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kvasek [131]
3 years ago
5

How much pressure does an elephant with a mass of 2200 Kg and a total footprint area of 4500 cm2 exert on the ground?

Chemistry
2 answers:
Debora [2.8K]3 years ago
6 0

Answer:

47911.1 pa

Explanation:

The SI base unit of pressure is pascal, which is N/m^2.

2200 kg is 2200*9.8=21560 N, and 4500 cm^2=4500/10000=0.45 m^2.

So the total pressure exerted on the ground (!!) is 21560/0.45= 47911.1 Pa.

luda_lava [24]3 years ago
5 0

Answer:

pressure =

47911.11 \:  \: pascals

Explanation:

here's the solution :-

force = weight of elephant.

=》f = mg

( where m = mass and g = acceleration due to gravity )

=》f = 2200 × 9.8

=》force = 21560 N

( note : acceleration due to gravity is also taken as approximate 10 , unless it is not mentioned in question we are taking it as 9.8 )

Area of footprint of elephant = 4500 cm^2

=》

\frac{4500}{10000} \:  meter {}^{2}

=》0.45 m^2

now,

=》pressure = mass ÷ area in contact

=》

p =  \frac{21560}{0.45}

=》

p = 47911.11 \: pascals

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Answer: Fe - O


Explanation:


1) Start by showing the chart information in a more understandable way:


Elements ---------- Electronegativity


aluminum (Al) ----- 1.61


calcium (Ca) ------- 1


carbon (C) ---------- 2.55


chlorine (Cl) -------- 3.16


fluorine (F) --------- 4


hydrogen (H) ------ 2.2


iron (Fe) ------------- 1.83


nitrogen (N) --------- 3.04


oxygen (O) ----------- 3.44


phosphorus (P) ----- 2.19


potassium (K) -------- 0.82


silicon (Si) ------------- 1.9


sulfur (S) --------------- 2.58


2) Find the electronegativity differences for the atoms in each compound:


i) Ca – Cl: 3.16 - 1 = 2.16


ii) Fe – O: 3.44 - 1.83 = 1.61


iii) H – S: 2.58 - 2.2 = 0.38


iii= F – F = 4 - 4 = 0


3) Analysis


i) The higher the electronegativity difference between two non-metal elements, the the more the polar the covalent bond. Therefore, the bond H - S is the most polar among the non-metal - non-metal bonds listed. But 0.38 is a small difference, so this is not very polar.


ii) For metal - non-metal bonds, when the difference in electronegativities is too high (close to or greater than 2.0) the ionic character is dominant, and so you cannot classify the bond as polar but as ionic. Therefore, Ca - Cl with 2.16 electronegativity difference is a ionic bond.


iii) The bond in Fe – O has electronegativty difference of 1.61, so it is yet covalent, and highly polar.


Read more on Brainly.com - brainly.com/question/1309389#readmore


<h3>~*"AUBA14"*~</h3>
8 0
3 years ago
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