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Damm [24]
3 years ago
6

1. Identify this mystery element: I am very reactive, I desperately want to get rid of my electron. When I make a compound with

Chlorine it is table salt. Who am I? 2. Identify this mystery element. I am amazing and have no cares in the world. I don’t like to form bonds because frankly, I am so perfect. I was very popular in Las Vegas by making lights very bright and colorful.
Physics
2 answers:
galina1969 [7]3 years ago
8 0
1.) NaCl (Sodium Chlorine)
2.) Ne (Neon) lights.
sladkih [1.3K]3 years ago
5 0
1) You are Sodium
2) You are Neon
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A force equal to 500 N is required to barely move a 100 kg mass on a horizontal surface. Find the static friction coefficient be
Afina-wow [57]

The maximum possible force of static friction between two surfaces is given by:

F = μN

F = max friction force, μ = coefficient of static friction, N = normal force

The normal force N equals the object's weight:

N = mg

m = mass, g = gravitational acceleration

Make a substitution:

F = μmg

Given values:

F = 500N, m = 100kg, g = 9.8m/s²

Plug in and solve for μ:

500 = μ(100)(9.8)

μ = 0.51

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saveliy_v [14]

349.6/6.2= 56.38709677419355 Rounded it would be 56, so the car travels about 56 miles per hour

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mojhsa [17]

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1.6×10^5J heat is required to raise the temperature of 10 kg of sand from 14°C to34°C,
galben [10]

Answer:

800 J/kg/C

Explanation:

Specific Heat Capacity can be calculated using the formula:

c = Q/mT

Where c is the specific heat capacity in <em>J</em><em>/</em><em>K</em><em>g</em><em>/</em><em>C</em>

<em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em>Q is the amount of energy supplied in <em>J</em>

<em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em>m is the mass of object in <em>k</em><em>g</em>

<em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em>T is the <em>c</em><em>h</em><em>a</em><em>n</em><em>g</em><em>e</em><em> </em>in Temperature in <em>C</em><em>.</em>

Hence by applying this formula, we get:

c = (1.6 × 10^5)/(10)(34 - 14)

c = <u>8</u><u>0</u><u>0</u><u> </u><u>J</u><u>/</u><u>k</u><u>g</u><u>/</u><u>C</u>

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6 0
3 years ago
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