The correct answer is From different social and ethnic backgrounds.
Explanation:
The purpose of science studies is to gain an understanding of specific phenomena and use this in the benefit of the world or humanity. Moreover, science is guided by objective methods and these are applied all around the world. This feature allows scientists from all kinds of social and ethnic backgrounds to study the same phenomena and obtain similar results, which is essential for the progress of scientific knowledge. This is exemplified by two different labs in two different countries studying drug absorption because the results of these two studies can be analyzed together to understand drug absorption.
In this context, one factor that contributes to the progress of scientific knowledge is the effort of scientists "from different social and ethnic backgrounds".
Answer:
Most energy comes from the sun, either directly or indirectly: Most life forms on earth get their energy from the sun. Plants use photosynthesis to capture sunlight, and herbivores eat those plants to obtain energy. Carnivores eat the herbivores, and decomposers digest plant and animal matter.
Explanation:
Amplitude, I believe is going to be your answer.
Answer:
4590 joules
Explanation:
First of all, you need to know the specific heat (C) of the isopropyl alcohol which has the value of 3 kJ /kg°C.
This is an easy calorimetry problem. The formula is Q = m . C . ΔT.
Where m is the mass of compound and ΔT the difference of T°
ΔT = Final T° - Initial T°
Let's replace data, and firstly, we convert the mass of alcohol from g to kg, because the units of the Specific heat
25 g . 1kg /1000g = 0.025kg
Q = 0.025 kg . 3 kJ/kg°C (82.4°C - 21.2°C)
Q = 4.59 kJ
If we want the value in joules, we make the conversion:
4.59 kJ . 1000 J/ kJ = 4590 J