The moment of inertia about the axis of a solid cylinder is <u>less than</u> the moment of inertia of a cylindrical shell having the same mass and radius.
<h3>How to calculate moment of inertia?</h3>
Mathematically, the moment of inertia for a solid cylinder is calculated by using this formula:
I = (1/2)mr²
<u>Where:</u>
In conclusion, the moment of inertia about the axis of a solid cylinder would be <u>less than</u> the moment of inertia of a cylindrical shell that has the same mass and radius because the mass of the solid cylinder must be taken near the axis of rotation, which makes it smaller.
Read more on moment of inertia here: brainly.com/question/3406242
control group, because they are the group that is not being tested on.
Step-by-step explanation:
Assuming the data is as shown, restaurant X has a mean service time of 180.56, with a standard deviation of 62.6.
The standard error is SE = s/√n = 62.6/√50 = 8.85.
At 95% confidence, the critical value is z = 1.960.
Therefore, the confidence interval is:
180.56 ± 1.960 × 8.85
180.56 ± 17.35
(163, 198)
Restaurant Y has a mean service time of 152.96, with a standard deviation of 49.2.
The standard error is SE = s/√n = 49.2/√50 = 6.96.
At 95% confidence, the critical value is z = 1.960.
Therefore, the confidence interval is:
152.96 ± 1.960 × 6.96
152.96 ± 13.64
(139, 167)
United Nations estimates that the population of developed countries between now and 2025 will grow more slowly than in developing countries.
By the year 2050, the worlds population is projected to reach 9 billion people.
According to a report by the United Nations, the current world population of 7.6 billion is expected to reach 8.6 billion in 2030, 9.8 billion in 2015 and 11.2 billion in 2100. Besides, The biggest increase in population is estimated to happen in Africa, and Asia.
