Answer: Option (a) is the correct answer.
Explanation:
When rain passes through the air then carbon dioxide present in the air dissolves in the water. Further, this carbon dioxide reacts with water and results in the formation of carbonic acid.
Thus, the rain water becomes acidic in nature and as a result, there will be decrease in its pH.
Hence, we can conclude that rain has a natural pH that is acidic.
Answer:
True
Explanation:
As per a survey conducted in the United States, it has been highlighted that among 30 million children participating in any sports, there are 3.5 million children who face injuries. It is because of these injuries that the children have to take some leave or absence from the sports. Also, the statistics discloses the fact that among all the injuries faced by the humans, one third of them are related to the childhood sports activities. Sprains and strains are among the most common of the injuries.
The maximum compression of the spring is 0.6 m.
<h3>
Spring constant</h3>
The spring constant of the spring is calculated as follows;
F = kx
k = F/x
k = (5)/(0.1)
k = 50 N/m
<h3>Maximum compression of the spring</h3>
The maximum compression of the spring is calculated as follows;
U = K.E
¹/₂kx² = ¹/₂mv²
x² = (mv²)/(k)
x = √(mv²)/(k)
x = √(4.5 x 2²)/(50)
x = 0.6 m
Thus, the maximum compression of the spring is 0.6 m.
Learn more about spring constant here: brainly.com/question/1968517
Answer:
the right answer is The standard unit of measurement for acceleration is meters per second squared or m/s2.
