The compound in IUPAC nomenclature is called Silicon dioxide. It <span> is a chemical compound that is an oxide of silicon with the chemical formula SiO₂. It has been known since ancient times. Hope this answers the question. Have a nice day.</span>
Answer:
Below given
Explanation:
constant velocity of 5 m/s. Calculate:
(a) the kinetic energy of the boy
(b) the work done by the boy
[Ans.(a) 6.25 ), (b) 6.25]] can some on show me how the answer
came
3rd one is the answer. Yes answer is correct
D. physical property
the bonds between molecules of mercury are breaking so it's physical and it's not changing the chemical composition of the substance
0.04m²
Explanation:
Given parameters:
Pressure = 250000Pa
Weight = 40000N
Unknown:
Area of each foot = ?
Solution:
Pressure is the force exerted per unit area of a body
Pressure = 
To find the area;
Area = 
Area = 
= 0.16m²
The force exerted by all the four feet is 0.16m²
the area of each feet = 
= 0.04m²
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