C^2=a^2+b^2
c^2=45^2+45^2
c^2=4050
c=63.64
c=64
The answer is D.
Answer:
241 kPa
Explanation:
The ideal gas law states that:
where
p is the gas pressure
V is its volume
n is the number of moles
R is the gas constant
T is the absolute temperature of the gas
We can rewrite the equation as
For a fixed amount of gas, n is constant, so we can write
Therefore, for a gas which undergoes a transformation we have
where the labels 1 and 2 refer to the initial and final conditions of the gas.
For the sample of gas in this problem we have
So we can solve the formula for 
, the final pressure:
The answer is "A. qualitative".
Qualitative Research is essentially exploratory research. It is utilized to pick up a comprehension of fundamental reasons, sentiments, and inspirations. It gives bits of knowledge into the issue or creates thoughts or speculations for potential quantitative research. Qualitative Research is additionally used to reveal drifts in thought and feelings, and jump further into the issue. Qualitative information accumulation strategies change utilizing unstructured or semi-organized methods. Some basic strategies incorporate concentration gatherings (amass talks), singular meetings, and cooperation/perceptions. The example estimate is commonly little, and respondents are chosen to satisfy a given share.
Two lenses that should be purchased are lenses with the power of 1d and 4d or 2d and 3d.
We need to know about the power of the lens to solve this problem. Lens power can be defined as the ability of the optical device to see. It can be represented by a dioptre unit. The relaxed power formula is
P = 1 / f
where P is the power of the lens in dioptre, and f is the focal length.
From the question above, the given parameter is
f = 0.2 m
By substituting the given parameters, we can calculate the power of the lens
P = 1 / f
P = 1 / 0.2
P = 5d
The total diopter should be 5d.
For more on lens at: brainly.com/question/15445779
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