<span>This statement is true that Investigations provide large amounts of information about a wide range of variables.
We investigate to collect the information about all the variables, then we correlate the information of different variables to get some common information. And, with this information, we further process to achieve the required goal.
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Answer:

Explanation:
<u>Given:</u>
- Initial temperature,

- Final temperature,

- Diameter of the hole,

- Expansion coefficient of the Aluminum,

Let the diameter of the rivet at
be
, such that,

is the elongation in the diameter of the rivet.
We know, The change in the diameter of the rivet is related with the change in temperature as:

where,
is the change in temperature = 
Also, 
Using these values,

It is the required diameter of the rivet at
.
I think there caused by the gravitational pull on the earth from the moon
The man is pulled upward by a net force of
∑ <em>F</em> = (86 kg) (1.35 m/s²) = 116.1 N
The net force is comprised of the tension <em>T</em> in the cable and the man's weight <em>W</em>, such that
∑ <em>F</em> = <em>T</em> - <em>W</em> = 116.1 N
<em>T</em> = (86 kg) (9.80 m/s²) + 116.1 N
<em>T</em> = 958.9 N ≈ 960 N