Answer:

Explanation:
As we know that the angle made with the vertical is given so we have

so we have

now differentiate both sides with time


now we know that



now we have


The information being conveyed by an object about the important events, advancements, and people of a specific time period is known as: C. historical significance.
<h3>What is
historical significance?</h3>
Historical significance can be defined as an information that is being conveyed by an artistic object about the important events, advancements, technology, phenomenon, and people that have existed and occurred over a specific time period
This ultimately implies that, historical significance refers to the information that an object conveys with respect to the important events, advancements, technology, and people of a specific time period.
Read more on historical significance here: brainly.com/question/1020328
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Work needed = 23,520 J
<h3>
Further explanation
</h3>
Given
height = 12 m
mass = 200 kg
Required
work needed by the crane
Solution
Work is the transfer of energy caused by the force acting on a moving object
Work is the product of force with the displacement of objects.
Can be formulated
W = F x d
W = Work, J, Nm
F = Force, N
d = distance, m
F = m x g
Input the value :
W = mgd
W = 200 kg x 9.8 m/s²x12 m
W = 23520 J
I think the answers are box #1 and #3. It is number one for a fact. However, it depends where the start is at #3.