Answer:
0.0979 kg/m³
Explanation:
Treating air as an ideal gas:
PV = nRT
n/V = P/RT
Density depends on both pressure and temperature. If we assume the temperature is constant, we can say that density is directly proportional to pressure.
ρ = kP
ρ/P = k
Writing a proportion:
(1.26 kg/m³) / (7720 mmHg) = ρ / (600 mmHg)
ρ = 0.0979 kg/m³
To solve this problem it is necessary to apply the concepts related to Gauss's Law.
Gauss's law establishes that the flow of certain fields through a closed surface is proportional to the magnitude of the sources of that field inside the same surface.
Mathematically it can be expressed as,
Where
A = Surface area of Gaussian surface
Q = Charge enclosed by Gaussian surface
= Permittivity of free space
E = Electric Field
Our values are given as
Therefore replacing at our equation we can find Q,
Therefore the magnitude of the charge is
Answer: A. New, high-tech materials are used to make prosthetic limbs for people who need them
Explanation:
Engineering is an immensely important science to us as humans for through its development of tools, machines, engines and structures, human lives have been made better in just about every field.
One of these fields is the medical field. In the past people who lost limbs could say good bye to a normal life or at least a semblance of one but now, due to advancements in Engineering, high-tech materials can now be used to make prosthetic limbs for people who need them.