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Phantasy [73]
3 years ago
8

Which information would be required to determine the mass number of nitrogen

Physics
1 answer:
algol133 years ago
6 0
Looking at the bottom of the element on the periodic table.
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On her camping trip, Penelope was in charge of collecting firewood. The firewood she found had a mass of 120 g and a volume of 4
zloy xaker [14]
From the formula: density=mass/volume
But first, we have to convert the cm³ to m³ by multiplying the value in cm³ by 10^-6, by so doing we'll have the volume to be 0.48*10^-3cm³.
we will also need to convert the mass which is in g to kg by simply dividing by 1000 so the mass becomes 0.12kg
Now we can solve for the density using the formula I earlier stated which is the mass divided by the volume =0.12/0.48*10^-3 so the density will be 0.25*10^3kgm-3 or 2.5*10^2kgm-3
3 0
3 years ago
Satuarated solution changes into unsatuarated by heating. give reason​
Ierofanga [76]

Answer:

The heating of saturated solutions lead to the increase in their solubility. The kinetic energy of the liquid molecules increases on increasing the temperature due to which they move apart from each other creating more space for the solute molecules to dissolve thereby increasing the solubility.

7 0
3 years ago
A shell traveling with speed, v0 , exactly horizontally and due north explodes into two equal mass fragments. It is observed tha
yanalaym [24]

Answer:

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Explanation:

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3 0
3 years ago
Can y’all help me on number 2
Temka [501]

Answer:

sure

Explanation:

7 0
3 years ago
Read 2 more answers
One of the dangers of tornados and hurricanes is the rapid drop in air pressure that is associated with such storms. Assume that
Ierofanga [76]

Answer:

Force = 22508.86 N

Explanation:

Given:

Area of the window, A = 2.02 m²

Air pressure inside the house, P₁ = 1.02 atm

External air pressure, P₂ = 0.910 atm

Now, The difference in the pressure, ΔP = P₁ - P₂ = 1.02 - 0.910 = 0.11 atm

or

ΔP = 0.11 atm  ×  (101300 Pa / 1 atm )

ΔP = 11143 Pascals

Now,

the Force is given as:

Force = Pressure × area

on substituting the values, we get

Force = 11143 Pa × 2.02 m²

or

Force = 22508.86 N

4 0
3 years ago
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