Answer:
One of the most common injuries that result from working on a scaffold is electrocution. If workers make contact with those wires while working, it can lead to electric shock, especially if that contact damages the wire or if the scaffold is made of metal.
Answer:
LOTS
Explanation:
Catapults, Towers, and Trebuchets were all used by Saladin to capture Jerusalem in 1187
Answer:
Three material considerations are;
1. Identify and appraise the attainment of the goal of the with the design specification
2. Ascertain the required load the product being designed will experience and the suitability of the design specification to that load
3. Review the producibility of the design to ensure that it can be produced with the available technology
Explanation:
1. The appraisal of the design includes the consideration of the factors of the design and the building of reliability and efficiency into the design from the beginning
2. Ascertain if the product will require toughness, elasticity, and if will be subject to sudden or repeated loading conditions
3. Ensure that the design can be readily produced with the accessible manufacturing equipment during the conceptualization stage of the design.
1) 
2) 8.418
Explanation:
1)
The two components of the velocity field in x and y for the field in this problem are:
The x-component and y-component of the acceleration field can be found using the following equations:
The derivatives in this problem are:
Substituting, we find:
And
2)
In this part of the problem, we want to find the acceleration at the point
(x,y) = (-1,5)
So we have
x = -1
y = 5
First of all, we substitute these values of x and y into the expression for the components of the acceleration field:
And so we find:
And finally, we find the magnitude of the acceleration simply by applying Pythagorean's theorem:
Answer:
there is no answer because there are no variables
Explanation:
