Answer:
The scientific method helps test and arrive at conclusions for a variety of hypotheses that are created when studying environmental science.
Explanation:
What is the scientific method in environmental science?
The scientific method is a method of research with defined steps that include experiments and careful observation. One of the most important aspects of this method is the testing of hypotheses by means of repeatable experiments. A hypothesis is a suggested explanation for an event, which can be tested.
Answer:
option D
Explanation:
given,
mass of the freight car (m) = 5,000 Kg
initial speed of car (u)= 2 m/s
mass of the freight car (M)= 10,000 Kg
initial speed (u')= 0 m/s
speed after collision (V)= ?
using conservation of momentum
m u + M u' = (M + m) V
5000 x 2 + 10000 x 0 = (5000 + 10000) V
![V = \dfrac{10000}{15000}](https://tex.z-dn.net/?f=V%20%3D%20%5Cdfrac%7B10000%7D%7B15000%7D)
![V = \dfrac{10}{15}](https://tex.z-dn.net/?f=V%20%3D%20%5Cdfrac%7B10%7D%7B15%7D)
![V = \dfrac{2}{3}](https://tex.z-dn.net/?f=V%20%3D%20%5Cdfrac%7B2%7D%7B3%7D)
couples move away with the speed of ![V = \dfrac{2}{3}](https://tex.z-dn.net/?f=V%20%3D%20%5Cdfrac%7B2%7D%7B3%7D)
Hence, the correct answer is option D
Answer:
The dependent variable is the variable being tested and measured in an experiment, and is 'dependent' on the independent variable. An example of a dependent variable is depression symptoms, which depends on the independent variable
Explanation:
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