 10²² atoms Au

Silver:

107.87 g Ag____ 6.022 x 10²³ atoms Ag

71 g Ag _______ w

w = 4.0 x 10²³ atoms Ag

4.0 x 10²³ atoms Ag ____ 8.3 cm³

          B                    ____ 1 cm³

B = 4.8 x 10²² atoms Ag

6 0
3 years ago
Drag the tiles to the correct locations. Each tile can be used more than once, but not all tiles will be used. One or more locat
Svetlanka [38]

Answer:             xx           xx

                         xxOxxCxxSxx

Explanation:

Sorry for the structure, but since Oxygen and Sulfur belong to group of six they want to share two electrons. Carbon belonging to group four wants to share 4 since its valence shell has four electrons.

Therefore the resulting Lewis structure is linear (like carbon dioxide) with two pairs of lone pairs in each O and S atoms and 0 lone pairs in carbon and two double bond.

8 0
3 years ago
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